species – n. a group of animals or plants that are similar and can produce young animals or plants

outbreak – n. a sudden start or increase of fighting or disease

livestock – n. farm animals

mammal – n. an animal that feeds its babies on milk from its body

immune system – n. the cells and tissues in the body that fight against infection

metabolism – n. all the chemical processes in the body, especially the ones that use food

host – n. a living animal carrying a disease

primate – n. a member of the group of animals that includes monkey and people

surveillance – n. the activity of watching someone or something very carefully