The eradication of the <a href="https://en.wikipedia.org/wiki/Smallpox" id="mwATA" rel="mw:WikiLink" title="Smallpox">smallpox</a> <a href="https://en.wikipedia.org/wiki/Virus" id="mwATE" rel="mw:WikiLink" title="Virus">virus</a> is certified, making smallpox the first of only two diseases that have been driven to extinction (with <a href="https://en.wikipedia.org/wiki/Rinderpest" id="mwATI" rel="mw:WikiLink" title="Rinderpest">rinderpest</a> in 2011 being the other).