What is the waiting period to donate blood after receiving an inactivated or attenuated H1N1 vaccine?
Available data do not support the deferral of blood donors following vaccination with live attenuated influenza vaccines (LAIV) or inactivated influenza vaccines against pandemic (H1N1) 2009 virus or for prophylactic use of the antiviral medications oseltamivir (Tamiflu) and zanamivir (Relenza). However, consistent with the recommendation, blood donors taking anti-viral medications for confirmed or probable pandemic (H1N1) 2009 virus infection should be deferred until at least 24 hours after they are free of fever without the use of fever reducing medications.