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Curative changes to only nasal COVID-19 tests July 25, 2021 FacebookTwitterEmail Curative testing site specialist Mercedes Aguirre, inside booth, gives instructions Wednesday, Feb. 3, 2021 to a person for a self-administered COVID-19 coronavirus test on the opening day of Curative's Beacon Hill testing site. Curative operates about a dozen testing sites in the San Antonio area according to the company's website.William Luther, Staff / William Luther As COVID-19 cases begin to climb again and more people get tested around the community, one of the leading companies in testing and vaccinations ...

High individual-level variability in SARS-CoV-2 shedding may explain superspreading Researchers in the United States have provided a high-resolution description of the viral dynamics involved in acute infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) – the agent that causes coronavirus disease 2019 (COVID-19). The team’s daily longitudinal sampling of 60 newly infected individuals revealed that significant person-to-person variation in the shedding of infectious virus contributes to superspreading. Superspreading is the term used to describe a small fraction of i...

Frequent testing improves the detection of SARS-CoV-2 Detecting SARS-CoV-2, the virus that causes COVID-19, improves with regularity of testing, whether using rapid antigen tests or PCR molecular tests. The PCR test is considered the gold standard for diagnosing COVID-19 infection, but cost and infrastructure issues, as well as wait times for PCR results, have limited its use more broadly as a screening tool for asymptomatic people because rapid results are needed to interrupt the chain of transmission. In a highly anticipated study that compares rapid antigen and laboratory PCR approaches fo...