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DRC - Polio 2022 - 2023

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  • #31

    Week 43: 23 October - 29 October 2023
    Data as reported by: 17:00; 29 October 2023


    Democratic Republic of
    the Congo

    Polio (cVDPV1 and cVDPV2)

    186 Cases
    0 Deaths
    0.0% CFR


    The Democratic Republic of the Congo (DRC) was
    certified “wild Polio-free country” by WHO since
    November 2015 following zero case of wild Polio
    reported in the country since December 2011. However,
    regarding vaccine derived polio outbreak, the country
    is the most affected in the WHO AFRO region reporting
    both circulating vaccine-derived polioviruses (cVDPV1
    and cVDPV2 cases).

    Since 2017, the country has experienced 23 outbreaks
    of vaccine derived Polio, reported in 181 health zones
    across 24 provinces. Of the 23 reported outbreaks, 14
    (61.0%) ended and nine (39.0%) are still ongoing, with
    most cases reported in the southeastern part of the
    country, over the last two years (2022 and 2023).

    During epidemiological week 41 (ending 15 October
    2023), two new cases of cVDPV1 were reported from
    two newly affected health zones: Kiambi in Tanganyika
    province and Mufunga-Sampwe in Haut Katanga
    province. Furthermore, 33 environmental samples
    collected in the provincial sites of Kinshasa, Equateur,
    Haut Katanga, and Lualaba tested positive for cVDPV2,
    of which 85.0% (n=25) were from Kinshasa province.

    From epidemiological week 1 to week 41, a total of
    186 confirmed circulating vaccine-derived poliovirus
    (cVDPV) including 79 (42.5 %) cVDPV1 and 107
    (57.5%) cVDPV2 have been reported. Haut Katanga and
    Tanganyika provinces were the most affected, with 44
    cases (33 cVDPV1 and 11 cVDPV2) and 41 cases (36
    cVDPV1 and 5 cVDPV2) respectively.

    From 1 January to 19 October 2023, a cumulative total of
    3 630 AFP cases have been reported in 98.0% (n=509)
    of the 519 health districts, with an estimated no polio AFP
    rate of 7.2 per 100 000 population of less than 15 years
    old (country target: ≥ 3/100 000). Nearly 60.0% (n=2 083)
    of the AFP cases were notified by healthcare providers
    (n= 2 083), followed by community health workers
    (36.0%, n=1 310), relatives (3.1%, n=113), traditional
    healers (0.5%, n=21) and non-government organizations
    (0.4%, n=16).

    The percentage of AFP cases notified within 7 days of
    the onset of paralysis was 67.1% (target: ≥ 80 %), and
    only 9.1% (target: ≥ 80%) of the collected samples
    reached the laboratory for investigation within 3 days
    or less; the remaining samples arrived late.

    Since 2017 and as of 20 October 2023, there have
    been a cumulative total of 23 648 AFP cases, with 938
    (4.0%) confirmed polio cases including 722 (77.0%)
    cVDPV2 and 216 (23.0%) cVDPV1. The highest
    number of cases was reported in 2022 with a total
    of 520 (55.4%) confirmed cVDPV cases, including
    377 cVDPV2 and 143 cVDPV1. Haut Lomami and
    Tanganyika provinces reported most cases with 185
    cases (103 cVDPV1 and 82 cVDPV2) and 163 cases
    (103 cVDPV1 and 82 cVDPV2) respectively.

    From 20 October 2022 to 19 October 2023, of the
    3 644 reported AFP cases, 46% (n=1 676) of those
    aged between 6- 59 months, received more than four
    Polio vaccine doses, while 16.0% (n=583) had an
    unknown vaccination status, and 10.0% (n=365) had
    zero Polio vaccine dose.


    The Ministry of health is coordinating the
    preparation and implementation of polio
    vaccination campaigns in the affected provinces
    and health zones with support from WHO and
    other implementing partners.

    WHO continues to support the training of national,
    provincial and health zones surveillance officers
    on electronic surveillance

    Active Polio case search, case investigation and
    supportive integrated supervisions in the affected
    health zones are ongoing.

    Annual review of environmental surveillance sites
    is ongoing, and investigations of polioviruses
    isolated from environmental samples are


    Vaccine derived Polio disease remains a public health
    concern in DRC. While efforts have been made to fulfill
    two key indicators, namely AFP case investigation
    within 48 hours, and stool sample collection adequacy,
    there still a need to strengthen cases notification within
    7 days of the onset of paralysis and ensure that samples are
    shipped to the laboratory within 3 days or less. It’s worth noting
    a significant community involvement in reporting AFP
    cases, with nearly 36% of AFP cases reported.
    The Government along with its partners should
    enhance and maintain quality routine polio vaccination
    activities, as well as targeted response
    efforts in hard-to-reach areas to achieve the
    national and global polio eradication objectives.\[]​
    "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
    -Nelson Mandela


    • #32
      Translation Google

      Tanganyika: significant drop in poliomyelitis cases, EPI raises the need to continue vaccination

      Wednesday November 22, 2023 - 10:31 p.m.

      In the province of Tanganyika, the number of confirmed cases of poliomyelitis has decreased significantly since the start of the current year, announces the provincial medical coordinator of the expanded immunization program (EPI), Dr Jean-Pierre Kitenge Mikenza.

      According to him, the number of polio cases has fallen by 75% and the number of patients has fallen from nearly 147 to 41 across the 11 health zones in the province since the beginning of the year; and of these 41 cases, more than 36 cases are caused by type 1 polio, and the remaining 5 are type 2. Despite these figures, Dr. Mikenza points out the low vaccination coverage in Tanganyika, which surrounded by courses of water and varying relief.

      “Many areas are bordered by several watercourses. This may pose difficulties regarding the accessibility of the vaccine in these areas. Tanganyika also has mountains which make it difficult to administer general health care, including vaccination. This is one of the weaknesses of the province's vaccination system. And this could explain the comeback of the type 1 polio variant which had disappeared for a while,” he reports.

      A vaccination campaign against Poliomyelitis took place in the province of Tanganyika from November 17 to 20.

      During a workshop held in Kinshasa on the analysis of the vaccination situation in the DRC, with a view to planning the future financing of the EPI for the period from 2025 to 2029, the experts recognized that Tanganyika was among the 3 provinces which maintain regular vaccination coverage, with Haut-Lomani and Lualaba. Recent strikes by vaccination workers had slowed down vaccination in this part of the country.

      Jean Marie Makuma

      Dans la province du Tanganyika, le nombre de cas confirmés de la poliomyélite a sensiblement diminué depuis le début de l’année en cours, annonce le médecin coordonnateur provincial du programme élargi de vaccination (PEV), Dr Jean-Pierre Kitenge
      "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
      -Nelson Mandela


      • #33
        Translation Google

        Tanganyika: two cases of polio recorded in the Kalemie health zone in 10 months

        Published on Sun, 26/11/2023 - 23:36 | Modified on Sun, 26/11/2023 - 23:42

        Two confirmed cases of polio and 47 others of acute flaccid paralysis have been recorded since last January in the Kalemie health zone (Tanganyika).

        The chief medical officer of this health zone, Dr Yvan Mwamba reported these figures in an interview with the media.

        “ Thus, this year 2023, the Kalemie health zone recorded only two confirmed cases of polio while 47 cases of acute flaccid paralysis whose samples were sent to the INRB in Kinshasa for analysis” he said . he declares.

        This doctor director of the Kalemie General Reference Hospital (Tanganyika) attributed this improvement to the implementation of the strategy called “owl”.

        This consists of vaccinators going into households and vaccinating children at night under the supervision of either their mothers or fathers.

        According to this doctor director of the Kalemie General Reference Hospital (Tanganyika), this “owl” strategy supports others used in the fight against poliomyelitis and other diseases.

        “ Regarding polio vaccination, we use the door-to-door strategy, and the second strategy we use is the owl strategy, where the nurses (IT) and health area coordinators go to the households and vaccinate the children at night under the supervision of either the mother or the father. Under the pretext that we cannot score, because the dad does not agree with vaccination and the mom agrees, so it is done at night when the dad is absent,” underlined Dr. Yvan Mwamba.

        Another vaccination strategy “consists of the involvement of indigenous peoples (the pygmies) in vaccination activities as community relays in order to bring the population together.

        “ These refractory groups easily agree to be vaccinated if they find that a community relay is from their community ,” added this doctor.

        A third strategy is recovery through routine vaccination:

        “There are information sheets that the community relays use and each time we identify a child receiving vaccination, the community relays direct the child with a token to the respective health area to go and take the vaccine. There are vaccination activities that IT organizes on site, in health areas and advanced activities, IT travel from one village to another to vaccinate.”

        These vaccination strategies and in particular the owl strategy have paid off.

        He also recommended that the Congolese state help health zones in “planning vaccination activities.

        “ This good planning helps us at the provincial level to properly coordinate our activities and achieve the objective and properly cover the target population that we are supporting ,” continued Dr. Yvan Mwamba.

        Finally, the head doctor of the Kalemie health zone mentioned cases of resistance to vaccination. These cases are often due to the religious beliefs of certain sects such as Watch Taywer, Red Kimbanguism, etc.

        The town of Kalemie has two health zones: Nyemba and Kalemie. The Kalemie health zone includes 27 health areas including 8 in the town of Kalemie and 19 in the outskirts of the town.

        Deux cas de polio confirmés et 47 autres de paralysie flasque aigue ont été enregistrés, depuis janvier dernier, dans la zone de santé de Kalemie (Tanganyika). Le médecin chef ai de cette zone de santé, Dr Yvan Mwamba a rapporté ces chiffres dans un entretien accordé aux médias. "Ainsi, cette année 2023, la zone de santé de Kalemie n’a enregistré que deux cas de polio confirmés alors que 47 cas de paralysie flasque aigue dont les échantillons ont été envoyées à l’INRB à Kinshasa pour analyse"a-t-il déclaré.
        "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
        -Nelson Mandela