Please refer to the CDC Risk Assessment for details on the data sources.

Not all sub national results can be calculated for every country. When calculating the percent of states\province we limited the regions to those meeting the following criteria:

• Percent 0-dose and 4+ doses: states\prov. with ≥ 15 NPAFP cases, and a population of ≥ 100,000 under 15 year old children

• NPAFP rate: states\prov. with a population of ≥ 100,000 under 15 year old children

• Adequate stool: all states\prov. with at least 1 AFP case

Absence of independent monitoring data does not always indicate monitoring was not done; rather the data were not available at the time of this report. For countries such as Afghanistan, Pakistan, and Sudan the region shared limited IM data specific for the Major Process Indicators, these data are not shown here. Not all of the rounds, start dates, and OPV formulations could be verified.

Case data are shown through 30-September using laboratory data as of 2-November.

Stephen B. Thacker CDC Library collection