Last fall several studies discovered that the efficiency of commonly used COVID-19 vaccines vanes pretty much to nothing within about a half year. In light of that, boosters were suggested - even though their safety and efficacy as well as potentially damaging cumulative effects were questioned by some publicly recognized experts, such as those working for the European Medicines Agency.
New data now suggests that whatever protection boosters may offer wears out within a month. Hence boosters would need yo be offered on the monthly basis, if they were to be used at all.
In this author's opinion, even if you choose to view these vaccine technologies as safe, you would need to be delusional to view them as effective.
References
US COVID vaccines: their power fleeting, their usefulness limited
ICYMI: You need to be boosted every 30 days to stay "protected"
Steve Kirsch, 8 April 2022
European Medicines Agency has expressed concerns about repeated COVID-19 booster shots
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