Study: A Common Cold Virus May Help Fight COVID-19

According to a new study, performed by scientists from the MRC-University of Glasgow Centre for Virus Research in the United Kingdom, a virus that causes the common cold can trigger an innate immune response against SARS-CoV-2, the virus that causes COVID-19.Study A Common Cold Virus May Help Fight COVID-19

In the laboratory, the researchers infected cultures of human respiratory cells with either SARS-CoV-2, an HRV, or both viruses at the same time. The cultures closely mimicked the outer layer the epithelium of the airways of the lungs.

SARS-CoV-2 steadily multiplied in the cells that the team had infected with this virus alone. However, in cells also infected with HRV, the number of SARS-CoV-2 virus particles declined rapidly until they were undetectable just 48 hours after the initial infection.

Senior study author Prof. Pablo Murcia says: “Our research shows that human rhinovirus triggers an innate immune response in human respiratory epithelial cells, which blocks the replication of the COVID-19 virus, SARS-CoV-2.”

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