Varicella vaccine Varicella vaccine Varicella vaccine, also known as chickenpox vaccine, is a vaccine that protects against chickenpox. One dose of vaccine prevents 95% of moderate disease and 100% of severe disease. Two doses of vaccine are more effective than one. If given to those who are not immune within five days of exposure to chickenpox it prevents most cases of disease. Vaccinating a large portion of the population also protects those who are not vaccinated. It is given by injection just under the skin. The World Health Organization (WHO) recommends routine vaccination only if a country can keep more than 80%
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