Afghanistan and Pakistan reported more WPV1 cases, as 3 African countries report more vaccine-derived cases.
Pakistan and Afghanistan report wild poliovirus type 1 cases, and Chad, Niger, and Nigeria report circulating vaccine-derived poliovirus type 2 cases.
To date, 442,855 children under 10 years have been successfully vaccinated in central and south Gaza.
The first phase of Nigeria's campaign will begin in November, targeting Kebbi and Beyelsa states, where malaria activity is especially high.
Genetic sequencing hasn't found a link to similar viruses elsewhere, and no related illnesses have been reported.
At least two doses of the novel oral polio vaccine type 2 are needed to interrupt transmission
Pakistan now has 28 cases of WPV1 this year.
The CDC reports just 2 new measles cases, raising the national total this year to 264.
The number of US measles cases reported this year has risen to 262, up 11 from a week ago.
Afghanistan's polio vaccine campaign raises concerns, given that WPV1 is endemic there and cases are rising.