An attenuated vaccine (or a live attenuated vaccine, LAV) is a vaccine created by reducing the virulence of a pathogen, but still keeping it viable (or...

influenza. It is an attenuated live vaccine, unlike other influenza vaccines, which are inactivated vaccines. Live attenuated influenza vaccine is administered...

Vaccine shedding is a form of viral shedding which can occasionally occur following a viral infection caused by an attenuated (or "live virus") vaccine...

contrast, live vaccines use pathogens that are still alive (but are almost always attenuated, that is, weakened). Pathogens for inactivated vaccines are grown...

demonstration of a polio vaccine was by Hilary Koprowski in 1950, with a live attenuated virus which people drank. The vaccine was not approved for use...

infected. There are other vaccine candidates in development including live attenuated, inactivated, DNA and subunit vaccines. In December 2018, Dengvaxia...

(Merck), in use since 2006, is an attenuated vaccine which consists of a larger-than-normal dose of chickenpox vaccine. Unlike Shingrix, Zostavax is not...

received the live Enders-attenuated Edmonston B strain plus gamma globulin, 130 children received a "further attenuated" vaccine without gamma globulin...

the doses were obtained by attenuation, but later ones were progressively more virulent. The Pasteur-Roux vaccine attenuated the harvested virus samples...

plague, so live, attenuated vaccines and recombinant protein vaccines have been developed to prevent the disease. The first plague vaccine was developed...