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Originally Posted by louie aguiar
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Maybe a little. There's also peer reviewed studies out there that state the Pfizer vaccine is still highly effective in preventing even symptomatic cases.
Take it with a grain of salt.
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The study had its limitations; the sample size wasn’t representative of the U.S. population, and authors said other factors could've impacted the findings regarding reduced vaccine effectiveness (like "waning immunity over time, the dynamic landscape of SARS-CoV-2 variants, or other factors that were not considered here.")
"Our observational study suggests that while both mRNA COVID-19 vaccines strongly protect against infection and severe disease, there are differences in their real-world effectiveness relative to each other and relative to prior months of the pandemic," study authors concluded.
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