Sentences with phrase «polio vaccine strains»
The team found 26 polio vaccine strains in sewage and three in river water.
http://www.sciencemag.org/ Not exact matches
Both vaccines were based on live, weakened strains of polio virus grown in monkeys» kidney cells.
Minnesota health officials are reporting an unusual death linked to a strain of polio once used in vaccines.
We have been fighting the disease with trivalent oral polio vaccine (tOPV), containing weakened viruses from each of the three polio strains.
Indeed, weakening influenza strains by passaging them in animals is an old technique for making human vaccines, including those for polio and yellow fever, according to virologist Vincent Racaniello of Columbia University.
New vaccines that targeted first one and later two strains of polio, rather than all three, were introduced and began to make real inroads.
During a fortnight in April this year, 155 countries successfully switched from trivalent to bivalent oral polio vaccine, which protects against the two remaining wild strains (type 1 and 3), making this the largest coordinated vaccine withdrawal in history.