What is a potential hazard associated with working with animals?

Exposure to zoonoses is indeed a significant potential hazard associated with working with animals. Zoonoses are infectious diseases that can be transmitted between animals and humans. They pose a risk for individuals who work with animals, as they can be transmitted through direct contact with animal body fluids, bites, or scratches, and even through environmental exposure to feces or contaminated surfaces. Understanding this hazard is crucial for implementing proper safety protocols and using personal protective equipment (PPE) to mitigate risks.

The other options, while they may seem relevant to the overall wellbeing of animal handlers, do not represent hazards. Increased protein levels, improved mental health, and increased physical activity are not directly related to the risks of working with animals and are generally considered positive outcomes or aspects rather than potential hazards.