<a href="https://en.wikipedia.org/wiki/Ali_Maow_Maalin" id="mwzg" rel="mw:WikiLink" title="Ali Maow Maalin">Ali Maow Maalin</a>, the last natural case of <a href="https://en.wikipedia.org/wiki/Smallpox" id="mwzw" rel="mw:WikiLink" title="Smallpox">smallpox</a>, develops a rash in Somalia. The <a href="https://en.wikipedia.org/wiki/World_Health_Organization" id="mw0A" rel="mw:WikiLink" title="World Health Organization">WHO</a> and the <a href="https://en.wikipedia.org/wiki/Centers_for_Disease_Control_and_Prevention" id="mw0Q" rel="mw:WikiLink" title="Centers for Disease Control and Prevention">CDC</a> consider this date to be the anniversary of the <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Eradication_of_smallpox" id="mw0g" rel="mw:WikiLink" title="Eradication of smallpox">eradication of smallpox</a>, the most spectacular success of <a href="https://en.wikipedia.org/wiki/Vaccination" id="mw0w" rel="mw:WikiLink" title="Vaccination">vaccination</a>.<sup about="#mwt35" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-5"}}' id="cite_ref-5" rel="dc:references" typeof="mw:Extension/ref"><a href="./October_26#cite_note-5" id="mw1A" style="counter-reset: mw-Ref 5;"><span class="mw-reflink-text" id="mw1Q">[5]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-5"><cite about="#mwt32" class="citation magazine cs1" id="CITEREFThompson2022">Thompson, Derek (12 December 2022). <span class="id-lock-subscription" id="mwBzk" title="Paid subscription required"><a class="external text" href="https://www.theatlantic.com/magazine/archive/2023/01/science-technology-vaccine-invention-history/672227/" id="mwBzo" rel="mw:ExtLink nofollow">"Why the Age of American Progress Ended"</a></span>. <i id="mwBzs">The Atlantic</i>. Vol.<span id="mwBzw" typeof="mw:Entity"> </span>331, no.<span id="mwBz0" typeof="mw:Entity"> </span>1. p.<span id="mwBz4" typeof="mw:Entity"> </span>30. <a class="mw-redirect" href="./ISSN_(identifier)" id="mwBz8" rel="mw:WikiLink" title="ISSN (identifier)">ISSN</a><span id="mwB0A" typeof="mw:Entity"> </span><a class="external text" href="https://www.worldcat.org/issn/1072-7825" id="mwB0E" rel="mw:ExtLink nofollow">1072-7825</a><span class="reference-accessdate" id="mwB0I">. Retrieved <span class="nowrap" id="mwB0M">22 December</span> 2022</span>.</cite><span about="#mwt32" class="Z3988" id="mwB0Q" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=The+Atlantic&amp;rft.atitle=Why+the+Age+of+American+Progress+Ended&amp;rft.volume=331&amp;rft.issue=1&amp;rft.pages=30&amp;rft.date=2022-12-12&amp;rft.issn=1072-7825&amp;rft.aulast=Thompson&amp;rft.aufirst=Derek&amp;rft_id=https%3A%2F%2Fwww.theatlantic.com%2Fmagazine%2Farchive%2F2023%2F01%2Fscience-technology-vaccine-invention-history%2F672227%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOctober+26"></span></span>