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Johns Hopkins Bloomberg School of Public HealthCAAT

Johns Hopkins University
Center for Alternatives to Animal Testing

We believe the best science is humane science. Our programs seek to provide a better, safer, more humane future for people and animals. To learn more about CAAT and the 3Rs, visit our About Us page. And consider supporting our mission.


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CAAT News and Upcoming Events

News and upcoming events sponsored by CAAT, CAAT-Europe, and the Transatlantic Think Tank for Toxicology (t4).


National Academies of Sciences, Engineering, and Medicine Webinar: Microphysiological Systems: Bridging Human and Animal Research—A Workshop
January 19-20, 2021

Thomas Hartung and Tom Luechtefeld IVAMSS Webinar
Friday, January 29, 2021
11am EST

Video: COVID-19: A Brain Disease?
How Lab-grown "Mini-Brains" Can Be Infected with COVID-19
With CAAT Director Thomas Hartung
From the Euroscience Open Forum 2020

7th Annual 3Rs Symposium: Practical Solutions and Success Stories
Watch Now

Find more videos on our YouTube channel

Call for Proposals: 2021 Reduction and Refinement Award
Deadline: January 31, 2020

Pan-American Conference for Alternative Methods
May 2022
Windsor, Ontario


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CAAT and CAAT-Europe promise sound scientific synergy involving experts from both sides of the Atlantic to promote the implementation of human-relevant alternative approaches, the advancement of research, and the dissemination of the 3Rs.

Thomas Hartung and Marcel Leist Receive Ursula Händel Animal Welfare Prize 2020 for Alternative Methods to Animal Experiments.

5th International Conference on Alternatives for Developmental Neurotoxicity (DNT) Testing
Konstanz, Germany
Rescheduled for 2021
Please Sign Up for our CAATwalk Newsletter for Updates

Altertox Academy: 2021 Training Courses

CAAT-Europe is housed at the University of Konstanz, Germany.


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CAATwalk Newsletter

Sign up for our CAATwalk Newsletter for the latest news about our activities! View the latest CAATwalk Newsletter (January 13, 2021)

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