![](http://www.alamy.com/thumbs/6/C2C6A968-C97C-4ABF-A135-1542C53F9936/2H91P0D.jpg)
Nasopharyngeal swab. Covid 19 Ag test.
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Photo credit: © Michal Moravcik / Alamy / Afripics
License: Royalty Free
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Keywords: ag, corona, covid, covid-19, disease, epidemic, infection, isolated, laboratory, medical, medicine, nasal, nasopharyngeal, pandemic, sars, sars--2, swab, test, virus