About us

Get InvolvedViDAS

Veterinarios Internacionales Dedicados a Animales Sanos 
International Veterinarians Dedicated to Animal Health

ViDAS is a non-profit organization that assembles teams of veterinarians, veterinary technicians, veterinary students, and animal–loving volunteers to travel internationally and provide free spay and neuter services for dogs and cats. Our mission is to provide these services in areas of need as a means of combating pet overpopulation. We strive to work together with the local community to provide education to people and aid to local veterinary groups to spark positive and sustainable change.

Each year we travel to an area in need to provide free safe sterilization and education for the community in an effort to fight pet overpopulation. We work together with the local community to make a difference that affects not only the animals but the people of the community as well. Over the next 18 months, we will also be traveling down to Puerto Rico for a “spayathon” as part of a collaborative effort with the Humane Society of the United States. Our goal is to assist with pet overpopulation due to the hurricanes that recently devastated the island. ViDAS has long-term goals of expanding it’s outreach throughout Latin America, the Caribbean, as well as other countries within reach in an effort to educate community members and provide actionable solutions to both stem and prevent pet overpopulation. Please read on to learn about the clinics we have held, stories about individual animals and the volunteers that have helped them, future clinics, and how you can help!


ViDAS conducted our first clinic in June of 2002. Six veterinary students and two veterinarians successfully sterilized 100 cats and dogs over 5 days in Playa del Carmen. The need for continued attention to the overpopulation problem was recognized by the founding members: Cristina Gutierrez, Ruth Parkin, Robyn Gadojsik, and Ginny Gill, who were veterinary students at Colorado State University at the time. With the invaluable mentorship of Dr. Lesli Groshong of the Humane Society of Boulder Valley, ViDAS was born.

Since our inaugural trip in 2002, ViDAS has safely sterilized over 20,000 animals in eight different cities around the Yucatan Peninsula, and most recently have become part of a collaborative “spayathon” in Puerto Rico. The spayathon is being organized by the Humane Society of the United States where ViDAS will be an integral part of the mass sterilization mission. We are constantly working toward our goals to become more productive and efficient at each clinic, to educate locals about the problems and solutions to pet overpopulation, and to work with local veterinarians and municipalities on sustainable and humane solutions to pet overpopulation. Please consider helping us achieve these goals by volunteering with or donating to ViDAS today.


Our mission is to prevent animal suffering due to starvation, disease, and other health problems associated with pet overpopulation in areas of need, recognizing also that overpopulation of animals contributes directly to human disease.

We are dedicated to improving the lives of animals and people through veterinary medicine and education! We provide free high quality/high volume sterilization services for street animals and owned animals of impoverished areas or areas in need.  Our focus is safe sterilization for the animals and education for the people about safe animal handling, zoonotic disease, and general animal husbandry and health care.   We also strive for coordination with local veterinarians and municipalities to establish sustainable and humane solutions to pet overpopulation.

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