Edward Jenner spread around Europe and was used "en masse" in the Spanish Balmis Expedition (1803–1806), a three-year-long mission to the Americas, the Philippines, Macao, China, led by Dr. Francisco Javier de Balmis with the aim of giving thousands the smallpox vaccine. The expedition was successful, and Jenner wrote, "I don’t imagine the annals of history furnish an example of philanthropy so noble, so extensive as this." Napoleon, who at the time was at war with Britain, had all his French troops vaccinated, awarded Jenner a medal, and at the request of Jenner he released two English prisoners of war and permitted
Frank Jenner into his home for tea and told him about the gospel. Jenner converted to Christianity and, when he went home, told Jessie that she was a sinner bound for hell and therefore in need of salvation. According to Wilson's biography of Jenner, Jessie thought that Jenner had become manic or insane. They had a young daughter named Ann by this point and Jenner was gambling so much that he was not providing for his family. For both of these reasons, Jessie left Jenner and moved to Corowa to work on a farm, taking Ann with her. She said that she