Tracking Emerging Public Health Challenges.

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EBOLA. “The Ebola outbreak currently ravaging the Democratic Republic of the Congo (DRC) was caused by a new transmission from animals to humans rather than by variants linked to earlier outbreaks, according to a new study published in the medical journal Nature Medicine.”

JONATHAN M. METSCH, Dr.P.H. Tracking Emerging Public Health Challenges   –   August 15, 2026 -EBOLA

The virus in eastern DRC has killed more than 2,000 people of 4,449 recorded cases, making it the fastest-moving Ebola outbreak on record. It was formally declared on May 15 , though genetic sequencing later revealed the virus had actually begun circulating in February.”

“The animal source has not been specified but the researchers said the outbreak in Uganda was linked to the outbreak in the DRC.”

““What the genomic data suggest is that the current outbreak began with a new ‘zoonotic spillover’ event – meaning the virus likely crossed independently from an animal reservoir into a person – rather than resulting from continued circulation or re-emergence of virus from a previous human outbreak,” she said.

“After that initial spillover, the outbreak has been driven predominantly by human-to-human transmission,” she added.” (1)

“The Ebola outbreak in the Democratic Republic of the Congo has spread to a sixth province, officials have said, a day after the head of the World Health Organization said the outbreak was on track to surpass the deadliest in history, which killed at least 11,000 people more than a decade ago.

The current outbreak has killed more than 2,100 people out of more than 4,500 cases, according to the latest government figures released on Tuesday. At the same point in the 2014-16 outbreak in west Africa, the previous most deadly outbreak, 755 cases had been recorded, according to WHO data.

Jean Kaseya, the director general of Africa CDC, said on Thursday that a death had been recorded in the previously unaffected Bas-Uele province. The man had travelled from Isiro, in Haut-Uele province, to Buta, the capital of Bas-Uele, where he died, Kaseya said.

Six of DRC’s 26 provinces have now been affected, mainly those along the country’s north-eastern border. More than 3,400 of the cases have been recorded in Ituri province, where the outbreak was first reported.” (2)

“The vaccines and treatments that worked great against the Zaire strain years ago might not be very effective against this new Bundibugyo version. Because it is so different, the medicines we currently have on the shelf are not officially approved to fight this specific type of disease.

This tricky genetic twist means that frontline doctors are fighting a massive health battle without their best and most reliable medical tools.

Scientists are working around the clock to test out brand new treatments and vaccines that can specifically target this nasty new viral threat. New medical tools like the mRNA technology we used recently could help experts build effective vaccines much faster than they ever could before.” (3)

The Ebola virus in the Democratic Republic of Congo is now killing a victim every 30 minutes, a top UN humanitarian official said on Friday, August 14, calling for greater international action. “The outbreak is the fastest growing on record,” Tom Fletcher, under secretary general for humanitarian affairs, said in a statement. “We need speed, scale and solidarity before this virus gets even further ahead of us.”

The outbreak has killed at least 2,128 people out of more than 4,500 confirmed cases since being declared in the DRC on May 15. The UN has already said it is on course to become the deadliest Ebola eruption ever.

“”Ebola is winning in the Democratic Republic of the Congo. We cannot let the virus outrun our response,” Fletcher said as he outlined the latest efforts to contain the virus, which spreads through contact with bodily fluids and causes a haemorrhagic fever. “The epidemic is killing someone every 30 minutes,” said Fletcher, who warned that “many more people are at risk.” Fletcher said countries had now donated nearly $300 million to a fund to combat the outbreak.”

“”We need to double the number of teams ensuring safe and dignified burials, triple the treatment capacity, improve contact tracing and deploy more experienced managers,” said Fletcher. “Crucially, we must meet the immense needs for water, hygiene, health care and other basic services in the region.” He said: “The world needs to wake up, and show up.”” (4)

“Every day, community health worker Gédéon Banga Ngbape and his team fan out across communities in eastern Congo looking for people who may have crossed paths with the country’s fastest-growing Ebola outbreak in history.

The workers investigate dozens of alerts, search for those exposed to suspected or confirmed cases and try to get anyone showing symptoms into care before the virus spreads further.

But the surveillance system is increasingly failing to keep pace with the virus. Between 60% and 70% of new Ebola cases are being detected among people who were not already being monitored as contacts, meaning health workers may only discover infections after patients become sick and have had opportunities to expose others.

“If surveillance does not work well, the entire response suffers,” Ngbape said. “Surveillance is the engine of a response.””

“In Nizi, Ngbape’s surveillance teams say they receive an average of 60 to 70 alerts a day. They move through communities to investigate suspected infections, follow people who have been in contact with suspected or confirmed cases and direct those showing possible symptoms to health facilities.

The work can stretch deep into the night.

“I leave in the morning at 8 and return around 11 p.m., sometimes midnight,” Ngbape said. “I still have to follow up and plan the next activities. I feel really tired, but what matters to me is always being of service to the community.”

He did not say how many days a week he works or how often he is able to take time off.

Community health workers who go door to door face risks of their own. Ana Ndroy Kasime, a community health worker in Nizi, said she visits homes to educate residents about Ebola and reports suspected cases to health officials. But she said workers like her lack basic protective supplies.”” (5)

1.Ebola outbreak caused by new ‘animal transmission’: What that means, By Priyanka Shankar, https://www.aljazeera.com/news/2026/8/13/ebola-outbreak-caused-by-new-animal-transmission-what-that-means

2.DRC’s fast-growing Ebola outbreak spreads to sixth province, by Rachel Savage,  https://www.theguardian.com/world/2026/aug/13/ebola-drc-democratic-republic-congo-sixth-province

3.Deadly Ebola Outbreak Kills Over 2,000 — What Americans Need to Know, By Confidence Anadi, https://www.fodmapeveryday.com/deadly-ebola-outbreak-kills-over-2000-what-americans-need-to-know/

4.Ebola outbreak in DR Congo killing one person every 30 minutes, UN says, by Le Monde with AFP, by Le Monde, https://www.lemonde.fr/en/international/article/2026/08/14/ebola-outbreak-in-dr-congo-killing-one-person-every-30-minutes-un-says_6756522_4.html

5.Exhausted health workers in Congo struggle to keep up as Ebola outpaces contact tracing, By  CONSTANT SAME BAGALWA and MARK BANCHEREAU, https://apnews.com/article/congo-ebola-contact-tracing-surveillance-workers-57c20999e2acfb4e8e3ea576078d063d

curated by Jonathan M. Metsch, Dr.P.H.

Clinical Professor of Environmental Medicine, Icahn School of Medicine at Mount Sinai

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