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Plague vaccine is a vaccine used against Yersinia pestis to prevent the plague. [1] Inactivated bacterial vaccines have been used since 1890 but are less effective against the pneumonic plague , so live, attenuated vaccines and recombinant protein vaccines have been developed to prevent the disease.
Smallpox was an infectious disease caused by variola virus (often called smallpox virus), which belongs to the genus Orthopoxvirus. [7] [11] The last naturally occurring case was diagnosed in October 1977, and the World Health Organization (WHO) certified the global eradication of the disease in 1980, [10] making smallpox the only human disease to have been eradicated to date.
The smallpox vaccine is used to prevent smallpox infection caused by the variola virus. [10] It is the first vaccine to have been developed against a contagious disease. In 1796, British physician Edward Jenner demonstrated that an infection with the relatively mild cowpox virus conferred immunity against the deadly smallpox virus.
This is an accepted version of this page This is the latest accepted revision, reviewed on 17 December 2024. Disease caused by Yersinia pestis bacterium This article is about the disease caused by Yersinia pestis. For other uses, see Plague. Medical condition Plague Yersinia pestis seen at 200× magnification with a fluorescent label. Specialty Infectious disease Symptoms Fever, weakness ...
The bubonic plague is a devastating disease that kills your body from the inside out. 75 million people, including over half of Europe's population, were affected by the disease in the 14th century.
Mortality from bubonic plague today is between 1% and 10%, whereas septicemic plague may have mortality as high as 50% — and if untreated, it's over 90%. Fleas can spread other diseases too
How do you treat the plague? The plague was never eradicated, but we've gotten better at preventing its spread and treating it in humans. When treated early with antibiotics, the plague can be cured. The key is to get to a doctor fast -- otherwise the plague can be deadly. And, as the old adage goes, prevention is better than a cure.
Human infectious diseases may be characterized by their case fatality rate (CFR), the proportion of people diagnosed with a disease who die from it (cf. mortality rate).It should not be confused with the infection fatality rate (IFR), the estimated proportion of people infected by a disease-causing agent, including asymptomatic and undiagnosed infections, who die from the disease.