18 Feb 2019

Ebola virus disease (EVD) In Democratic Republic of Congo

The Ebola virus disease (EVD) outbreak is continuing with moderate intensity Ebola virus disease (EVD) In Democratic Republic of Congo

As of 12 February, 823 EVD cases (762 confirmed and 61 probable) including 517 deaths have been reported in Democratic Republic of Congo (DRC); a total of 68 health workers have been infected [1]. This continuing epidemic in North Kivu and Ituri Provinces (north east of the country) is the largest ever recorded in DRC and the second largest worldwide [2].

World Health Organization (WHO) report that there is a potential risk for transmission of EVD at national and regional levels due to extensive travel between the affected areas, the rest of the country, and neighbouring countries [1]. Significant challenges remain in this complex setting marked by a long-term humanitarian crisis and an unstable security context [2].

The European Centre for Disease prevention and Control (ECDC) consider that the probability that EU/EEA citizens living or travelling in EVD-affected areas of DRC will be exposed to the virus is low, provided they adhere to precautionary measures [2].

WHO advises against any restriction of travel and trade to DRC based on the currently available information [1]. The Foreign and Commonwealth Office (FCO) has restrictions on travel to some areas of DRC: travellers are recommended to review the current information prior to departure. 

This outbreak continues to present a negligible to very low risk to the UK public [3].

EVD is a severe, often fatal illness in humans and is introduced into human populations by close contact with the blood, secretions, organs or other bodily fluids of infected wild animals such as antelopes, bats, chimpanzees, gorillas and monkeys. The virus then spreads from person to person by direct contact with blood, faeces, vomit, secretions, organs or other bodily fluids of infected persons. People can also become infected by contact with objects, like contaminated needles or soiled clothing. Outbreaks have been fuelled by traditional burial practices, when mourners have direct contact with the deceased. Hospital workers have been infected through close contact with infected patients and insufficient use of correct infection control precautions and barrier nursing procedures. Sexual transmission has been documented, as the virus can be present in semen for months after recovery [4].

Advice for travellers

Visitors to EVD-affected areas face a low risk of becoming infected if the precautionary measures below are followed:

  • Avoid contact with symptomatic patients/their bodily fluids; corpses and/or bodily fluids from deceased patients, and all wild animals, alive and dead
  • Avoid handling or eating bush/wild meat (the meat of wild or feral mammals, killed for food)
  • Wash and peel fruit and vegetables before consumption
  • Wash hands regularly and carefully using soap and water (or alcohol gel when soap is unavailable)
  • Practise safer sex (using barrier contraception)

Exit screening is in operation for travellers leaving from Goma airport, DRC [2].

Get medical advice if you become ill within 21 days after getting home. You should call NHS111 or contact your GP by telephone; although it is very unlikely you have EVD, you should mention any potential exposure to the virus.

Humanitarian and other aid workers

  • risk to UK personnel (non-clinical) working outside the affected areas in DRC is very low
  • for those working in affected areas, risk will vary, depending on activities undertaken
  • exposure risk for those working directly with infected individuals, such as in treatment centres, is low, if strict barrier techniques have been implemented and all staff are provided with and trained in use of appropriate personal protective equipment [4].

More detailed advice can been found on the Public Health England guidance: Ebola virus disease: information for humanitarian aid workers.

Individuals planning to go to outbreak areas for humanitarian activities should follow advice from their deploying organisation before they travel. PHE is operating a returning workers scheme for humanitarian and healthcare workers who will be residing in England, Wales, Scotland or Northern Ireland after they have completed their deployments. Deploying organisations are asked to register their workers with the scheme in advance of their return to the UK. Further information on the returning workers scheme is available from PHE.

This outbreak is being closely monitored and the risk will be re-evaluated if the epidemiological situation changes. Travellers should monitor NaTHNaC and FCO updates on a regular basis for more information.

There is no licensed vaccine for general use in travellers to prevent EVD. An investigational, currently unlicensed vaccine is available for high risk populations in EVD risk regions in DRC [5].

Advice for health professionals

In the event of a symptomatic person with a relevant travel history presenting for health care, the Imported Fever Service should be contacted via your local infectious disease clinicians or microbiologists in order to discuss testing. The Rare and Imported Pathogens Laboratory will test patient samples if appropriate. Infection control recommendations and other clinical management advice are provided in the national viral haemorrhagic fever guidelines.

Resources

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