Varicella vaccine health system. In the United States it costs between 100 and 200 USD. Varicella vaccine is 70% to 90% effective for preventing varicella and more than 95% effective for preventing severe varicella. Follow-up evaluations have taken place in the United States of children immunized that revealed protection for at least 11 years. Also, studies were conducted in Japan which indicated protection for at least 20 years. People who do not develop enough protection when they get the vaccine may develop a mild case of the disease when in close contact with a person with chickenpox. In these cases, people show
National Centre for Disease Control centers in India, which started surveillance of HIV infection in the country. On 30 July 2009, it was named as National Centre for Disease Control. NCDc has eight divisions under it namely Doctors from NCDC had been previously summoned to investigate potential outbreaks of diseases including suspected cases of Pneumonic plague in Punjab in 2002, SARS outbreaks in 2004, meningitis outbreak in Delhi in 2005, and avian influenza in 2006. The NCDC in collaboration with the Centers for Disease Control and Prevention has set up the Global Disease Detection Regional Center in New Delhi, India. This will lead to long-term