> Covid-19 only mutates when it has a pool to do so
Have the vaccines shown to prevent infection and transmission, or only reducing the chances of getting sick? If not the case, will variants still develop among a mostly vaccinated population?
Have the vaccines shown to prevent infection and transmission, or only reducing the chances of getting sick? If not the case, will variants still develop among a mostly vaccinated population?
--- A: The data to support the EUA include an analysis of 36,523 participants in the ongoing randomized, placebo-controlled international study, the majority of whom are U.S. participants, who completed the 2-dose vaccination regimen and did not have evidence of SARS-CoV-2 infection through 7 days after the second dose. Among these participants, 18,198 received the vaccine and 18,325 received saline placebo. The vaccine was 95 percent effective in preventing COVID-19 disease among these clinical trial participants with 8 COVID-19 cases in the vaccine group and 162 COVID-19 cases in the placebo group. Of these 170 COVID-19 cases, 1 in the vaccine group and 3 in the placebo group were classified as severe. ---
Maybe less with more aggressive variants.
--- A: Most vaccines that protect from viral illnesses also reduce transmission of the virus that causes the disease by those who are vaccinated. While it is hoped this will be the case, the scientific community does not yet know if the Pfizer-BioNTech COVID-19 Vaccine will reduce such transmission.
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That said. Results in Germany look like transmission can be stopped but not must:
https://www.rki.de/SharedDocs/FAQ/COVID-Impfen/FAQ_Transmiss...
I depends likely on how good your immune system works. Which is expectable.