Manchurian plague
... that the origins of the modern hazmat suit can be traced to the use of PPE during the Manchurian plague of 1910–1911?
... that the origins of the modern <a href="./Hazmat_suit" id="mwCZ8" rel="mw:WikiLink" title="Hazmat suit">hazmat suit</a> can be traced to the use of <a href="./Personal_protective_equipment" id="mwCaA" rel="mw:WikiLink" title="Personal protective equipment">PPE</a> during the <b id="mwCaE"><a href="./Manchurian_plague" id="mwCaI" rel="mw:WikiLink" title="Manchurian plague">Manchurian plague</a></b> of 1910–1911?