age=int-4b&format=calc" width="285" height="230"></iframe>
	</div>

	<p>(Note: this calculator pretends the vaccines are 100% effective. Just remember that in reality, you&#39;d have to compensate by vaccinating <em>more</em> than &quot;herd immunity&quot;, to <em>actually</em> get herd immunity)</p>

	<p>Okay, enough talk. Here&#39;s a simulation of:</p>

	<ol>
	<li>A few-month lockdown, until we can...</li>
	<li>Switch to &quot;Test, Trace, Isolate&quot; until we can...</li>
	<li>Vaccinate enough people, 