Coverage survey of Measles-Rubella mass vaccination campaign in a rural area in Tamil Nadu

Background: In Tamil Nadu, where health indicators are above the national average and routine immunization coverage is >95%, the tepid response to Measles-Rubella (MR) mass vaccination campaign was unexpected. Several parents refused MR vaccine for their children, due to false news claiming inefficiency and adverse effects due to the vaccine. Aim: This study was conducted to assess the Measles-Rubella (MR) mass vaccination coverage and to know the motivating factors and barriers for vaccination. Methods: A cross-sectional study was conducted in a rural area immediately following the mass vaccination campaign. Using a pre-tested structured questionnaire, data was collected on awareness of MR vaccination campaign, MR vaccination status, motivating factors and reasons for non-acceptance of the vaccine. Results: Vaccine coverage among the 616 children surveyed was 80.2%. Factors that motivated acceptance of vaccine among the immunized participants were easy access to immunization (85%), support and motivation from school teachers (41.1%) and community level health workers (25.5%). Barriers reported among the unimmunized participants were rumours of adverse effects (47.5%), fear of adverse effects (53.3%), and no faith in immunization (18.9%). Risk factors for vaccine refusal included female child (OR = 1.7, 95%CI = 1.1-2.6), Children not attending school (OR = 3.32, 95%CI = 2.1-5.1), Mothers with higher education (OR = 4.3, 95%CI = 1.2-15.2). Conclusion: An effective communication strategy addressing the needs and concerns of the public/parents should be in place and started early on before initiation of the mass vaccination programme.