About the One Health Intellectual Exchange Series

This interdisciplinary course will introduce the concept of One Health as an increasingly important approach to a holistic understanding of the prevention of disease and the maintenance of both human and animal health. The list of topics will include a discussion of bidirectional impact of animal health on human health, the impact of earth’s changing ecology on health, issues of food and water security and preparedness, and the benefits of comparative medicine. Learning objectives include 1) to describe how different disciplines contribute to the practice of One Health, 2) to creatively design interdisciplinary interventions to improve Global Health using a One Health model, and 3) to interact with One Health-relevant professionals in the Triangle and beyond. The course aims to include students from Duke, UNC and NC State from diverse disciplines relevant to One Health, including: human medicine, veterinary medicine, environmental science, public health, global health, public policy, and others.
Showing posts with label OH IEG Sessions. Show all posts
Showing posts with label OH IEG Sessions. Show all posts

Tuesday, April 22, 2014

Public Health Preparedness at a National Special Security Event: Epidemiology, Food Safety and Food Defense at the 2012 Democratic National Convention: Tuesday, April 8th

This past week we heard from Mr. Larry Michael of the NC Department of Health and Human Services and Ms. Donna Wanucha or the regional office of the FDA. Their unexpectedly fascinating joint lecture was on the preparedness for NSSE—National Special Security Events, particularly food security.  Their thorough description of the planning for the available food and food preparation of the democratic national convention was unexpected in that I would have never considered food to be a vulnerable point for national events. Yet, when they described calling back all 2,000 lunch boxes for the security teams due to potentially “bad” chicken, it was not difficult to see how easily an entire event could be compromised by a little salmonella.


While the talk opened my eyes to all the potential threats that well trained FDA and Public Health officials deal with daily, I found myself thinking of my pet cat, Chui. I have the choice to only frequent establishments with high safety grades and I trust the local and federal government have tracked the food sources sufficiently that I will not get ill from my food. However, my cat does not have this luxury. As recent as 2007, pet food was recalled from over 100 brands contaminated from imported vegetable proteins from China (Roth, Tsay, Pullman, & Gray, 2008). Though we stringently regulate “farm to fork” production of human food, animal nutrition has fallen by the wayside. This does not pose a direct health concern to humans. Any food-born illness is not transferable to human pet owners, unless they are consuming the pet food themselves. However, especially in America, we have great time, money, and emotional investment in our companion animals.  It is estimated that Americans will spend over 22 billion USD on companion animal food in 2014 alone ("Pet Industry Market Size & Ownership Statistics,"). Despite this investment, comparatively poor consideration is given to the supply chain of pet food. Though this does not directly impede on human health, I believe it is a One Health issue as the emotional and financial burden on humans is great. We are becoming accustomed to thinking so carefully about our own food sources; it is time we give as much consideration to the food for our best friends. 


           
Roth, A. V., Tsay, A. A., Pullman, M. E., & Gray, J. V. (2008). UNRAVELING THE FOOD SUPPLY CHAIN: STRATEGIC INSIGHTS FROM CHINA AND THE 2007 RECALLS*. Journal of Supply Chain Management, 44(1), 22-39. 


Authored by Chrissy Dideriksen

Thursday, April 17, 2014

Impacts of Improved Cookstoves on Environmental Health and Human Health: Tuesday, April 1st

On April 1, the One Health Intellectual Exchange’s session consisted of presentations from Jessica Lewis and Marc Jeuland that concerned the impacts of cookstoves on air pollution, health, and fuel.  Jessica Lewis is a third year PhD student in the Nicholas School of the Environment at Duke University and is an EPA STAR Doctoral Fellow.  She studies household energy and health and focuses on traditional cooking in developing countries.  Marc Jeuland, PhD is an Assistant Professor of Public Policy, Global Health, Environment, and Civil and Environmental Engineering at the Sanford School of Public Policy at Duke University.  In the past, Dr. Jeuland worked with the World Bank and volunteered with the Peace Corps for projects related to water sanitation.  His research includes economic implications of climate change, management of trans-boundary water resources, water sanitation, and environmental health. 

Ms. Lewis began with an overview of traditional and improved cookstoves and then highlighted her study in Odisha, India.  Importance of research on cooking methods and their impacts includes the following reasons:  forty percent of the world relies on solid fuel for cooking and heating, and air pollution is responsible for one out of seven deaths, in which household air pollution (HAP) contributes.  HAP includes substances such as particulate matter, black carbon, carbon monoxide, and carcinogenic materials.  Disadvantages of traditional cookstoves and solid fuels are high pollution risk, increased fuel wood use, deforestation, and impacts on health and climate.  Therefore, improved cookstoves are being introduced to improve its efficiency and reduce emissions in order to ultimately achieve health and environmental gains. 

The study in Odisha, India included an extensive baseline survey from five hundred households to assess firewood use, personal air pollution, household air pollution, and health implications.  Monitors were worn by some individuals to measure personal air pollution.  Factors such as household education and fuel prices significantly affect the choice of using improved cookstoves.  The improved cookstove significantly reduced firewood use, household air pollution, and personal air pollution.  Stove “stacking” was common in the village, as multiple stove types were used by households, and only twenty-five percent of households own only one stove.  Further research could determine the length of cookstove use by households, the age of cookstove users, and the health history of cookstove users.  These further questions could indicate additional health implications from cookstove use.  Ms. Lewis also directed the group to visit dukeenergyhealth.org.

Dr. Jeuland followed with a presentation about why people choose to cook with an improved cookstove.  Beginning with background information, Dr. Jeuland explained that people may choose not to cook with an improved cookstove because of cost, lack of knowledge, no preference, being risk averse, and conformism.  In theory, people adopt environmental health technologies because of rationality, costs, time, and interventions.  However, people often do not adopt environmental health technologies, and “free stove” studies may not be successful despite their cheapness and efficiency.

Dr. Jeuland’s presentation then focused on his study in India.  The study aimed to find improved cookstove adoption determinants, collect evaluations of their impacts, and conduct marketing studies.  First, the study evaluated baseline cooking and fuel behaviors, knowledge and perception of cookstoves, and cookstove design preferences through a baseline survey.  The surveys showed that people preferred cheaper cookstoves that emit less smoke, decrease the needed amount of fuel, and increased the number of cooking surfaces.  After the baseline survey, pilots were conducted in which a cookstove was offered to people along with a payment plan and advertised by social marketing.  Some people bought natural draft or electric stoves, and selling in poor, rural areas were difficult.  Following pilot studies, intervention occurred.  Information about cookstoves was distributed via fact sheets, and demonstrations for using cookstoves were performed in communities.  The people paid three installments, and a random rebate was offered.  According to the study, rebates encouraged cookstove purchases and use.  Electrical stoves were most used, but the users also had to pay for electricity.  Fuel savings were largest for households in the NGOs stratum, and fuel expenses increased with rebates, most likely due to electricity costs.  Dr. Jeuland summarized that supply of cookstoves is needed, as the study shows a demand for cookstoves.

Discussion and questions followed the presentation.  Questions included the following topics:
    • Practicality and effects of fixing a traditional cookstove instead of introducing a new cookstove
    • Children’s health impacted by cookstove use
    • Efficiency of a biogas stove
    • The need of proof for improved cookstove health impacts
    • The household member that decides to buy a cookstove
    • The use of a community stove
    • How taste is changed from using improved cookstoves versus traditional cookstoves



Post Authored by Erin Beasley, NC State University

Thursday, April 3, 2014

“Demon Dogs” or Panicked Public?: A History of Breed Scares Through the Ages: Tuesday, March 25th

On March 25th the One Health Intellectual Exchange welcomed Browen Dickey, a contributing editor of The Oxford American to discuss “’Demon dogs’ or panicked public? A history of breed scares through the ages.”

Ms. Dickey states that through her research she found breed scares are often cyclic, relative to current society, and often not necessarily about the breeds themselves but potential tension between different social groups. Breed scares/bans began as early as 1066 with the Mastiff. This was when royalty did not want those of lower social cast owning these dogs due to the potential of hunting on land owned by the king. Through her research she found that often breed scares could be pin pointed to certain events, such as the St. Bernard and the release of the movie Cujo or guard dog breeds with the increase of crime rates.

The current breed scare? The Pit Bull.  This “bully” breeds is beginning to be banned by apartment complexes and making it into certain state legislations. Starting in 1974 when dog fighting in certain rings became a popular topic. A media blitz came to bring the breed into the forefront, with reporters and journalists relying on the general public and dog fighters for information on this breed. Ms. Dickey has carried out an effort to interview owners nationwide to gain a better understanding of the Pit Bull breed. She found that that these dogs are often like any other breed, have a bad rap. They are often sweet, kind, and loyal to the owner.


Ms. Dickey made two points about breed panic that stuck out the most: it can lead to exacerbating the problem and letting human’s off the hook. So what will be the next breed to cause panic? Only time will tell.


Authored by Jessica Vasquez

Food Safety from Farm to Fork to Physician: Moving Towards a One Health Approach: Tuesday, March 4th

In this week's session, Barbara Kowalcyk, Ph.D. and CEO of the Center for Foodborne Illness Research and Prevention (CFI), a national non-profit organization that prevent foodborne disease by advancing a stronger, science-based food safety system, was our honored guest at the North Carolina One Health Intellectual Exchange Group. She received her master's degree in Applied Statistics from the University of Pittsburgh and a Doctorates in Environmental Health with a focus in Epidemiology and Bio-statistics from the University of Cincinnati. Although she began her career as a Statistician at a pharmaceutical company, her passion shifted to foodborne illnesses and food safety, due to a tragic personal event. Since then, her research has focused on the microbial aspect of foodborne pathogens and a system to improve epidemiology surveillance and awareness to prevent a pandemic outbreak.

Dr. Kowalcyk began her discussion by describing food safety and food security along with reasons why it should be a main priority and concern in people's lives. Statistics show approximately 48 million people contract illnesses, 128 thousand are hospitalized and 3 thousand deaths occur globally due to foodborne pathogens. The numbers are so high and increasing from the high transmission rate through food, people, water systems and petting zoos. The most vulnerable populations are pregnant women, senior citizens and children. Dr. Kowalcyk emphasizes the concerns of the under-analyzed effects of foodborne diseases globally, which inhibits the improvements of surveillance. Pathogens, including Norovirus, Salmonella, and E. coli 0157:H7, are continually evolving into new strains of antibiotic resistance that will cause a public health crisis in the 21st century.

Food companies, or the 'producers', have recently been the blame for the spread of foodborne illnesses instead on the consumers. Due to concerns of the spread of these pathogens, they have caused the CDC to implement sterilization procedures, like irradiation (a simple disinfecting process from a  UV light to kill the microbes growing in the food) and systematic preventive programs, like FoodNet, PulseNet, and Hazard Analysis Critical Control Point (HCCP), to food processing companies. Also, in 2011, Congress enacted the Food Safety Modernization Act (FSMA), a food safety law to mandate new risk-based approaches to the FDA's oversight of foodborne illness. This law will ensure the quality and amount of detection of bacteria to monitor the spread around the country. Fortunately, over the years, there has been an increasing amount of attention to improve the surveillance of foodborne diseases and to attempt to prevent sporadic outbreaks from occurring.

Dr. Kowalcyk then further argued the issues of people's assumption that foodborne diseases only result in acute illnesses, such as a 'tummy ache,’ as well as “it's something minor that is not necessary to visit or report to a physician.” In her paper, she describes the many long-term effects to numerous organ systems that people are unaware about the effects. Prominent sequelae of these infections include effects to the gastrointestinal, immune, nervous, respiratory, cardiovascular, endocrine and hepatic systems. Profuse diarrhea, another condition caused by foodborne infections, in children can cause deficits in cognition and development while in adults will make it more chronic [1]. The long-term consequences from the foodborne infections are detrimental to human health and must be taken with precaution. Dr. Kowalcyk wants to educate the people through CFI and provide a source of information about these pathogens, so that it is not something to be under-evaluated. 

Looking ahead towards the future, promising technology and procedures are being tested and formulated to eliminate the outbreaks of infections. An increase of epidemiology will drive preventive actions through the ability to constantly identify and detect the cluster of diseases that significantly harm people around the world. Dr. Kowalcyk quotes "surveillance goes beyond the detection of disease, but it is critical for prevention. There needs to be a surveillance shift from reactive to proactive action." The rise of antibiotic resistant pathogens and the continual difficulty of tracking the origin of the pathogens will force companies, farmers, and other countries to integrate to more cost effective surveillance protocols. Ultimately, the mission to prevent the spread of foodborne diseases is to advocate the necessity of funding for more studies and surveillance techniques to wealthy companies or governments as well as to educate the consumers on safe sterilization that will clean the foods from the burden of these pathogens. Lastly, Dr. Kowalcyk ends her discussion with a slide of children that have died or have severe complications of their lifestyle due to foodborne illnesses as a reminder of the true reason to promote proper surveillance and prevention of foodborne diseases.



[1] Batz, M. B., Henke, E., & Kowalcyk, B. (2013). Foodborne illness: Latest threats and emerging issues. Infectious Disease Clinics of North America, 27, 599-616.

Authored by Thanh-thao Thi Le

Saturday, February 12, 2011

Session 6: Feb 15, 2011: Tick-transmitted Infectious Diseases In North Carolina: Local, National and Global Implications

The One Health Intellectual Exchange "Philosophy to Practical Integration of Human, Animal and Environmental Health", an IEG discussion series, is sponsored by the Triangle Global Health Consortium One Health Collaborative. It is designed to enhance collaborations between physicians, veterinarians, researchers and other local / global health professionals by increasing public awareness of the interconnectedness of people, animals and the environment.

Session 6: Feb 15, 2011: Tick-transmitted Infectious Diseases In North Carolina: Local, National and Global Implications

This session will include a panel with leading researchers, Dr. Ed Breitschwerdt
Dr. Charles Apperson, and Dr. Ricardo Maggi. 


Learning Objectives:
1.  Students will be knowledgeable of the tick species that transmit pathogens of public and veterinary health importance.
2.  Students will be knowledgeable of the life cycles of ticks of public and veterinary health importance.
3.  Students will be knowledgeable of the bacterial pathogens and the general disease manifestations of bacterial pathogens of public and veterinary health importance. 
Suggested readings for this session are referenced below:

Friday, February 4, 2011

Session 5: Feb 8, 2011: Rabies from multiple perspectives: A One Health Exemplar

Session 5: Feb 8, 2011: Rabies from multiple perspectives: A One Health Exemplar
This session will include a 4-part panel with leading researchers, Dr. Charles Rupprecht, Dr. Bob Weedon, Dr. Carl Williams, and Peter Costa. Read on for more information on their presentations. 

Dr. Carl Williams, Rabies: A disease with a comprehensive medical, legal, and public health framework
Rabies is an infectious disease with the highest known case fatality rate, yet human cases of rabies in the US and NC are rare. In fact, a recognized human case of rabies has not occurred in NC since 1955. However, because of the burden of wildlife rabies in NC, and the high numbers of human and animal exposures to the disease, there is a strong public health and legal framework in place to limit the impact of this disease. No other human communicable disease, save perhaps HIV and TB, has such a specific legal framework in place for purposes of control. The success of these legal controls is dependant upon individual citizens and animal owners, physicians and veterinarians, and local and state public health officials working in concert. Rabies control is, and always has been, an ideal example of the concept of “One Medicine.” While rabies control laws are ultimately designed to protect human health, they have the benefit of providing significant benefits to animal health. As a result of compulsory dog, cat, and ferret rabies vaccination laws the number of rabies cases in these species is low. Similarly vaccination of raccoons along the Appalachian ridge against rabies (Oral Rabies Vaccination using Raboral V-RG) has the dual benefit of protecting raccoons in the central US from the raccoon variant of rabies, and protecting people there from many more exposures to rabies.

Learning Objectives:
1.    To understand the rationale for the existence of a legal framework for rabies control.
2.    To know the individual roles and responsibilities of animal owners, bite victims, animal control officers, physicians and veterinarians when dealing with rabies exposures.
3.    To understand basic principles of rabies exposure risk assessment to ensure people exposed receive appropriate care.

Dr. Charles Rupprecht, Rabies: an Epitome of the One-Health Concept
Rabies is one of the oldest infectious diseases, and has the highest case fatality rate of any conventional pathogen. The etiological agents are highly neurotropic, single-stranded, negative-sense RNA viruses in the Family Rhabdoviridae, Genus Lyssavirus. At least 12 different lyssaviruses, all which cause an acute, progressive encephalitis, have been described to date, some with considerable antigenic variation that lack cross reactivity to modern biologics. This zoonosis is distributed on all continents, with the exception of Antarctica. All mammals are considered susceptible, but major reservoirs reside in the Carnivora and Chiroptera. The domestic dog is the major reservoir, and responsible for >90% of human exposures and fatalities. Considering its veterinary impact on the loss of food, fiber, and fur, and public health impact, disability-adjusted life year scores, the burden of rabies lies within the top 10 echelon of global infections. Rabies is the only routine veterinary diagnostic test in which regular concentration upon laboratory results in a suspect animal directly determines human medical intervention. Additionally, animal models serve as the quintessential research subjects for innovative development of modern human prophylaxis and treatment options. Significantly, results of mass immunization programs in domestic and wildlife species demonstrate that rather than concentrate solely upon human rabies prevention, animal rabies can be controlled effectively, and in some cases eliminated locally. Hence, given these key facets alone, of decentralized laboratory-based diagnosis, research model development, and biotechnology/vaccinology, all focused centrally upon the role of non-human animals, with major benefits accruing directly for Homo sapiens, this ancient pariah is an ideal 21st example of the OneHealth concept in action.

Learning Objectives:
1)    To appreciate the value of basic surveillance and laboratory-based diagnosis conducted upon animal reservoirs and their critical role for decision making in human rabies exposures.
2)    To understand the utility of experimental rabies models, as surrogates in pathogenesis studies for relevant disease prevention and treatment in humans and other animals.
3)    To comprehend the historical importance of focusing upon control via vaccine-induced herd immunity, in domestic animals and wildlife, as a barrier to human infection, and a productive means of ultimate disease elimination.

Dr. G. Robert Weedon, The role of animal population control in human rabies prevention
The principal reservoir of rabies in the world is the domestic dog, the cause of >90% of human exposures and fatalities. The World Health Organization has said that control of rabies in domestic dogs can be accomplished by a three-pronged approach: a) epidemiologic surveillance, b) mass vaccination, and c) animal population control.

In most developing nations, only about 5 percent of dogs have owners in the Western sense, compared to 95 percent in the U.S. The rest can be loosely classified as community dogs. These community dogs may be a valued and recognized part of the community, but may not be “owned” in a manner that would provide supervision of movement in the neighborhood and address health needs such as rabies vaccination or population control. Therefore, any attempt to prevent rabies in a community will require both canine vaccination, and, in order to reduce overpopulation of these community dogs, animal birth control.

There is evidence that the combination of sterilization and rabies vaccination of dogs in a community can reduce the incidence of human rabies to zero. Imagine what could be accomplished by incorporating a non-surgical form of sterilization in such programs. The goal of this presentation is to increase awareness of the role of animal population control in rabies prevention campaigns in developing countries.

Learning objectives:
1) To recognize the unique demographics of dog populations, and their role as the principal reservoir of rabies, in developing countries.
2) To appreciate the value of canine sterilization and mass vaccination campaigns in preventing human rabies in communities where the dog is the principal reservoir of rabies.
3) To increase awareness of the potential for non-surgical sterilants and their use in rabies prevention programs in areas where animal overpopulation and human rabies is a problem.

Peter Costa, Health Communication: Bridging Gaps for Rabies Prevention
Rabies is a zoonotic disease that remains a serious public health concern, particularly in Asia and Africa, where the majority of human rabies deaths occur. It is clear that the areas where human rabies remains a major problem are also those areas where canine rabies is endemic. Raising awareness on rabies prevention and control is essential in preventing exposures, increasing the general public’s behaviors towards proper wound care and seeking medical attention. Enhanced awareness can also improve rabies control efforts in animals by increasing reporting of potential rabid animals, improving understanding among the population about the need to vaccinate dogs and behaviors of responsible dog ownership. All of these efforts will lead to improved overall rabies prevention at the local level. The recent establishment of an annual World Rabies Day and the involvement of professional health communicators in rabies outreach represent a major step forward. Fundamental and innovative communication techniques are used to achieve global coordination, galvanize support and empower stakeholders at different levels. Critically, the network also provides rabies advocates in different countries (often working in relative isolation) with an effective support structure and sense of engagement within a concerted international effort.

Learning Objectives:
1.    To list three reasons why rabies remains a neglected zoonotic disease on a global scale
2.    To describe the pivotal role of health communication and community education in effective and sustainable rabies prevention programs
3.    To formulate novel approaches to building partnerships, engaging hard-to-reach populations and overcoming barriers to health communication
Suggested readings for this session are referenced below:

Wednesday, January 26, 2011

Upcoming on February 1st: Session 4: The biology and control of dengue virus: Immune responses, disease dynamics and genetic modification of the mosquito vector


The One Health Intellectual Exchange "Philosophy to Practical Integration of Human, Animal and Environmental Health", an IEG discussion series, is sponsored by the Triangle Global Health Consortium One Health Collaborative. It is designed to enhance collaborations between physicians, veterinarians, researchers and other local / global health professionals by increasing public awareness of the interconnectedness of people, animals and the environment.


Session 4: The biology and control of dengue virus: Immune responses, disease dynamics and genetic modification of the mosquito vector
This session will include a 3-part panel with leading researchers, Dr. Dr. Aravinda Desilva, Dr. Katia Koelle and Dr. Fred Gould. Read on for more information on their presentations. 

Dr. Aravinda Desilva, Dengue Hemorrhagic Fever: a case study of a disease in which the human immune response can be beneficial or harmful
The disease caused by dengue viruses is complex.  Severe dengue hemorrhagic fever is a consequence of both the strain of virus infecting a person and the individual’s immune response to the virus.   I will summarize our current understand of mechanisms involved in protective and pathogenic immune responses to dengue.  I will discuss how studies on dengue pathogenesis are relevant to developing a safe and effective vaccine.   I expect the discussion to focus on how the immune response to a virus can both help and hurt the host.  I also expect a good discussion on the practicalities of developing a vaccine that is accessible to the people who need it the most,.

Learning goals:
1) Understand that many infectious diseases have complex presentation with severe cases only representing a small fraction of infections.
2) Understand the antibody dependent enhancement hypothesis of severe dengue
3) Be up to date with current approaches being used to develop dengue vaccines and the practicalities of deploying a dengue vaccine


Dr. Katia Koelle, Mathematical models for understanding the ecological and evolutionary dynamics of dengue
Dengue is an acutely infecting RNA virus classified into four distinct strains called serotypes. These four serotypes co-circulate in many dengue endemic countries. Interestingly, in several of these countries, it appears that these four serotypes occur asynchronously in time, effectively taking turns infecting individuals.  This presentation will focus on these intriguing serotype dynamics and how mathematical models of disease transmission can be used to better understand them. I will specifically address the possible roles that antibody-dependent enhancement and temporary cross-immunity play in shaping these dynamics. I will also discuss how mathematical models can be used as public health tools to evaluate the effect of disease control strategies (vaccination and vector control). I expect the discussion to focus on the (ideal) iterative interaction between the findings of mathematical models, the findings of virological studies, and the findings of epidemiological studies.

 Learning goals:
1) Develop a basic understanding of compartmental disease models and what they are useful for.
2) Understand how herd immunity and the immunological interactions between dengue’s four serotypes can affect patterns of dengue incidence.
3) Understand how dengue models can be used to evaluate and suggest vaccination strategies.

Dr. Fred Gould, Genomic approaches for manipulating mosquito vectors of malaria and dengue
This presentation will introduce the participants to approaches for genetically engineering mosquito strains that can be released into wild populations with the goal of either decreasing the density of the mosquito vector or altering the vector population in a manner that decreases its ability to transmit the disease. I will give a very brief overview of the genomic methods used and will touch on some of the ecological and ethical issues. I will also discuss how hybrid population dynamic/genetic models can be used to assess approaches for integrating vaccine delivery strategies with mosquito manipulation. I expect the discussion to focus on social and operational issues related to use of transgenic mosquitoes.

 Learning goals:
1) Have a very basic understanding of transgenic strategies for manipulating mosquitoes.
2) Be able to discuss the interaction between vector manipulation and vaccine use.
3) Be aware of ethical and operational issues related to use of transgenic mosquitoes.

Suggested readings for this session are referenced below:





Tuesday, January 25, 2011

One Health Intellectual Exchange 2011 Session 3 (Jan. 25): A Tale of Two Species: Co-evolution and Domestication of Dogs and People with Dr. Alan Beck

The One Health Intellectual Exchange "Philosophy to Practical Integration of Human, Animal and Environmental Health", an IEG discussion series, is sponsored by the Triangle Global Health Consortium One Health Collaborative. It is designed to enhance collaborations between physicians, veterinarians, researchers and other local / global health professionals by increasing public awareness of the interconnectedness of people, animals and the environment.

Session 3: Jan 25, 2011: A Tale of Two Species: Co-evolution and Domestication of Dogs and People
Domestication of the dog involves both humans and dogs developing together. One can guess that some of the earliest reasons for dog domestication were practical; dogs were guardians, were sentinels for the presence of other humans or animals, perhaps to be used to captured or restrained prey species, and perhaps to be eaten themselves when necessary. When looking at domestication as a naturally occurring event, and not simply artificial selection, it is very possible that dogs were, first and foremost created to be the companions of their creators and significantly influenced the survival and culture of human beings. The presentation will discuss the mechanisms of domestication, the hypothesis of the dog-human pack; mastering and loving, and the implication of domestication for humans and animals.
Featuring speaker/discussion leader Dr. Alan Beck, Director, Center of the Human - Animal Bond and Dorothy N. McAllister Professor of Animal Ecology, School of Veterinary Medicine, Purdue University

Suggested readings for this session are referenced below and Dr. Beck's bio is attached:
1. Darcy F. Morey. 1994. The early evolution of the domestic dog American Scientist
82:336-347.

2. Driscoll CA, Macdonald DW, O’Brien SJ. 2009. From wild animals to domestic pets, an evolutionary view of domestication. PNAS. 106:9971-9978, June 16.


3. Brian Hare, Michelle Brown, Christina Williamson, Michael Tomasello. 2002. The domestication of social cognition in dogs. Science. 298(November 22):1634- 1636.


4. Lyudmila N. Trut, 1999. Early canid domestication: the farm-fox experiment. American Scientist 87(2): 160-166. [the work of Dmitry Belyaev]


5.  DK Belyaev, 1979. Destabilizing selection as a factor in domestication The Journal of Heredity 70:301-308. [the original study]

Click here to go to the event notice to RSVP.