Mayo Clinic Q and A: Safeguarding the blood supply

DEAR MAYO CLINIC: I have given blood for 25 years, but just recently, I received a letter saying I could not give blood for six months because of an inconclusive hepatitis B test. What does this mean? Will I be able to give blood in the future? ANSWER: The notification you received means the test [...]
Source: News from Mayo Clinic - Category: Databases & Libraries Source Type: news