Nation 8 strains of the coronavirus are circling the globe. Here’s what clues they’re giving scientists. March 28, 2020March 28, 2020 Elizabeth Weise, USA TODAY Comments Off on 8 strains of the coronavirus are circling the globe. Here’s what clues they’re giving scientists. Scientists sequenced the genomes of eight coronavirus strains circling the globe providing hints about the effectiveness of efforts to halt the virus.