Virology in order to immunize others. In 1717 Lady Mary Wortley Montagu observed the practice in Istanbul and attempted to popularize it in Britain, but encountered considerable resistance. In 1796 Edward Jenner developed a much safer method, using cowpox to successfully immunize a young boy against smallpox, and this practice was widely adopted. Vaccinations against other viral diseases followed, including the successful rabies vaccination by Louis Pasteur in 1886. The nature of viruses however was not clear to these researchers. In 1892, the Russian biologist Dmitry Ivanovsky used a Chamberland filter to try to isolate the bacteria that caused tobacco mosaic
1978 smallpox outbreak in the United Kingdom had told Bedson that the physical facilities at the laboratory did not meet WHO standards, but had nonetheless only recommended a few changes in laboratory procedure. Bedson misled the WHO about the volume of work handled by the laboratory, telling them that it had progressively declined since 1973, when in fact it had risen substantially as Bedson tried to finish his work before the laboratory closed. Shooter also found that while Parker had been vaccinated, it had not been done recently enough to protect her against smallpox. A Foreword by the Secretary of State for Social Services, Patrick Jenkin, noted