Income level (as of 2013) | Polio vaccine(s) used (as of 2013) | Population size in billions (as of 2013) | Years until OPV use startsb | Year until IPV-only or IPV/OPV startsb | Number of assigned blocks | Number of blocks assigned to each R0 (for WPV1) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | ||||||
Low | OPV-only | 0.86 | 33 | N/A | 8 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 2 | 1 | 1 |
Lower middle | OPV-only | 2.48 | 33 | N/A | 25 | 0 | 0 | 1 | 4 | 5 | 2 | 0 | 10 | 1 | 2 |
Upper middle | OPV-only | 1.87 | 20 | N/A | 19 | 0 | 0 | 1 | 16 | 2 | 0 | 0 | 0 | 0 | 0 |
Upper middle | IPV/OPV | 0.50 | 20 | 58 | 7 | 0 | Â | 2 | 3 | 2 | 0 | 0 | 0 | 0 | 0 |
High | IPV/OPV | 0.23 | 10 | 50 | 2 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
High | IPV-only | 1.02 | 10 | 50 | 10c | 2 | 7.7 | 0.3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |