To examine the efficacy of cow's milk immune globulin in the treatment of diarrhea due to chronic intestinal cryptosporidiosis in patients with AIDS. The secondary end points of the study involve functional improvement which will be determined from nutritional and absorption studies.

Inclusion Criteria

Patients must have:

• Diagnosis of diarrhea associated with intestinal cryptosporidiosis.

Exclusion Criteria

Co-existing Condition:

Patients with the following conditions or symptoms are excluded:

• Survival time projected to be < 9 weeks.
• Inability to tolerate any oral intake.
• Known allergy or intolerance to milk products.
• Organic mental syndrome precluding informed consent or following directions.

Patients with the following are excluded:

• Survival time projected to be < 9 weeks.
• Inability to tolerate any oral intake.
• Known allergy or intolerance to milk products.
• Organic mental syndrome precluding informed consent or following directions.