Vertebrate pests are animals like rodents, birds, deer, bats, and some fish and reptiles that negatively impact human activities. They can damage crops, transmit diseases, and conflict with humans. Zoonotic diseases are caused by germs that spread between animals and people through direct contact, indirect contact, vectors, food, or water. Examples are rabies, avian influenza, and COVID-19. Proper hygiene and food handling can reduce disease transmission between animals and humans.