What is one reason public health is affected by pest management practices?

Pest management practices significantly affect public health primarily because pests can transmit diseases to humans. Many pests, such as mosquitoes and rodents, are known vectors for various pathogens that can lead to serious health issues, including viral, bacterial, or parasitic diseases. For instance, mosquitoes can transmit the West Nile virus, Zika virus, and malaria, while rodents can carry hantavirus and leptospirosis. Effective pest management practices help control these vectors, reducing the transmission risk and, consequently, the public health impact associated with these diseases.

In contrast, while pests might play a role in ecosystems—such as providing food for wildlife or contributing to natural processes like soil health—their direct impact on public health is minimal compared to their potential to spread diseases. The assertion that pests have no impact on public health is inaccurate, as it overlooks the significant health risks they pose.