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19 Sep 2016

#Yellowfever #situation #report, 16 September 2016 (@WHO, summary)


Title: #Yellowfever #situation #report, 16 September 2016.

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

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

Code: [     ]


Yellow fever situation report, 16 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):
    • There have been 4 new laboratory positive cases this week, 2 of which have been discarded as having recent vaccination history.
    • The other 2 are currently 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 14 September):
    • The second case reported from Budjala Health Zone in Sud Ubangui province (reported in the situation report of 9 September) has been confirmed for yellow fever.
    • Based on the investigation this has been classified as a sylvatic case not related to the outbreak.
    • The first notified case reported in Sud Ubangi province in Bominenge Health Zone (reported in the situation report of 26 August) remains under investigation.
    • The pre-emptive vaccination campaign in Democratic Republic of the Congo has concluded.
    • The results indicate that the overall administrative immunization is 102.7% in the six provinces.
    • The response vaccination campaign in Feshi and Mushenge Health Zones in Kwango province will begin next week.



  • The continuing detection of suspected and confirmed sylvatic cases demonstrates 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: Yellow Fever; Updates; World Health Organization; Angola; Congo DR.