For oral use only & do not inject. Postpone vaccination in subjects w/ acute severe febrile illness, diarrhea or vomiting. Infants w/ GI illnesses; symptoms indicative of intussusception; immunosuppressed infant, patients w/ immunodeficient close contacts eg, individuals w/ malignancies, immunocompromised or on immunosuppressive therapy. A protective immune response may not be elicited in all vaccinees. Does not protect against gastroenteritis due to other pathogens than rotavirus. Not for use in adults.