Satrio
... that Satrio used water buffaloes to vaccinate 240,000 people against smallpox?
... that <b id="mwA98"><a href="./Satrio" id="mwA-A" rel="mw:WikiLink" title="Satrio">Satrio</a></b> used <a href="./Water_buffalo" id="mwA-E" rel="mw:WikiLink" title="Water buffalo">water buffaloes</a> to vaccinate 240,000 people against <a href="./Smallpox" id="mwA-I" rel="mw:WikiLink" title="Smallpox">smallpox</a>?