tine, and none of their household contacts acquired secondary infections.&quot;</p>

	<p>So that means &quot;true asymptomatics&quot; are rare, and catching the disease from a true asymptomatic may be even rarer!</p>
	</li>

	<li id="fn30">
	<p>From the same Oxford study that first recommended apps to fight COVID-19: <a href="https://science.sciencemag.org/content/early/2020/04/09/science.abb6936/tab-figures-data">Luca Ferretti &amp; Chris Wymant et al</a> See Figure 2. Assuming R<sub>0</sub> = 2.0, they fo