A model school policy provides guidelines for Iowa school systems with regard to students with AIDS (Acquired Immune Deficiency Syndrome), herpes simplex, and cytomegalovirus. The AIDS guidelines include the following: (1) Routine screening students for AIDS associated virus is not recommended. (2) Children infected with the AIDS associated virus, who are receiving medical attention, should be able to attend classes in an unrestrictive setting, as should siblings of infected children. (3) An alternative educational plan should be provided for an infected child under certain circumstances. (4) Educational management decisions should involve the physician, parent or guardian, public health personnel and educational personnel. (5) An infected child should be excluded from school during an outbreak of a threatening communicable disease. (6) Specified hygiene precautions should be observed in cleaning up the body fluids of any child. (7) Inservice education to disseminate medical and other information about AIDS should be provided to school personnel. Guidelines regarding students with herpes simplex and cytomegalovirus state that infected children should not be excluded from school unless they are too ill to attend or unless secretions cannot be adequately controlled. Infection control through hygienic practices is recommended. (KM)