id="fn20">
	<p>‚ÄúAbsent other interventions, a key metric for the success of social distancing is whether critical care capacities are exceeded. To avoid this, prolonged or intermittent social distancing may be necessary into 2022.‚Äù <a href="https://science.sciencemag.org/content/early/2020/04/14/science.abb5793">Kissler and Tedijanto et al</a>&nbsp;<a href="#fnref20" rev="footnote">&#8617;</a></p>
	</li>

	<li id="fn21">
	<p>See <a href="https://journals.sagepub.com/doi/abs/10.1177/1745691614568