Status: affected by circulating vaccine-derived poliovirus 2 (cVDPV2)
Polio this week in Tanzania
- No cVDPV2 cases were reported this week. There have been two cases reported in the country this year.
- No cVDPV2 positive environmental samples were reported this week.
- Since 2022, Tanzania has been actively participating in a multi-country outbreak response across south-east Africa, in response to detection of different strains of poliovirus in the sub-region, including by boosting immunity levels and strengthening subnational surveillance capacity.
International Health Regulations
Countries affected by poliovirus circulation are subject to temporary recommendations issued by the Emergency Committee of the International Health Regulations on Poliovirus, under the auspices of the Public Health Emergency of International Concern. The latest report by the Committee is effective as of August 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.