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Can we fight SARS-CoV-2 with SARS-CoV-2?
poem by Augustus De Morgan, “Great fleas have little fleas upon their backs to bite ’em, And little fleas have lesser fleas, and so ad infinitum.”It seems this is true even for viruses — the smallest of all parasites — which in turn have smaller viruses that parasitize them.Biologists at Pennsylvania State University (Penn State) in University Park have exploited this universal law of nature to create a parasite of SARS-CoV-2 that they believe could treat COVID-19.Coronaviruses, such as SARS-CoV-2, replicate by injecting their molecular blueprint, or genome — which is a single strand of RNA — into a host cell.The infected cell copies the viral genome and churns out the proteins that it encodes, which are then used to build new virus