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Vaccine. It took only 10 years from the discovery of the pathogen to the development of the first vaccine. The measles vaccine was found relatively rapidly.
The measles vaccine was found relatively rapidly. The vaccine is 100 effective in preventing the COVID-19virus in children ages 12 through 15. Moderna Says Its Vaccine Is Effective Against The Delta Variant.
The vaccine is 100 effective in preventing the COVID-19virus in children ages 12 through 15.
COVID-19 vaccines are free and available to anyone who wants one. The second dose can be given up to six weeks after the first dose if needed. Prior to the COVID19 pandemic an established body of knowledge existed about the structure and function of coronaviruses causing. Johnson Johnsons Jansen JJJanssen COVID-19 vaccine requires only one dose.