Let's look at the global statistics
Global infections: 139,109,041
Nations with most cases: US (31,495,649), India (14,291,917), Brazil (13,746,681), France (5,248,853), Russia (4,622,464).
Pfizer chief says follow-up shots will probably be needed
A third dose of the coronavirus vaccine will “likely” be needed within a year of vaccination, followed by annual vaccinations, Pfizer’s chief executive said in an interview to a channel. He said that more data and sequencing would be needed to determine a re-vaccination protocol but that “a likely scenario” is “a third dose somewhere between six and 12 months, and from there it would be an annual re-vaccination.” Strengthening the argument, a White House official has also said the US is preparing for the possibility that a booster shot will be needed between nine and 12 months. In February, Pfizer-BioNTech said they planned to test a third shot as well as update their original vaccine. The Food and Drug Administration has said that vaccine developers will not need to conduct lengthy trials for vaccines that have been adapted to protect against variants.
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