28th November 2019


When was the smallpox vaccine discontinued in the United States?

Because of vaccination programs and quarantine regulations, the risk of importation of smallpox into the United States was reduced by the 1960s. As a result, routine vaccinia vaccination was discontinued in 1971 (2).

Beside this, when did they stop giving the smallpox vaccine in Canada?

Although smallpox is a vaccine preventable disease, immunization programs were stopped in Canada in 1972 for infants, in 1977 for health care workers and in 1988 for Canadian Forces. Smallpox is caused by the variola virus.

When was the last case of smallpox in the US?

In Kenya, the last case was on February 5, 1977, in the Mandera District. As of April 14, 1978, no cases of smallpox have been reported to the World Health Organization (WHO) from anywhere in the world since the last case had onset of rash on October 26, 1977, in Merka town, Somalia.

Is smallpox still around today?

Currently, there is no evidence of naturally occurring smallpox transmission anywhere in the world. Although a worldwide immunization program eradicated smallpox disease decades ago, small quantities of smallpox virus officially still exist in two research laboratories in Atlanta, Georgia, and in Russia.