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The reduction in transmission of SARS-CoV-2 associated with COVID-19 vaccination was smaller for the delta variant versus the alpha variant.
A longer duration of exposure and higher cumulative exposure over an entire working life may increase the risk for cognitive impairment.
The authors say that screening based on individual life expectancy, rather than age, may improve screening selection and value.
Vaccine protection against SARS-CoV-2 infection declined; protection remained higher against hospitalization, death.
Even though fully vaccinated people still may get infected, infections tend to have mild or no symptoms.
Contrast sensitivity impairment may affect cognitive decline across more domains than other vision measures.
So far, existing vaccines have proven effective against prior coronavirus variants, including the delta variant.
However, planned mask breaks may help with mask-related breathing problems tied to longer mask use.
A disease flare requiring treatment was reported in 11% following two-dose mRNA SARS-CoV-2 vaccination, with no reports of severe flare.
Consumers of seafood purchased in a local northeastern US market may be exposed to potentially risky PFAS concentrations.