Tag Archives: Pfizer

Covid-19 booster shots and the Delta variant

Switzerland is now offering a Covid-19 booster shot to to the 65+ and at-risk who has had their two Covid-19 vaccinations at least six months ago. It may soon be extended to all adults. I had my third shot last … Continue reading

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Vaccination and the COVID Delta variant

The COVID Delta variant (B.1.617.2), which started spreading widely in India last October, is highly transmissible and might cause more severe illness and hence death. It has spread to many countries and is now the dominant strain in the UK. … Continue reading

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