Polio this week as of 29 May 2018
Great News: The only new cases of polio have been limited to Afghanistan!
Headlines: At last week’s World Health Assembly (WHA), ministers of health and delegates reviewed progress being achieved through national emergency action plans in remaining endemic countries. Delegates noted that wild poliovirus transmission is now at the lowest ever levels in history.
To prepare for a polio-free world, Member States adopted a landmark resolution on poliovirus containment, and endorsed the 5-year strategic action plan on polio transition, which outlines how essential polio functions such as surveillance, laboratory networks and core infrastructure can support the implementation of the Post-Certification Strategy (PCS) to sustain a polio-free world, and can be integrated into the immunization or health emergencies’ programme, or mainstreamed into national health systems.
Member States expressed overwhelming commitment to fully implement and finance all strategies to secure a lasting polio-free world in the very near term. Rotary International, speaking on behalf of the Global Polio Eradication Initiative (GPEI), offered an impassioned plea to the global community to eradicate a human disease for only the second time in history, and ensure that no child will ever again be paralysed by any form of poliovirus anywhere.
Summary of newly-reported viruses this week: one new wild poliovirus type 1 (WPV1) case and two new WPV1-positive environmental samples reported from Afghanistan; and four new WPV1-positive environmental samples reported from Pakistan. See country sections below for more details.
Afghanistan: One new case of wild poliovirus type 1 (WPV1) has been reported this week, with onset of paralysis on 27 April from Kandahar, bringing the total number of WPV1 cases in 2018 to eight.
Two new WPV1-positive environmental samples were reported in the past week, from Jalalabad, Nangarhar, collected on 26 March and 24 April.
During the May immunization campaign, vaccinators worked to reach over 9.6 million children with bivalent oral polio vaccine.
Read the latest polio update from Afghanistan to see information on cases, surveillance and vaccination campaigns.
Pakistan: No new cases of wild poliovirus type 1 (WPV1) have been confirmed this week.
The total number of officially reported WPV1 cases in Pakistan in 2018 is one.
The most recent case (by date of onset) occurred in Dukki district, Balochistan province, with onset of paralysis on 8 March.
Four new WPV1-positive environmental samples were reported in the past week, all collected on 10 May in: Rawalpindi, Punjab (two samples); Karachi Gadap, Sindh; and, Peshawar, Khyber Pakhtunkhwa (KP).
During the May immunization campaign, vaccinators worked to reach over 20 million children with bivalent oral polio vaccine.
Read the latest polio update from Pakistan to see information on cases, surveillance and vaccination campaigns.
Nigeria: No new cases of wild poliovirus type 1 (WPV1) were reported in the past week.
The total number of WPV1 cases for 2016 is four and no cases have been reported in 2017 or 2018.
The most recent case (by date of onset) was reported in Monguno Local Government Area, Borno, with onset on 21 August 2016.
Following notification of initial cVDPV2 isolates from January and February, the programme conducted enhanced vaccination activities using IPV in 13 high-risk wards (target population approximately 55 000 children).
Since confirmation of cVDPV2 in Nigeria, the country has conducted additional acute flaccid paralysis surveillance strengthening activities including enhanced active surveillance visits, and community sampling. The programme has also carried out extensive search for type 2 containing vaccines (tOPV/mOPV2) in the areas surrounding where the virus was detected.
The GPEI is working with Regional and country counterparts and partners to supporting the local public health authorities to conduct a field investigation and thorough risk assessment, and to discuss needs for immunization response.