Although reinfections by the virus occur, these reinfections usually do not cause any symptoms.Since its introduction in 1995, the varicella vaccine has resulted in a decrease in the number of cases and complications from the disease. It protects about 70–90 percent of people from disease with a greater benefit for severe disease. Routine immunization of children is recommended in many countries. Immunization within three days of exposure may improve outcomes in children. Treatment of those infected may include calamine lotion to help with itching, keeping the fingernails short to decrease injury from scratching, and the use of paracetamol (acetaminophen) to help with fevers. For those at increased risk of complications, antiviral medication such as aciclovir are recommended.Chickenpox occurs in all parts of the world. In 2013 there were 140 million cases of chickenpox and shingles worldwide. Before routine immunization the number of cases occurring each year was similar to the number of people born. Since immunization the number of infections in the United States has decreased nearly 90%. In 2015 chickenpox resulted in 6,400 deaths globally – down from 8,900 in 1990. Death occurs in about 1 per 60,000 cases. Chickenpox was not separated from smallpox until the late 19th century. In 1888 its connection to shingles was determined. The first documented use of the term chicken pox was in 1658. Various explanations have been suggested for the use of "chicken" in the name, one being the relative mildness of the disease.
Pagets disease of bone was originally termed osteitis deformans, because it was thought to involve an inflammatory process, which is implied by the suffix -itis. Now, that term is considered technically incorrect, and the preferred term is osteodystrophia deformans. Society and culture
Ludwig van Beethoven is speculated to have had Pagets disease based on autopsy description, and which may have contributed to his well-known deafness. Retired Boston Red Sox center fielder Dom DiMaggio had Pagets disease and served as a member of the board of directors of the Paget Foundation. References
External links
Pagets Disease of Bone Overview - NIH Osteoporosis and Related Bone Diseases ~ National Resource Center