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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
