Chapter II Measles

Chapter II Measles

  • Submitted By: Meg-Meg
  • Date Submitted: 08/20/2015 4:45 AM
  • Category: Science
  • Words: 1847
  • Page: 8


Measles is an acute viral infectious disease. References to measles can be found from as early as the 7th century. The disease was described by the Persian physician Rhazes in the 10th century as “more dreaded than smallpox.” In 1846, Peter Panum described the incubation period of measles and lifelong immunity after recovery from the disease. Enders and Peebles isolated the virus in human and monkey kidney tissue culture in 1954. Before a vaccine was available, infection with measles virus was nearly universal during childhood, and more than 90% of persons were immune by age 15 years. Measles is still a common and often fatal disease in developing countries. The World Health Organization estimates there were 164,000 deaths globally from measles in 2008.

Image 2.1 Measles Virus

2.2 History, Prevention and Treatment
In the 9th century, a Persian doctor published one of the first written accounts of measles disease. Francis Home, a Scottish physician, demonstrated in 1757 that measles is caused by an infectious agent in the blood of patients. In 1912, measles became a nationally notifiable disease in the United States, requiring U.S. healthcare providers and laboratories to report all diagnosed cases. In the first decade of reporting, an average of 6,000 measles-related deaths were reported each year. In the decade before 1963 when a vaccine became available, nearly all children got measles by the time they were 15 years of age. It is estimated 3 to 4 million people in the United States were infected each year. Also each year an estimated 400 to 500 people died, 48,000 were hospitalized, and 4,000 suffered encephalitis (swelling of the brain) from measles.
Measles can be prevented with the MMR (measles, mumps, and rubella) vaccine. One dose of MMR vaccine is about 93% effective at preventing measles if exposed to the virus, and two doses are about 97% effective.
Measles vaccine is usually...

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