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23 Sep 2016

#Yellowfever #situation #report, 23 September 2016 (@WHO)


Title: #Yellowfever #situation #report, 23 September 2016.

Subject: Yellow Fever, multi-country outbreak, weekly update.

Source: World Health Organization (WHO), full page: (LINK).

Code: [     ]


Yellow fever situation report, 23 September 2016

A yellow fever outbreak was detected in Luanda, Angola late in December 2015. The first cases were confirmed by the National Institute for Communicable Diseases (NICD) in South Africa on 19 January 2016 and by the Institut Pasteur Dakar (IP-D) on 20 January. Subsequently, a rapid increase in the number of cases has been observed.


|-- Read the full situation report –|


Key updates

  • Angola epidemiological update (as of 15 September):
    • The last confirmed case had symptom onset on 23 June.
    • Three of the four laboratory positive cases reported in the previous situation report have been discarded as having recent vaccination history.
    • The remaining case reported in Tchindjenje district in Huambo province is under investigation.
    • Phase II of the vaccination campaign has been prepared and will begin shortly in 12 districts in 9 provinces.
  • Democratic Republic of the Congo epidemiological update (as of 18 September):
    • The last confirmed non-sylvatic case had symptom onset on 12 July.
    • 9 new cases are under investigation, 8 in Kinshasa province and 1 in Lingomono Health Zone in Tshuapa province.
    • A total of 12 cases are under investigation including the first notified case reported in Sud Ubangi province in Bominenge Health Zone (reported in the situation report of 26 August).
    • The reactive vaccination campaign in Feshi and Mushenge Health Zones in Kwango province will begin soon.
    • Democratic Republic of the Congo is planning a pre-emptive vaccination campaign.
  • Analysis
    • The continuing detection and investigation of suspected and laboratory positive cases demonstrate that active surveillance is functioning well in some areas.
    • Nevertheless, it is important to note the inherent difficulties in surveillance and laboratory confirmation capacities.
    • It remains possible that detection of a case could be delayed in some remote areas.
    • A strong and sustained surveillance effort is therefore more crucial than ever.


Keywords: WHO; Updates; Yellow Fever; Angola; Congo DR.