The sixteenth Ebola virus disease in Bulape, Democratic Republic of the Congo: Is there something new there?

Abstract

Introduction

The Democratic Republic of the Congo (DRC) is facing a new Ebola outbreak since the official declaration of the Minister of Public Health, Hygiene, and Social Welfare on September 4, 2025 (1-2). The Sixteenth Ebola Virus Disease outbreak (EVD16) occurred in Bulape, a rural Health Zone close to Mweka where previous outbreaks occurred in 2007-2008.

After the official announcement of the EVD outbreak, most experts would have bet on a possible recurrence of the 2007-2008 viral strain originating in Mweka and Luebo, in the Province of Kasai, DRC. This implies the critical role the survivors would have played in the emergence of this new outbreak. In the world of Ebola, a question always stands “what is the concerned strain?”. This question is crucial, especially when we know the pivotal role the identification of the virus plays in the implementation of medical countermeasures (3-4). If the DRC has faced iterative EVD outbreaks over the last decade (5), the in-country expertise in the management of emergencies has steadily grown. This enhanced knowhow has led to accurate and efficient interventions in the field during outbreaks with highest impact, such as Ebola, Covid-19, Mpox, etc. The key points that should immediately retain the reader's attention are summarized in he lines below, aiming to provide brief but relevant information.