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. 2023 Feb 23;30(5):923–931. doi: 10.1093/jamia/ocad029

Table 2.

Dates and events with the greatest number of positive tweets around the 4 peaks

Peak Date Positive tweet counts Events
1st December 14, 2020 20 681 Sandra Lindsay, a nurse in New York, became the first person in the United States to get the COVID-19 shot.
2nd March 2, 2021 17 788 Single-dose vaccine from Johnson & Johnson received FDA approval in the United States.
3rd May 13, 2021 20 367 The Pfizer COVID-19 vaccine was authorized for adolescents 12–15 years old.
4th August 23, 2021 31 987 FDA approved first COVID-19 vaccine.