With more testing happening at home and the CDC focusing on hospitalization, the best place to spot a looming surge might be in the sewer.
COVID-19 cases are relatively low across the country, with even fewer people being hospitalized and dying. But the situation remains uncertain. In the past, new variants have caused sharp surges in the U.S. with little warning, and case numbers usually lag behind when a person was actually infected by one or two weeks. With the popularity of at-home tests, many cases are never even reported to public health officials.
It may seem that wastewater is a strange place to look for SARS-CoV-2, since we think of COVID as mainly a respiratory virus. However, most people infected with COVID-19 shed virus in their stools, no matter the severity of infection. It happens even if they don’t have gastrointestinal symptoms, or even any symptoms at all, said
, the assistant medical director of the clinical microbiology laboratory at the University of California Los Angeles.
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