How did Lady Mary Wortley Montagu introduce smallpox inoculation to England?

Lady Mary Wortley Montagu was instrumental in introducing the practice of variolation to England in 1721–22.12

While living in the Ottoman Empire with her husband, the British ambassador, she observed the effectiveness of the procedure—which involved infecting a healthy person with material from the sores of someone suffering from a mild case of smallpox—as a precaution against the disease. Having previously suffered from a severe attack of smallpox herself, she became a strong advocate for the practice and promoted its use upon her return to England.13

It is important to note that while variolation helped reduce deaths, it remained controversial because it carried the risk of the recipient developing a full-blown case of the disease and spreading it to others. This practice was eventually replaced by Edward Jenner’s discovery of vaccination using cowpox, which offered a safer method of immunization.145