New Cleveland Clinic research reveals vaccinated staff had higher flu infection rates, but experts caution about study ...

The researchers noted several limitations of the study, including that "trivalent inactivated influenza vaccine" was used in ...

The study’s results indicated the cumulative incidence of influenza – or the number of new cases divided by the total number ...

The first research programs attempting to develop an inactivated ... Influenza virus was first isolated 80 years ago in 1933. The first influenza vaccine was a monovalent live-attenuated vaccine ...

The isolation of influenza virus 80 years ago in 1933 very quickly led to the development of the first generation of live-attenuated vaccines. The first inactivated influenza vaccine was ...