Ebola virus disease – Democratic Republic of the Congo

November 1, 2019

India

healthysoch.com

Disease outbreak news: Update

Democratic Republic of the Congo, November 01, 2019 :

The ongoing Ebola virus disease (EVD) outbreak in the North Kivu and Ituri provinces saw a stabilization in the number of new cases this past week, with 19 confirmed cases reported in the past week (23–29 October), essentially equivalent to the 20 confirmed cases the week before. The majority (63%) of newly confirmed cases link back to chains of transmission in Biakato Mine Health Area, Mandima Health Zone, including a further three cases detected outside of Mandima in individuals who recently travelled from Biakato.

Onward local transmission has been observed in a limited number of towns and villages within family/social networks or health centers where cases visited prior to their detection and admission to treatment. In Mabalako, seven new cases were reported, of which two were linked to Biakato, two reported local family contact, and two were contacts within local health facilities, suggesting possible nosocomial exposure; investigations are ongoing for the remaining case. In Mambasa Health Zone, one additional case was reported, linked to a large cluster of cases. In Butembo, after over 21 days with no cases, two were reported this week. Both were residents of Kalunguta Health Zone where they were likely exposed. Thus far, there is no evidence of onward transmission in Butembo; nonetheless, these events demonstrate the high risks of reintroduction and resurgence in previously cleared health zones.

During the past 21 days (from 9 – 29 October), 59 confirmed cases were reported from eight active health zones in North Kivu and Ituri provinces (Figure 2, Table 1) with the majority reported in three health zones: Mandima (49%, n=29), Mabalako (20%, n=12), and Mambasa (10%, n=6). As of 29 October, a total of 3269 EVD cases were reported, including 3152 confirmed and 117 probable cases, of which 2182 cases died (overall case fatality ratio 67%). Of the total confirmed and probable cases, 56% (n=1841) were female, 28% (n=926) were children aged less than 18 years, and 5% (n=163) were health workers.

Figure 1: Confirmed and probable Ebola virus disease cases by week of illness onset by health zone. Data as of 29 October 2019*

*Excludes n=184 cases for whom onset dates not reported. Data in recent weeks are subject to delays in case confirmation and reporting, as well as ongoing data cleaning. Other health zones include: Alimbongo, Ariwara, Biena, Bunia, Goma, Kalunguta, Kayna, Komanda, Kyondo, Lolwa, Lubero, Manguredjipa, Masereka, Musienene, Mutwanga, Mwenga, Nyankunde, Nyiragongo, Oicha, Pinga, Rwampara, Tchomia, and Vuhovi. .

Figure 2: Confirmed and probable Ebola virus disease cases by week of reported cases by health areas. Data as of 29 October 2019*

Table 1: Confirmed and probable Ebola virus disease cases, and number of health areas affected, by health zone, North Kivu and Ituri provinces, Democratic Republic of the Congo, data as of 29 October 2019**

**Total cases and areas affected during the last 21 days are based on the initial date of case alert and may differ from date of confirmation and daily reporting by the Ministry of Health.

Public health response

For further information about public health response actions by the Ministry of Health, WHO, and partners, please refer to the latest situation reports published by the WHO Regional Office for Africa:

WHO risk assessment

WHO continuously monitors changes to the epidemiological situation and context of the outbreak to ensure that support to the response is adapted to the evolving circumstances. The last assessment, carried out on 8 October 2019, concluded that the national and regional risk levels remain very high, while global risk levels remain low.

While the relatively lower case incidence observed is encouraging, it must be interpreted with caution as the situation remains highly contingent upon the level of access and security within affected communities. Concurrent with the decline in case incidence, there was a further shift in hotspots from urban settings to more rural, hard-to-reach communities, within a more concentrated geographical area. These areas bring additional challenges to the response, including an extremely volatile security situation; difficulty accessing some remote areas; delays to engaging with the community which in turn lead to mistrust and misunderstandings; and, potential under-reporting of cases. In such environments, risks of resurgence remain very high, as do the risks of re-dispersion of the outbreak with cases travelling outside of hotspots to seek healthcare or for other reasons. These risks continue to be mitigated by the substantial response and preparedness activities in the DRC and neighbouring countries, with support from a consortium of international partners.

 

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