The first flu vaccine ever invented was developed in 1938 by Jonas Salk and Thomas Francis. After testing, it was used in a limited capacity to...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough ...
Poliois a disease that used to paralyze more than 25,000 people each year before the polio vaccine was invented. Now children are vaccinated against it at 2 months, 4 months, between 6 and 18 months, and between 4 and 6 years. MMRis another combo vaccine that protects against measles, m...
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Conclusion: Overall, the data demonstrate a similar immune response to the 3 lots of MMR, compared with M-M-R II. There was no obvious dose-response relationship noted over the broad range of mumps potencies in the MMR vaccine. 展开 ...
aThe issue now is to maintain the age-specific susceptibility of preschool children aged 1–5 years at low levels. To prevent accumulation of susceptible people when a five-year interval exists between the first and second dose of MMR vaccine, it is necessary to maintain the coverage of prescho...
aThe coverage rate between 1988 and 1999 had been stable. Between 73% and 83% of locally born children aged 12–24 months were known by maternal and child health centres to have received the first dose of the MMR or measles vaccine. This figure was 85–87% when the children reached 2–...
was nearly wiped out in the United States 14 years ago by the universal use of the MMR vaccine(疫苗).But the disease is making a comeback,caused by a growing anti-vaccine movement and misinformation that is spreading quickly.Already this year,115 measles cases have been reported in the USA...
By contrast, a single study undertaken in Brazil examined the co-administration of a three-component measles, mumps, and rubella (MMR) vaccine and the yellow fever vaccine; its findings showed decreased seroconversion for yellow fever, rubella, and mumps, but no effect on measles seroconversion ...
Cameron N. When should be introduce a combination measles-mumps- (MMR) vaccine into the national childhood expanded immunization programme in South Africa? Vaccine 2012:Current issue.Cameron NA. When, and how, should we introduce a combination measles-mumps-rubella vaccine into the national ...
When Jeffrey Epstein's death was announced, America had a unique, almost unheard of moment of unity where we all blurted out, "Suicide???" The evidence against Epstein was piled high. His past conviction and white glove treatment generated worthy doubt. The manner of his crime and its reac...