【He devoted himself to spreading the use of vaccination.】
The Ito family contained medical doctors, for generation after generation.
Ito went into the private practice of medicine in 1820, when he was 18 years old.
He studied Western medicine at Kyoto (when he was 19 years old) .
He was the first to introduce vaccination against smallpox, in Owari (now the western part of Aichi Prefecture).
Ito published "Igirisukoku Shuto Kisho (Vaccination in England)" in 1841, when he was 39 years old.
In 1850, when he was 48 years old, he made various efforts to promote vaccination against smallpox, such as vaccinating children in the neighborhood by giving them little gifts of money, or setting up a smallpox vaccination station at his home and performing vaccinations on the 8th of every month as Vaccination Day.
It was necessary to keep from running out of vaccine, by continuously inoculating from person to person, without taking a break.
When vaccination just began to be applied, he encouraged people to get vaccinated using various means, such as by giving money to children in poor families or looking for children in distant villages who were willing to get vaccinated. However, once vaccination was recognized to be effective, more and more people were willing to get vaccinated.
He was assigned by the Owari domain when he was 50 years old (in 1852) to supervise the implementation of vaccination so that the Owari people would be vaccinated correctly and appropriately.
In 1862, he was given a reward (5 silver coins) by the lord of the Owari domain, due to his excellent contributions to the spread of vaccination. He was 60 years old.
In 1870, he requested the Owari domain to establish a medical school (the Western Medicine Training Center), when he was 68 years old.
This school was to become the Nagoya University Faculty of Medicine.
・ "Anatomical Tables" is the original text of "Kaitai Shinsho (New Book of Anatomy)", published by Ryotaku Maeno and Genpaku Sugita. It was presented to Ito by Gonnosuke Yoshio, a Japanese-Dutch interpreter, when he was in Nagasaki.
・ "Igirisukoku Shuto Kisho (Vaccination in England)" is a Japanese version translated by Ito from the book written about the method of vaccination against smallpox pioneered by Edward Jenner, an English physician and scientist. Ito translated it from the Chinese version.