Chicken pox4/30/2023 ![]() People all over the world get chicken pox, though climate affects the distribution of the virus among age groups. The serum was approved for use in Japan and Korea in 1988 before being adopted in the US in 1995. In 1972, nearly 100 years later, Takahashi isolated the virus and developed the first chicken pox vaccine. Though the first official description of chicken pox appeared in the 1500s and is attributed to Giovanni Filippo, it wasn't until 1875 that the condition was discovered to be caused by an infectious agent. It wasn't until 1767 that another English doctor, William Heberden, discovered that each was a separate disease with distinct pathology. In the 1600s, English physician Richard Morton assumed that the two were the same disease and that chicken pox was simply a milder form. ![]() So named because it makes the skin look like that of a plucked chicken, the virus was often confused with smallpox until the 1900s. It's thought that chicken pox may have originated in Africa before spreading to other areas of the world. However, chicken pox may also occur in teens, adolescents and adults and is characterized by the appearance of a rash consisting of itchy, blistery bumps that spread across the body over the course of the infection. It's usually thought of as a childhood disease since children account for about 90 percent of chicken pox cases. Chicken pox, also called varicella, is an infection caused by the varicella zoster virus.
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