Posted by Zone 27 Polio Coordinator Bob Rogers
                                  Rotary Zones 26 & 27
PolioPlus Weekly Update 26 May, 2021

Greetings Polio Warriors:

  • Wild Polio Virus OK, we can all collectively EXHALE, as I can report to you once again…NO NEW CASES this last week .
ONE HUNDRED AND FORTY-FIVE The number of days since the last case of the wild poliovirus Type 1 occurred in Afghanistan.
ONE HUNDRED AND NINETEEN The number of days since the last case of         the wildpoliovirus Type 1 occurred in Pakistan.
TWO - The total number of cases of the wild poliovirus Type 1 that occurred in the world sinceNew Years Day.
FIFTY-NINE - The number of cases of the wild poliovirus Type 1 that occurred in 2020 on this date.
Last week marks the SEVENTEENTH WEEK IN A ROW that there has been no reported newcases of the wild poliovirus in either Pakistan or Afghanistan. And on top of that, the THIRD WEEK IN A ROW that there has been ZERO positive environmental samples. We have now pushed the envelope out to three weeks without a case or positive environmental sample of the wildpolio virus. We continue to expand our uncharted territory! Once
  • Vaccine-Derived Polio - Last week saw an increase in vaccine-derived polio cases: five in DR Congo, three in Madagascar and one each in Burkina Faso, Congo, Guinea and Mali.However, the case in Mali occurred in 2020, but is just being reported now. That brings us to 96 total cases for the year, compared to 122 at this time last year. 6 positive environmental samples of the vaccine-derived poliovirus were also discovered, two in Liberia, two in Tajikistan and oneeach in Pakistan and Madagascar.
Novel Oral Poliovaccine - Towards the eradication of the vaccine derived strain of this disease, a May 4th meeting of the Emergency
Committee on the international spread of the poliovirus was convened by the WHO Director General. In the meeting statement, available HERE it was verified that the novel Oral Polio Vaccine Type 2 (nOPV2) has been introduced and delivered in two countries (Nigeria and Liberia) with an additional four countries to implement nOPV2 campaigns by the end of May. This is exciting news IMHO, and as reported earlier, sources say we could hopefully have enough data to publish preliminary results sometime next month…stay tuned, as they say.
The PolioPlus year end appeal - We are now a little over 4 weeks away from the end of the Rotary year. As mentioned last week, we are lagging     13% behind last year’s figures in our quest to reach the $50 million dollar goal to take advantage of the Gates Foundation 2:1 match. And you already know about DDF donations growing by a factor of 6:1, so I won’t repeat the details here. But…do please consider donating as much DDF as your District can spare to support Rotary’s #1 goal. To donate DDF, TRF recommends using their online system, with the following link: Online DDF Allocation

Poliovirus Weekly Update May 26, 2021, World Health Organization

Wild Poliovirus Summary:
You will see below and on the attached powerpoint, that the numbers are, once again unchanged. Thenumber of wild polio cases for 2021 as of May 26, 2021 remains at 2 (1 in Pakistan and 1 in Afghanistan).
The total number of wild polio cases in 2020 were 140 (84 in Pakistan and 56 in Afghanistan).
The total number of wild polio cases in 2019 were 176 (147 in Pakistan and 29 in Afghanistan).
Note: Polio “Acronyms”. For a complete list go to acronyms/
AFP = Acute Flaccid Paralysis
cVDPV = Circulating Vaccine Derived Poliovirus (a 1 or 2 behind it denotes the polio type…ie cVDPV2)
WPV1 = Wild Poliovirus, Type 1
ES = Positive Environmental Samples
New wild poliovirus isolates reported this week:
AFP cases: 0
Environment: 0
New cVDPV isolates reported this week:
AFP cases: 12
Environment: 6
Officially reported WPV1 and cVDPV cases as of 26 May, 2021 Wild poliovirus (WPV) cases
  • Total global WPV1 cases in 2021: 2 (compared to 59 for the same period in 2020)
    • Total global WPV1 cases in 2020: 140
Circulating vaccine-derived poliovirus (cVDPV) cases
  • Total global cVDPV cases in 2021: 96* (compared to 122 for the same period in 2020)
  • Total global cVDPV cases in 2020: 1088**
*Although there were 12 cases reported last week, 11 occurred in the 2021 calendar year,with the remaining 1 case occurring in 2020.
** The 1 case of cVDPV reported above that occurred in 2020 increased the total 2020 cases from last week’s 1,087 to 1,088.
Summary of new WPV and cVDPV this week (AFP cases and ES positives) by country. For complete details on individual countries, go to https://
  • Pakistan: one cVDPV2 positive environmental sample
  • Burkina Faso: one cVDPV2 case
  • Congo: one cVDPV2 case
  • DR Congo: five cVDPV2 cases
  • Guinea: one cVDPV2 case
  • Liberia: two cVDPV2 positive environmental samples
    • Madagascar: 3 cVDPV1 cases and 1 cVDPV1 positive environmental sample
  • Mali: one cVDPV2 case
  • Tajikistan: two cVDPV2 positive environmental samples