This randomized controlled trial compared an inactivated (injectable) influenza vaccine with a live-attenuated (nasal spray) influenza virus vaccine and with placebos. These investigators ...

In 24 children immunized with inactivated or attenuated measles-virus vaccines, responses of serum antibody (characterized by density-gradient ultracentrifugation and radioimmunodiffusion studies) ...

Medically reviewed by Gurdeep S. Sareen, PharmD Inactivated vaccines, also called killed vaccines, are made from a protein or other small pieces taken from a virus or bacteria. They use this ...

Live attenuated virus vaccine. ... Inactivated virus vaccine. This protocol, pioneered by Jonas Salk in the early 1950s, takes live viruses and kills them so they can’t replicate.

Immunizing children with intranasal live attenuated influenza vaccine (LAIV) does not appear to provide better protection against influenza than inactivated influenza vaccine (IIV), according to a ...

Inactivated: Contains an inactivated version of a virus or bacteria; Toxoid: ... "Many years ago, when we first started getting flu shots, they were live attenuated virus vaccines," said Dr. Knight.

Live-attenuated vaccines differ from traditional inactivated vaccines where the pathogen is “killed”, and as the name suggests the pathogen (typically a virus) remains active in live vaccines ...

There is none, because viruses aren't alive. A virus straddles the fuzzy boundary between living and dead. That's why biologists and doctors talk about "inactivated" or "attenuated" viruses, not ...

The design of vaccines against viral disease has evolved considerably over the past 50 years. Live attenuated viruses (LAVs)—those created by passaging a virus in cultured cells—have proven to ...

Cold-adapted attenuated polio virus -- towards a post-eradication vaccine. PLOS. Journal PLOS Pathogens DOI 10.1371/journal.ppat.1005483 ...

Live attenuated influenza vaccines, administered intranasally to swine, provoke a broader immune response than whole inactivated virus vaccines, which are the current standard. That broader immune ...

There are two main categories of viral vaccines—live (attenuated) and killed (inactivated) vaccines. A live attenuated vaccine is one where the virulence of the virus has been reduced, such that ...