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A comment on Pfizer vaccine appears effective against mutation in new coronavirus variants. Parent comment

Re:Pfizer vaccine appears effective against mutation in new ... by iso1210 on Saturday January 09, 2021 @01:14PM (#25702860)
Yellow fever days? You mean before international travel mostly stopped?

I have to show my yellow piece of paper with the stamp from my jab when I travel to several countries, most recently Nigeria

[ Parent | on HN ]
Re:Pfizer vaccine appears effective against mutation in new ... by selimthegrim on Saturday January 09, 2021 @02:40PM (#25703848)
In antebellum New Orleans, people would often try to get infected with yellow fever as soon as they got here to get it over with so if they survived they could claim immunity.
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