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We get a new flu vaccine every year, is this much different?

• driverdan 5y ago
  Yes. It takes a long time to generate the flu vaccine. The strains need to be selected long before the season starts so it's a bit of guess work. That's why effectiveness varies from year to year. mRNA vaccines can be produced in high volumes much faster than traditional vaccines. It would allow the flu vaccine strains to be selected at a better time.
  • trompetenaccoun 5y ago
    Works great with the sars-cov-2 vaccine so far. That's why there are fewer symptomatic infections since the vaccines are out. /s
    • selcuka 5y ago
      Why the /s? I don't think there is a sure way to estimate what the number of total symptomatic infections would be if there weren't any vaccines, but the fact that unvaccinated are overrepresented in case statistics indicate that the vaccines are working as expected.
    • driverdan 5y ago
      There are far fewer symptomatic infections and deaths than there would have been otherwise.