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. 2020 Apr 14;39(5):389–396. doi: 10.1097/INF.0000000000002594

FIGURE 1.

FIGURE 1.

Selection and follow-up of the study population in the study districts and distribution of events. *Received first dose at public health facilities; ¶ lost contact is “Lost contact during the period”; †last contact defined as “Received respective vaccination and time period at last follow-up contact”; ‡appropriate hospitalizations as per expert opinion and identified using PAEP criteria. KE-Kerala; TN-Tamil Nadu.