Data availability
This data set contains some personal information of the study patients (such as name, admission date, month, area of residence). Thus, the policy of our center (icddr,b) is that we should not make the availability of whole data set in the manuscript, the supplemental files, or a public repository. Our IRB has required that the personal information of the participants is not disclosed. The data that support the findings of this study are available from Armana Ahmed (armana@icddrb.org) to the Research Administration of icddr,b (