Which scenario illustrates how occupational health and environmental exposures intersect in One Health?

• A. A farm worker exposed to zoonotic risk and pesticide exposure leads to integrated health surveillance and protective strategies.
• B. A city office worker with no animal contact is ignored.
• C. A hospital nurse's infection control plan is the only focus.
• D. A lab technician only studies pathogens in isolation.

Answer: (A)

The main idea being tested is how health risks at work can involve both animal-related factors and environmental factors, and why protecting people requires collaboration across human health, animal health, and environmental health disciplines.

In the farm worker scenario, the person faces a combination of zoonotic risk from contact with animals and exposure to pesticides in the same setting. Addressing this together through integrated health surveillance and protective strategies shows One Health in action: monitoring illnesses in both animals and people, evaluating environmental exposures, and implementing preventive measures that protect workers overall. This reflects a holistic approach where human health is connected to animal health and the environment, and responses rely on teamwork across fields such as medicine, veterinary science, and environmental health.

The other situations don’t capture that intersection. An office worker with no animal contact lacks the animal-environment interaction. Focusing only on infection control in a hospital ignores the animal and environmental dimensions. Studying pathogens in isolation in a lab misses how real-world exposures span human, animal, and environmental health and how prevention requires cross-disciplinary collaboration.