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ORIGINAL ARTICLE
Year : 2017  |  Volume : 10  |  Issue : 1  |  Page : 76-81

Coverage evaluation survey of the pentavalent vaccine using Global Positioning System technology and Google Earth in a rural area near Bangalore


Department of Community Medicine, Kempegowda Institute of Medical Sciences, Bangalore, India

Correspondence Address:
Dr. N R Ramesh Masthi
Department of Community Medicine, Kempegowda Institute of Medical Sciences, Bangalore
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1755-6783.205544

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Introduction: The government of Karnataka has introduced a new vaccine, i.e., pentavalent vaccine (PVV) in the Universal Immunization Programme (UIP) schedule from 1st April, 2013. There are no published studies on vaccination coverage of this new vaccine. Objectives: 1. To assess the coverage of PVV of infants in a rural area. 2. To find out the reasons for immunization failure. 3. To describe the use of Global Positioning System (GPS) technology and Google Earth as new tools for spatial mapping the vaccine coverage. Methodology: This exploratory study was conducted in September, 2014 by covering three rural Primary Health Centers near Bangalore by a team of field investigators. The population studied was children aged between 6 and 23 months at the time of the survey. WHO's standard EPI 30 cluster sampling technique was used for assessing the vaccine coverage. GarminGPS72H, a hand held GPS receiver, and Google Earth were used for spatial mapping the vaccination coverage. Results: A total of 210 children aged 6–23 months were included in the study. It was found that the completely immunized, partially immunized, and unimmunized children were 93.3%, 4.3%, and 2.4%, respectively. The most common cause for partial immunization and non-immunization was child being ill and the lack of information, respectively. Spatial mapping of vaccination coverage described the immunization coverage in the area and also gave insight into the probable reason for partial/non-immunized children. Conclusions: Coverage of PVV was very high and vaccine was well accepted by the community. GPS and Google Earth were useful in spatial mapping of the vaccination coverage.


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