Producers can reduce the spread of infectious diseases into their herds and flocks by (1) purchasing animals their herds) from other exposure who have effective herd health management programs: (2) controlling of their animals to people and vehicles; (3) providing clothing. boots, and dis infectant to people who must be exposed to the animals and facilities: (4) iso lating animals to be introduced into their herds so that disease s can be observed for several weeks; (5) controlling insects, birds, rodents, and other animals that can carry disease organisms; and (6) keeping their animals out of drainage areas that run through their farm from other farms