Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2021 Apr 12;Spec Issue(2):1116.
doi: 10.29245/2578-3009/2021/S2.1116.

Vaccinations and Vaccinators' Tracking System in Island Settlements: CHAD 2017-2018

Affiliations

Vaccinations and Vaccinators' Tracking System in Island Settlements: CHAD 2017-2018

Ajiri Atagbaza et al. J Immunol Sci. .

Abstract

Introduction: Chad is a country within the Lake Chad sub region, currently at risk for poliovirus infection. The Lake Chad Task Team on polio eradication in this sub region made significant efforts to reduce the risk of polio transmission in Chad by tacking immunization teams in the Island Settlement using a Geographic Information System (GIS) technology. This article demonstrates the application of GIS technology to track vaccination teams to monitor immunization coverage in the Island settlements, reduce the number of missed settlements, to provide evidence for vaccination implementation and accountability and improve team performance.

Methods: In each district where tracking was conducted, global positioning system-enabled Android phones were given to each team on a daily basis and were used to record team tracks. These tracks were uploaded to a dashboard to show the level of coverage and identify areas missed by the teams.

Results: In 2018, tracking covered 30 immunization days, in six rounds. Approximately average of 1173 Island settlements were tracked and covered in each of the six rounds. A total of 806,999 persons aged 0-10 years were immunized, out of which 4273 were zero dose cases at the point of their immunization. Tracking activities were conducted. There was an improvement in the geographic coverage of settlements and an overall reduction in the number of missed settlements.

Conclusions: The tracking of vaccination teams and Island settlements ensured useful information for planning and implementation of polio campaigns and enabled supervisors to evaluate performance of vaccination teams.

Keywords: Dashboard; Geographic coverage of settlements; Team performance; Tracking vaccination teams.

PubMed Disclaimer

Figures

Figure 1
Figure 1. Vaccination Tracking System (VTS) Dashboard
Figure 2
Figure 2. Islands tracked, by campaign month between 2017 and 2018 mapped by geographic information system technology.
Figure 3
Figure 3. Island Settlement Areas visited by vaccination teams during polio campaigns in Chad, highlighting main vaccination activities (days 1–3 of campaigns) and mop-up activities (day 4; final campaign day)
Figure 4
Figure 4. Proportion of settlements in Chad islands visited over time: 2017-2018 2nd-5 March 2018 Chad SIA
Figure 5
Figure 5. Day-by-day settlement coverage comparison per Settlement Type and health district (November 20-24, 2018 Campaign)
Figure 6
Figure 6. Inhabited Settlements and Vaccination Reach

References

    1. WHO. WHO | Poliomyelitis. World Health Organization; 2018. [Accessed March 19, 2018]. http://www.who.int/mediacentre/factsheets/fs114/en/
    1. World Health Organization (WHO) The Immunological Basis for Immunization Series. Glob Program Vaccines Immun. 1993
    1. Lien G, Heymann DL. The Problems with Polio: Toward Eradication. Infect Dis Ther. 2013;2(2):167–174. doi: 10.1007/s40121-013-0014-6. - DOI - PMC - PubMed
    1. Bloom D. The value of vaccination. Adv Exp Med Biol. 2011;697:1–8. - PubMed
    1. Mavimbe JCT, Muquingue HN, Braa J, et al. Immunization coverage in Mozambique: from concepts to decision-making. Health Policy. 2006;79:92–100. - PubMed

LinkOut - more resources