Nope, no vax ever made was projected at 100% efficacy and, considering Covid variants and age differences, it's not surprising that boosters are recommended to combat waning efficacy.
You are one lazy, imprecise, mfr.
Google the question: what was the clinical trial efficacy of the 3 covid vaccines?
No, you were told they were 100% effective
According to the CDC, based on evidence from clinical trials in people 16 years and older, the Pfizer-BioNTech vaccine was 95% effective at preventing laboratory-confirmed infection with the virus that causes COVID-19 in people who received two doses and had no evidence of being previously infected.
- Based on evidence from clinical trials, in people aged 18 years and older, the Moderna vaccine was 94.1% effective at preventing laboratory-confirmed COVID-19 infection in people who received two doses and had no evidence of being previously infected.
The J&J/Janssen COVID-19 Vaccine was 66.3% effective in clinical trials (efficacy) at preventing laboratory-confirmed COVID-19 infection in people who received the vaccine and had no evidence of being previously infected. People had the most protection 2 weeks after getting vaccinated.
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