Pfizer/Biontech one. They are both pretty similar in side effect profile, with maybe the Moderna one showing a few more AEs in the trials. Then again, there was a purported cluster of deaths in elderly Norwegians following Pfizer vaccine, and a possible cluster of allergic reactions to Moderna batch in San Diego. The full adverse effect profile of each of these remains to be seen over time. Most of the people I know (esp. elderly) are eager to get the vaccine, with just a few in wait and see mode. Will see how it plays out throughout the US and world in the months to come. Hopefully vaccines will continue to be relatively safe, will provide long lasting protection, will continue to work despite viral mutations, and that in the end the virus will be far less prevalent as more people develop immunity to it.
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