ts off a virus, viral particles tend to linger for some time. These cannot cause infections, but they can trigger a positive test.‚Äù <a href="https://www.statnews.com/2020/04/20/everything-we-know-about-coronavirus-immunity-and-antibodies-and-plenty-we-still-dont/">from STAT News by Andrew Joseph</a>&nbsp;<a href="#fnref41" rev="footnote">&#8617;</a></p>
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	<p>From <a href="https://www.biorxiv.org/content/10.1101/2020.03.13.990226v1.abstract">Bao et al.</a> <em>Disclaimer: This ar