ne of a typical COVID-19 infection<sup id="fnref22"><a href="#fn22" rel="footnote">22</a></sup>:</p>

	<p><img src="pics/timeline1.png" alt=""></p>

	<p>If cases only self-isolate when they know they&#39;re sick (that is, they feel symptoms), the virus can still spread:</p>

	<p><img src="pics/timeline2.png" alt=""></p>

	<p>And in fact, 44% of all transmissions are like this: <em>pre</em>-symptomatic! <sup id="fnref23"><a href="#fn23" rel="footnote">23</a></sup></p>

	<p>But, if we find <em>and quarantine<