 <translate> Smallpox vaccine, the first successful vaccine to be developed, was introduced by Edward Jenner in 1796. He followed up his observation that milkmaids who had previously caught cowpox did not later catch smallpox by showing that inoculated cowpox protected against inoculated smallpox. The word "vaccine" is derived from Variolae vaccinae (i.e. smallpox of the cow), the term devised by Jenner to denote cowpox and used in the long title of his An enquiry into the causes and effects of Variolae vaccinae, known by the name of cow pox. Vaccination, the term which soon replaced cowpox inoculation and vaccine inoculation, was first used in print by Jenner's friend, Richard Dunning in 1800. Initially, the terms vaccine / vaccination referred only to smallpox, but in 1881 Louis Pasteur proposed that to honour Jenner the terms be widened to cover the new protective inoculations being introduced.

Answer this question based on the passage: who discovered the vaccine for the prevention of small pox? Okie... think carefully first, then make a decision: <yor> Ọdún 1796 ni Edward Jenner ṣe oògùn àjẹsára àrùn olóde, ìyẹn oògùn àjẹsára àkọ́kọ́ tó kẹ́sẹ járí. Ó tún sọ pé àwọn obìnrin tó ń tọ́mọ lọ́wọ́ tí wọ́n ti kó àrùn àìsàn màlúù tẹ́lẹ̀ kò tún ní kó àrùn àìsàn náà nígbà tó yá, ó fi hàn pé àìsàn àìsàn àìsàn màlúù tí wọ́n ti fi abẹ́rẹ́ àjẹsára ṣe kò ní jẹ́ kí àrùn àìsàn àìsàn àìsàn àìsàn náà kọ lù wọ́n. Ọ̀rọ̀ náà "àjẹsára" wá láti inú Variolae vaccinae (ìyẹn ààrùn kòkòrò màlúù), ìyẹn ọ̀rọ̀ tí Jenner lò láti fi ṣàpèjúwe ààrùn kòkòrò màlúù, ó sì lò ó nínú àkọlé gígùn ìwé rẹ̀ tó pè ní An enquiry into the causes and effects of Variolae vaccinae, tí wọ́n ń pè ní ààrùn kòkòrò màlúù. Ọ̀rẹ́ Jenner, Richard Dunning ló kọ́kọ́ lo ọ̀rọ̀ náà, vaccination, èyí tó wá rọ́pò ọ̀rọ̀ náà, cowpox inoculation àti vaccine inoculation, lọ́dún 1800. Lákọ̀ọ́kọ́, àwọn ọ̀rọ̀ náà, abẹ́rẹ́ àjẹsára/abẹ́rẹ́ àjẹsára ń tọ́ka sí àrùn olóde nìkan, àmọ́ lọ́dún 1881, Louis Pasteur dábàá pé kí àwọn ọ̀rọ̀ náà lè tọ́ka sí àwọn abẹ́rẹ́ àjẹsára ààbò tuntun tí wọ́n ń ṣe.  Dáhùn ìbéèrè yìí níbàámu pẹ̀lú àyọkà náà: ta ló ṣàwárí abẹ́rẹ́ àjẹsára tó ń dènà àrùn olóde? Okie... ronú dáadáa kó o tó ṣe ìpinnu: 