DDPHE Blog: One Health Connects People, Animals, and the Environment

DDPHE Blog: One Health Connects People, Animals, and the Environment

Published on November 03, 2025

At the Denver Department of Public Health & Environment (DDPHE), we know that the health of people, animals and the environment are deeply connected. This idea, known as the One Health approach, isn't new, but it's more important than ever as our world becomes increasingly interconnected.

The Centers for Disease Control and Prevention (CDC) defines One Health as a collaborative effort across sectors to achieve the best health outcomes for people, animals and our shared environment. In simpler terms: when we care for animals and the environment, we're also protecting ourselves.

Why One Health Matters
Our relationship with animals and nature has changed. We live closer to wildlife, travel more, and move goods, including animals, across the globe. Climate change and land development have also disrupted natural habitats, creating new ways for diseases to spread between animals and people. That's why DDPHE brings together experts in public health, environmental science and animal care. By working as one team, we can better detect, prevent, and respond to health threats-keeping Denver's people, pets, and wildlife safe.

One Health in Action at DDPHE
During mosquito season, DDPHE's Epidemiology and Data Science team teams up with Environmental Quality to track diseases like West Nile Virus. By reviewing both human and mosquito data in real time, they can quickly identify risks and keep Denverites informed. These teams also prepare for and respond to other zoonotic diseases-like plague and avian influenza-that can impact pets, wildlife, and people.

Our Denver Animal Protection (DAP) team and Epidemiology staff often work hand-in-hand when responding to reports of sick or injured animals. These situations can sometimes have human health implications, and collaboration is vital to assessing risk, collecting lab samples, and providing public guidance. Whether it's responding to potential rabies exposure, tularemia in wildlife, or other zoonotic threats, DDPHE works alongside veterinarians, animal welfare groups, and wildlife experts to protect both animals and people.

DDPHE's nursing team plays a crucial role in One Health by providing vaccines and other health services during Denver Animal Shelter (DAS) events. This collaboration connects pet immunizations and community members with essential services, helping to prevent the spread of zoonotic diseases and protect the health of both animals and their human companions. These efforts demonstrate how public health and animal care go hand-in-hand in keeping Denver safe.

By recognizing how people, animals, and the environment are connected, we're creating a healthier Denver.

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