Tests miss COVID cases for a variety of reasons, meaning someone who tests negative may still have the disease.
from WebMD Healthhttps://img.webmd.com/dtmcms/live/webmd/consumer_assets/site_images/article_thumbnails/other/covid_19_testing_four_other/1800x1200_covid_19_testing_four_other.jpg https://ift.tt/2SkH54G
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