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Daily Archives: June 17, 2021

How many types of COVID-19 vaccines are there?

How many types of COVID-19 vaccines are there?

How many types of COVID-19 vaccines are there? Vaccines against COVID-19 can be divided into 4 main types according to the method of production. mRNA vaccines  mRNA vaccines are the production of vaccines using part of the genetic code of the virus injected into the body. like