Abstract
Background
The 2018–2019 Ebola virus disease (EVD) outbreak in North Kivu and Ituri provinces, Democratic Republic of Congo (DRC), continues to spread. The recent discovery of cases in Uganda and in Goma, a major city in the eastern DRC, raises concern for potential EVD transmission in distant locales via commercial air travel.
Methods
We examined air travel patterns from the affected region with itinerary-level data from the International Air Transport Association for the year 2018 between July and October, inclusive. We focused on three scenarios: (i) travel from Beni airport, (ii) travel from Beni, Goma and Bunia airports and (iii) travel from Beni, Goma and Bunia, and Kigali airports. We evaluated country-level Infectious Disease Vulnerability Index (IDVI) scores for traveller destinations.
Results
There were 2255 commercial air passengers departing from Beni Airport during the specified time frame, all with domestic destinations, and 55% of which were to Goma. A total of 29 777 passengers travelled from Beni, Bunia and Goma airports during this time frame, with most travel (94.6%) departing from Goma Airport. A total of 72.4% of passengers’ final destination from these three airports were within the DRC, primarily to Kinshasa. There were 166 281 outbound passengers from Beni, Bunia, Goma and Kigali airports with the majority (82.1%) of passengers departing from Kigali. The most frequent destinations from these airports were Nairobi, Kinshasa and Entebbe. Eight of the 10 destinations with greatest passenger volumes are to countries with IDVI scores less than 0.4.
Conclusion
There is little commercial airline connectivity from the current EVD-affected area; however, larger cities in DRC and throughout East Africa should be aware of the low potential for EVD importation through this route. Most countries at greatest risk for EVD importation have limited capacity to manage these cases.
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