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Viral load, also known as viral burden, is a numerical expression of the quantity of virus in a given volume of fluid, including biological and environmental specimens. It is not to be confused with viral titre or viral titer , which depends on the assay.
The COVID-19 virus has not been detected in drinking water. [82] Conventional water treatment (filtration and disinfection) inactivates or removes the virus. [82] COVID-19 virus RNA is found in untreated wastewater, [82] [22] [83] [a] but there is no evidence of COVID-19 transmission through exposure to untreated wastewater or sewerage systems ...
[3] [4] [5] RATs were more sensitive when samples had more viral load, as measured by a low PCR "cycle threshold," and less sensitive when the samples had less viral load. [3] [4] [5] A 2022 study followed 225 adults and children with COVID-19 over 15 days using PCR tests, viral cultures, and home RATs. [29]
But at the beginning of an COVID illness, an at-home antigen may come back negative, even though you may be infectious in that moment and afterward as the viral load increases.
Undetectable = Untransmittable (U=U) is a message used in HIV campaigns. It means that if someone has an undetectable viral load, they cannot sexually transmit HIV to others. [1] U=U is supported by numerous health groups and organisations worldwide, including the World Health Organization (WHO). [2]
[122] [123] Preliminary data from a study with 100,000 volunteers in the UK from May to July 2021, when Delta was spreading rapidly, indicates that vaccinated people who test positive for COVID-19, including asymptomatic cases, have a lower viral load in average. Data from the US, UK, and Singapore indicate that vaccinated people infected by ...
Therefore, someone that's on an antiviral treatment has an undetectable viral load, doing very well on treatment, normal health. As soon as they stop the treatment, within two to three weeks on ...
A term for COVID-19 used by former United States president Donald Trump to emphasize that the pandemic started in China. Comirnaty. Main article: Comirnaty. The commercial name for the FDA approved COVID-19 vaccine from Pfizer, released August 21, 2021. It also has several other names or designators used on the actual vials. Community transmission