The study investigates if drinking pasteurized milk with inactive particles of the flu virus A(H5) can lead to virus detection in the nose or throat. **Pasteurization** is a process where milk is heated to kill harmful germs. The inactive virus particles can't cause illness, but researchers want to know if they can still be identified after drinking the milk. The findings will help the CDC understand how milk might affect flu monitoring.
- Participation involves drinking 250 mL of pasteurized milk either once or over three days.
- Participants will provide nasal swabs and possibly blood, saliva, and stool samples.
- Eligible participants are healthy adults aged 18-64, not pregnant or breastfeeding, without recent flu symptoms or milk allergies.