Administration of colostrum enriched with anti-Flu antibodies may alter host's response to the flu virus.

Inclusion Criteria:

• Healthy male volunteers ages 18-60
• If participating in sexual activity that could lead to pregnancy, the study volunteer must agree that two reliable methods of contraception will be used simultaneously while receiving the protocol-specified medication and for 1 month after stopping the medication
• Men > 18 years.
• Ability and willingness of subject to provide informed consent
• Screening tests' results within 15% of normal values

Exclusion Criteria:

• Female
• Continuous use of the following medications for more than 3 days within 30 days of study entry:
• Immunosuppressives
• Immune modulators
• Systemic glucocorticoids
• Anti-neoplastic agents
• Active drug or alcohol use or dependence that, in the opinion of the site investigator, would interfere with adherence to study requirements.
• Serious illness requiring systemic treatment and/or hospitalization within 30 days prior to entry.
• Subjects with a clinically significant infectious, immune mediated or malignant disease
• Subjects with anemia (Hb <10.5 gm/dl)
• Subjects with thrombocytopenia (platelets <100K/µl)
• Subjects with lymphopenia (absolute lymphocyte count <0.7)
• Subjects who were previously vaccinated against flu.
• Subject who received any vaccination within the last 6 months