LMAO! NYT: Third dose of Pfizer vaccine enhance protection for 12 days September 17, 2021September 17, 2021 by IWB Sharing is Caring! Booster shots every 12 days indefinitely, lmao — mike's hard Lemonade sommelier (@theoryhoe) September 15, 2021 See also A conventional C-O-V-I-D vaccine developed in Texas was basically ignored in the US See also The FDA doesn't know how long COVID vaccine protection lasts. But the naturally immune are being encouraged to get vaccinated because experts don't know how long natural immunity lasts. That doesn't make any sense.