One Health Day

Purpose

One Health Day, observed every year on Nov. 3. is an opportunity to recognize how One Health is being put into practice and the partnerships and connections that make this work possible. This page has resources to help support this global campaign.

Nov 3, 2026

Background

Illustration of a landscape with animals and people interacting in outdoor environments. Text reads: One Health Day November 3 Connecting human, animal, and environmental health: when we protect one, we protect all.
Connecting Human, Animal, and Environmental Health: When We Protect One, We Help Protect All

One Health Day is an opportunity to recognize how One Health is being put into practice and the partnerships and connections that make this work possible. The One Health approach can address a wide range of public health concerns like antimicrobial resistance, environmental health, food safety, vector-borne diseases, zoonotic diseases, and much more.

Communication, coordination, and collaboration among partners working in animal, human, and environmental health as well as other relevant areas are an essential part of the One Health approach. Working together allows us to have the biggest impact on improving health for people, animals, plants, and our shared environment.

One Health Definition

One Health is a collaborative, multisectoral, and trans-disciplinary approach — working at the local, regional, national, and global levels — with the goal of achieving optimal health outcomes recognizing the interconnection between people, animals, plants, and their shared environment. (US Government Definition, established 2017).
For Everyone About One Health

How to participate

Social media graphics

See the One Health Communication Resources page for more graphics.

Key messages & social media

  • One Health is an approach that recognizes the interconnection between people, animals, plants, and their shared environment.
  • One Health is a team sport. A successful One Health approach to public health involves many experts working together to improve the health of people, animals — including pets, livestock, and wildlife – plants, and the environment.
  • One Health is not a new concept, but it has become more important in recent years. The One Health approach can help address many kinds of public health threats, including zoonotic diseases, antibiotic resistance, vector-borne diseases, food safety and security, chronic disease, mental health, and more.
    • Zoonotic diseases can be spread between animals and people. More than half of all infections that people can get are zoonotic.
    • Many factors have changed interactions between people, animals, plants, and our environment.
    • Pets are an important example of One Health.
    • Communication, coordination, and collaboration among partners working in animal, human, and environmental health as well as other relevant areas are an essential part of the One Health approach. Working together allows us to have the biggest impact on improving health for both people and animals living in a shared environment. No one person, organization, or sector alone can effectively address diseases at the human-animal-environment interface alone.
    • The One Health approach works because it addresses health threats from all possible angles: human, animal, and environmental. By protecting one, we help protect all.

Sample Social Media Messages

X (Twitter)

November 3 is #OneHealthDay. The #OneHealth approach helps achieve the best health for people, animals, and our shared environment. Learn more: https://bit.ly/3YinvIV

Tomorrow is #OneHealthDay. #OneHealth recognizes that human, animal, and environmental health are connected. By protecting one, we help protect all. Learn more: https://bit.ly/3ZUrXip

Today is #OneHealthDay. As our world becomes more connected, the need for #OneHealth increases. Together, we can prevent the next pandemic & protect health for all: https://bit.ly/3ZUrXip

The #OneHealth approach can help to address everything from #AntimicrobialResistance to zoonotic diseases. Learn how One Health applies to many aspects of our lives: https://bit.ly/3ZUrXip #OneHealthDay

#OneHealth is a team sport. We can protect human health, animal health, and our shared environment by working together. Learn more: https://bit.ly/3ZUrXip #OneHealthDay

Recognizing the connections between people, animals, and our shared environment means we can solve problems threatening us all. The #OneHealth approach can make the world a safer, healthier place. Learn more: https://bit.ly/3ZUrXip #OneHealthDay

Some health threats are too great to address alone. Working at local, regional, national and global levels, we must use the One Health approach to see effective and sustainable solutions to address these threats. #OneHealthDay https://bit.ly/3UmRblU

Facebook

Today is One Health Day. Learn how the One Health approach to public health can bring experts together to improve the health of people, the environment, and animals, including pets, livestock, and wildlife. Learn more: https://bit.ly/3YinvIV

Did you know that more than half of all infections people can get can be spread by animals? In celebration of One Health Day this year, learn how the One Health approach to public health can lead to healthier people, animals, and environment. Learn more: https://bit.ly/3ZUrXip

Today is One Health Day. The One Health approach can help solve many public health issues, from antimicrobial resistance to food safety and security. We can work together to make a healthier world for people, animals, and our shared environment. Get One Health resources here: https://bit.ly/3ZUrXip

The goal of One Health is to recognize the connection between people, animals, plants, and our shared environment, so we can better work together to achieve the best health outcomes for all. Learn more: https://bit.ly/3ZUrXip

Instagram

Have you heard of One Health? One Health is the idea that human, animal, and environmental health are closely connected. When we protect one, we help protect all. Tap the link to learn more. #OneHealth #OneHealthDay #PublicHealth LINK: https://bit.ly/3ZUrXip

Resources

Additional links

Content Source
National Center for Emerging and Zoonotic Infectious Diseases (NCEZID)
About This Page
Published: May 15, 2024
Updated: October 10, 2024

This page was last updated on this date. Updates may include minor edits, image changes, or other modifications to page content.

Reviewed: October 25, 2023

The information on this page was last reviewed by subject matter experts to ensure accuracy.