The virus that causes COVID-19 is not the same strain as first emerged from China. A new study shows it has changed slightly in a way that makes it more contagious to humans.
from WebMD Healthhttps://img.webmd.com/dtmcms/live/webmd/consumer_assets/site_images/article_thumbnails/slideshows/how_covid_19_affects_your_body_slideshow/1800x1200_how_covid_19_affects_your_body_slideshow.jpg https://ift.tt/3kAQpx6
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