To better understand COVID-19's spread during the pandemic, public health officials expanded wastewater surveillance.
Apr 3 2024American Chemical Society To better understand COVID-19's spread during the pandemic, public health officials expanded wastewater surveillance. These efforts track SARS-CoV-2 levels and health risks among most people, but they miss people who live without shelter, a population particularly vulnerable to severe infection.
In recent years, testing untreated wastewater for SARS-CoV-2 incidence and dominant viral variants, as well as other pathogens, has been vital to helping public health officials determine infectious disease transmission in local communities. Yet, this monitoring only captures information on viruses shed from human feces and urine in buildings that are connected to local sewage infrastructure.
Using quantitative polymerase chain reaction, the researchers identified SARS-CoV-2 RNA in more than 25% of the samples tested from two flood-control channels. The highest detection frequency over the study period aligned with Las Vegas' first wave of omicron variant infections, as confirmed through parallel testing at a local wastewater treatment plant.
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