Status: affected by circulating vaccine-derived poliovirus type 2 (cVDPV2)
Polio this week in Chad
- Two cVDPV2 cases were reported this week from Lac and Logone oriental. There have been eight cases reported this year.
International Health Regulations
Chad is classified by the International Health Regulations (IHR) as a state infected with cVDPV2, with or without evidence of local transmission. It is therefore subject to temporary recommendations (issued as of May 2023).
WHO’s International Travel and Health recommends that all travellers to polio-affected areas be fully vaccinated against polio. Residents (and visitors for more than 4 weeks) from infected areas should receive an additional dose of OPV or inactivated polio vaccine (IPV) within 4 weeks to 12 months of travel.