Tag Archives: vaccine

Covid XBB.1.5 (the Kraken Wakes*)

Posted on February 16, 2023 by colinmathers

A new and highly transmissible subvariant of the Omicron Covid18 variant, XBB.1.5, also nicknamed the Kraken, was first identified in the USA in late October 2022. At the beginning of December, Omicron sub variant XBB.1.5 made up just 1.3 per … Continue reading →

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Is the Covid-19 bivalent booster worthwhile?

Posted on February 3, 2023 by colinmathers

Omicron and subvariants have become the dominant form of Covid-19 circulating in most parts of the world. So-called bivalent mRNA vaccines became available from both Pfizer and Moderna in August or September 2022. Intended for booster vaccination, they contain mRNA … Continue reading →

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Vaccination and the COVID Delta variant

Posted on June 30, 2021 by colinmathers

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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What are the risks of the AstraZeneca vaccine?

Posted on April 11, 2021 by colinmathers

Currently, several EU countries are suspending use of the AstraZeneca vaccine, or recommending it not be used in various younger age groups, due to reports of blood clot risks. Australia has decided to delay rollout of vaccination for younger adults … Continue reading →

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