Risk of international spread of yellow fever re-assessed in light of the ongoing outbreaks

Suspected and confirmed cases of yellow fever by province of reporting, Angola, 5 December 2015-22 May 2016. Figure 3 taken from ECDC RRA on Outbreaks of yellow fever in Angola, DRC and Uganda - first update, 27 May 2016. Credit: ECDC

ECDC has updated its rapid risk assessment on the outbreak of yellow fever with the latest developments, more comprehensive information on the current situation in Angola, Democratic Republic of Congo (DRC) and Uganda and an extended threat assessment for the EU.

Some of the data used in the assessment were collected during a mission to Angola in May 2016.

Current situation

From 21 January to 22 May 2016, the Angolan Ministry of Health notified 2 536 yellow fever cases, of which 747 were confirmed and 301 fatal. The number of new suspected and confirmed cases in Angola has been decreasing and a mass vaccination campaign has already reached about half of the targeted population. However, the outbreak in Angola is not yet under control and is currently expanding to additional provinces, further challenging the ongoing mass vaccination campaign. Currently, all regions in Angola should be considered as areas at high risk of transmission of yellow fever.

The yellow fever outbreak in Uganda is unrelated to the outbreak in Angola. Between 26 March and 19 May 2016, health authorities reported 60 yellow fever cases, including seven deaths in six different districts.

As of 23 May, DRC has reported 590 cases of yellow fever, 41 of these had a recent travel history to Angola.

Viraemic patients travelling to areas where suitable vectors and susceptible human populations are present pose a risk for local transmission. Such areas exist in most of the inter-tropical zones of Africa, and the Americas and Asia.

Therefore, the risk of international spread within Africa and beyond is currently high.

ECDC threat assessment for the EU

In the EU/EEA, the risk of yellow fever virus being introduced is limited to unvaccinated viraemic travellers coming from areas with active local transmission. Given that outbreaks of yellow fever in urban settings have the potential for rapid spread and that significant yellow fever epidemics are ongoing in Angola, DRC and Uganda, a range of options for response by EU/EEA Member States are presented in the updated rapid risk assessment. These options emphasize the importance of vaccination of travellers and those leaving Angola, preventive measures against mosquito bites in affected areas, as well as awareness raising among clinicians to consider this diagnosis in returning travellers.

###

Read the rapid risk assessment: Outbreaks of yellow fever in Angola, Democratic Republic of Congo and Uganda, first update

ECDC yellow fever health topic

Media Contact

ECDC Press EurekAlert!

All latest news from the category: Health and Medicine

This subject area encompasses research and studies in the field of human medicine.

Among the wide-ranging list of topics covered here are anesthesiology, anatomy, surgery, human genetics, hygiene and environmental medicine, internal medicine, neurology, pharmacology, physiology, urology and dental medicine.

Back to home

Comments (0)

Write a comment

Newest articles

Results for control of pollutants in water

Brazilian scientists tested a simple and sustainable method for monitoring and degrading a mixture of polycyclic aromatic hydrocarbons, compounds present in fossil fuels and industrial waste. An article published in the journal Catalysis…

A tandem approach for better solar cells

Perovskite-based solar cells were first proved in 2009 to have excellent light-absorbing properties of methylammonium lead bromide and methylammonium lead iodide, collectively referred to as lead halide perovskites or, more…

The behavior of ant queens is shaped by their social environment

Specialization of ant queens as mere egg-layers is reversible / Queen behavioral specialization is initiated and maintained by the presence of workers. The queens in colonies of social insects, such…

Partners & Sponsors