Sentences with phrase «live oral vaccine»
Salk's vaccine eventually was replaced by a more effective live oral vaccine developed by competitor Albert Sabin and distributed worldwide.
http://www.sciencemag.org/ Not exact matches
Israel's government this week launched a nationwide vaccination campaign, attempting to inoculate all children under nine years of age with oral polio vaccine (OPV), a form of the vaccine containing a live, weakened form of the virus.
Plus, for an oral or injectable attenuated vaccine, which contains a living but harmless version of a virus, there's a slim possibility that evolutionary pressure could eventually drive the virus, now distributed through the population, to become lethal again.
A champion of the oral polio vaccine in India in the 1990s who coined the phrase «two drops of life,» Vardhan is credited with having helped India achieve polio - free status earlier this year.
The first level of contact with live cholera bacteria — or their dead counterparts contained in oral cholera vaccines — occurs in the mucosa of the gut.
To reach that goal, most countries use an oral polio vaccine (OPV), a live but weakened version of the virus.
There is evidence that this might cause chronic inflammation in the gut, Petri said, coming from work by Evan Newell of Stanford University and colleagues who looked at peripheral blood mononuclear cells in three year old children who had received the oral polio vaccine in the first months of their life.
Although some of the most successful vaccines have been live attenuated forms (e.g. measles vaccine, oral polio vaccine), most modern vaccines are based on recombinant DNA technologies in some shape or form.
The mechanisms by which oral, live - attenuated vaccines protect against typhoid fever are poorly understood.
Exposure to ethyl mercury is said to be safer than exposure to methyl mercury because the blood half - life of intramuscular ethyl mercury from Thimerosal in vaccines in infants has been found to be substantially shorter than that of oral methyl mercury in adults [135].