#COVID-19 strains can be identified by cluster of symptoms, study says
“#COVID-19 strains can be identified by cluster of symptoms, study says” July 18, 2020 | 9:06am | Updated July 18, 2020 | 9:18am Enlarge Image Coronavirus swab samples sit in a testing laboratory in Glasgow, Scotland. Jane Barlow/Pool via Getty Images The coronavirus has six strains and each can be identified by a cluster of…