Polio Update 
Wild Polio Virus Summary:
 
  • The number of wild polio cases for 2022 as of July 13, 2022 is 13. There was 1 in Afghanistan, 11 in Pakistan, and 1 in Mozambique.
  • The total number of wild polio cases in 2021 were 6. There was 1 in Pakistan, 1 in Malawi, and 4 in Afghanistan.
  • The total number of wild polio cases in 2020 were 140. There were 84 in Pakistan and 56 in Afghanistan. 
  • The total number of wild polio cases in 2019 were 176. There were 147 in Pakistan and 29 in Afghanistan.
 
  • New wild poliovirus isolates reported this week:
    AFP cases: 0
    Environment: 1
    Others: 0
     
    New cVDPV isolates reported this week:
    AFP cases 9
    Environment: 4
    Others:  0

    Headlines:-      
  • The GPEI has released a statement on the passing of Hon. Shinzo Abe, former Prime Minister of Japan and advocate for polio eradication. Read more
  • In a new op-ed by Dr Marc Danzon and Dr Hans Henri P. Kluge, Former and Current WHO Regional Directors for Europe, they discuss the risk of losing Europe’s wild-polio free status, highlighting that “vaccines remain our best defence against polio”.
  • Summary of new polioviruses this week:
  • Pakistan: one WPV1 positive environmental sample
  • Algeria: one cVDPV2 case
  • Benin: two cVDPV2 cases
  • DR Congo: one cVDPV2 positive environmental sample
  • Eritrea: one cVDPV2 case
  • Ghana: one cVDPV2 case and three positive environmental samples
  • Niger: four cVDPV2 cases

Afghanistan:
  • No new WPV1 or cVDPV2 viruses were reported this week. There is one WPV1 case reported in 2022 and four in 2021.  The total number of cVDPV2 cases remains 43.
Pakistan: 
  • No new WPV1 or cVDPV2 viruses were reported this week. The number of 2022 WPV1 cases remains 11. There was one WPV1 case in 2021. The total number of cVDPV2 cases remains eight.
  • One WPV1 positive environmental sample was reported in Khyber Pakhtunkhwa.
Officially reported WPV1 and cVDPV cases as of 12 July 2022
Wild poliovirus (WPV)
·     Total global WPV1 cases in 2022: 13 (compared with 6 for the same period in 2021)
      Total global WPV1 cases in 2021: 6
Circulating vaccine-derived poliovirus (cVDPV) cases
·     Total global cVDPV cases in 2022: 173 (compared with 139 for the same period in 2021)
·     Total global cVDPV cases in 2021: 698