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Vaccination coverage in India has improved from 44% to 62%, an increase of 19% over a span of 10 y (2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014)(2015)(2016), the inequity continues among the vulnerable people belonging to tribal groups and migrant population. In order to leave no one behind strategy, their vaccination coverage, reasons for low coverage were analyzed from available literary sources through this review article. A systematic search for relevant articles was conducted and articles published in various journals over the past 5 y were included. The vaccine coverage among the vulnerable population ranged from 31% to 89% from various studies. It was found that parents' education status, income of the family and lack of awareness of the schedule were the most important reasons for vaccine hesitancy. Introduction of cash assistance integrated into other national program, digitalizing vaccination cards, involvement of local healers are few strategies suggested in this article.

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Dengue fever, the most notorious of vector borne diseases is under global resurgence. Incidence has increased 30 fold with global expansion. It is thus imperative to review the origin, history and current epidemiology of dengue, its transmission, factors responsible for resurgence, surveillance and the treatment options available. India being hyperendemic, national level comprehensive studies to estimate the true burden of dengue along with its geographical mapping is the need of the hour. Through integrated and combined efforts from various sectors and policy makers, prevention of dengue must be identified and intensified to control further disease transmission as there is no specific antiviral treatment or vaccine against dengue is available in India.