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Chad: Measles Outbreak - May 2018

Status
Ongoing
Countries
Chad
Disaster types
Epidemic

Since the start of the year, 400 cases, including 14 deaths, were reported as of 20 May compared to 205 cases and one death over the same period in 2017. Three districts have reached the epidemic threshold. (OCHA, 28 May 2018)

A measles outbreak has been declared on 30 May in five districts of Chad (Bokoro, Gama, Ati, Am dam and Goz Beida), where 474 cases and 18 deaths have been reported. Medecins Sans Frontières is conducting a Measles outbreak investigation field mission in the affected area. Based on the Multiple Indicator Cluster Survey, only one in four children aged 12-23 months (25%) is fully immunised. A stock of 60 000 vaccination doses funded by DG ECHO is available in-country for the local response. (ECHO, 2 Jun 2018)

Health authorities on 8 June declared a measles epidemic after 540 cases and 23 deaths were recorded. The disease has erupted in 89 districts, 10 of which have reached the epidemic level. A US$589,000-response plan by the Government, NGO and UN partners is underway to vaccinate around 572,000 children. Measles is one of the leading causes of death among young children. (OCHA, 19 Jun 2018)

Between week 1 and week 26 (ending 1 July 2018) of 2018, a total of 1284 suspected cases with 49 deaths (CFR 3.8%) have been reported. The cases have been reported from 95 out of 117 health districts in the country. As of 1 July 2018, 90 cases have been laboratory confirmed, 376 confirmed by epidemiological link, and 21 clinically compatible. As of 1 July 2018, 11 districts have had confirmed ongoing measles outbreak, these include: Bokoro, Gama, Amdam, Goz Beida, Haraze Mangueigne, Abeche, Arada, Ati, Mongo, Rig Rig, Tissi and Bardaï. (WHO, 6 Jul 2018)

The measles epidemic declared on 30 May continues to spread affecting 24 districts in the north, east and central parts of Chad. According to the latest data, there have been more than 2 000 suspected cases and 77 deaths. A national response plan is currently being developed. Based on the latest survey, only one in four children aged 12-23 months is fully immunised. A stock of 60 000 vaccination doses funded by DG ECHO is being used for the local response.(ECHO, 29 Aug 2018)

Since week 18, there has been a dramatic increase in the number of measles cases reported. (WHO, 31 Aug 2018)

The measles outbreak in Chad which started at the beginning of 2018 continues to evolve. Between week 1 and week 36 (week ending 9 September 2018), a total of 2 734 suspected cases of measles were reported including 78 deaths (case fatality ratio 2.9%). Of these, 602 were sampled and tested, 231 were laboratory confirmed, 419 had epidemiological links to confirmed cases and 30 were clinically compatible. Of the 2 734 suspected cases of measles, 1 021 cases were investigated. The average age is 9.9 years and the median age was 6 years. About 39% of the affected people are four years of age and below, 23% are between five and nine years and 37% are 10 years and above. Only 15% (150) of the investigated cases had previously been vaccinated against measles.
In the reporting week, two new district reported a confirmed case, Mao and Karal. As of reporting date, a total of 27 districts have had a confirmed measles outbreak. These districts include: Abeche, Abdi, Abougoudam, Adré, Am dam, Ati, Arada, Bardai, Bokoro, Fada, Gama, Goz Beida, Guereda, Haraze Mangueigne, Mongo, Rig Rig, Tissi, Kouloudja, Kirdimi, Karal, Mao, Matadjana, Massakory, Massaguet, N’Djamena East, N’Djamena South, and Zouar. (WHO, 21 Sep 2018)