A husband looks to his pregnant wife as ANM (Auxiliary Nurse Midwife) Rupsha Hazara (right) counsels her during a Routine Immunisation and antenatal-care clinic that operates 6 days a week at the Kishanganj District hospital. The measles vaccine is administered to all children at 9-12 months of age as part of the Routine Immunisation schedule. It is this program of ongoing vaccination for all children that will sustain the efficacy of the measles vaccine following Bihar's SIA (Supplementary Immunisation Activity)...Supplementary Immunisation Activity (SIA) in Bihar is scheduled for December 3rd to 23rd. It is estimated that 33% of children aged 9 months to 10 years in Kishanganj district are currently not vaccinated against measles. ..It is estimated that 90,000 Indian children die from measles every year in India which accounts for 67% of all measles deaths worldwide. 1.63% of measles infections in India results in the death of a child. Death results from one of a number of complications including diarrhoea, respiratory infection and encephalitis. Deaths are more likely to occur in malnourished children living in unsanitary conditions. The measles vaccine is included as part of the Routine Immunisation (RI) offered by the Indian Government to all Indian children in their first year. But RI fails to capture all children. In 14of India's states, including Gujarat and Bihar, more than 20% of infants are not vaccinated against measles...In response, the Indian Government, with cooperation from several outside agencies including UNICEF and the WHO, has embarked on a program of Supplementary Immunisation Activity (SIA) in these fourteen states. Surveys record all children aged 9 months to 10 years. These children are invited by the Government to be vaccinated during a 3-4 week-long SIA. Vaccinations are administered in fixed locations including schools, Anganwadi (pre-school) centres and Public Health Centres. Mobile units are also deployed to reach children from migrant