LOS ANGELES, April 7 (Xinhua) -- Although COVID-19 cases have fallen from a pandemic-high reported in January 2022, there is some evidence that the virus may be on the rise again, said a recent report of Bangor Daily News.
Surveillance data showed there had been an increase in viral RNA in wastewater over the past 15 days, the report cited data from the U.S. Centers for Disease Control and Prevention.
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