Diseases, Conditions, Syndromes

Real-world, rapid COVID-19 testing shows few false positives

(HealthDay)—In a Canadian employer screening program, the overall rate of false-positive results using rapid antigen test screens for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is very low, according to ...

Diseases, Conditions, Syndromes

Wearable air sampler assesses personal exposure to SARS-CoV-2

Masks, social distancing, proper hygiene and ventilation can help reduce the transmission of COVID-19 in public places, but even with these measures, scientists have detected airborne SARS-CoV-2 in indoor settings. Now, researchers ...

Diseases, Conditions, Syndromes

BNT162b2 still effective, but less so, against Omicron

(HealthDay)—The effectiveness of two doses of BNT162b2 was maintained, albeit at a reduced level, during an omicron variant proxy period in South Africa, according to a letter to the editor published online Dec. 29 in the ...

Diseases, Conditions, Syndromes

For earlier variants, severe COVID-19 less likely at reinfection

(HealthDay)—Compared with primary infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), reinfections have 90 percent lower odds of severe, critical, or fatal disease based on data for the variants ...

Diseases, Conditions, Syndromes

Testing for COVID-19 at home

The emergence of a new COVID-19 variant, omicron, has heightened safety protocols and plans to help people stay safe from illness as researchers and experts learn more about the newest strain of SARS-CoV-2. This includes ...

Diseases, Conditions, Syndromes

Prior SARS-CoV-2 infection ups protection for vaccinated

(HealthDay)—For individuals vaccinated with mRNA COVID-19 vaccines, prior severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection is associated with a lower risk for breakthrough infection, according to a ...

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