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 ...

With an inactivated virus vaccine, the amount of antigen required to induce immunity is much greater than that for a live-attenuated virus vaccine, because unlike the live-attenuated virus, the ...

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 ...

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

Such attenuated virus induced only mild ... approximately 100 TCD 50 of the Philadelphia 26 strain of measles virus recovered in this laboratory. 6 The serums were inactivated at 56°C. for ...

The vaccine recipient swallows the attenuated virus in a sugar cube or droplet. Polio vaccines in the U.S. use an inactivated, dead virus version. This type of vaccine is administered as an ...

Kids receive a total of four shots. The inactivated vaccine protects against paralysis. The oral vaccine, still used in many countries, is an attenuated vaccine, made with live but weakened ...