Peter Piot calls for broad-spectrum vaccines to end Ebola outbreaks
- Fifty years after helping discover Ebola in a Belgian laboratory, virologist Sir Peter Piot is calling for universal family vaccines and broad-spectrum antivirals to break recurring cycles of...
- Fifty years ago, Piot opened a mysterious thermos sent from a clinic in Kinshasa containing a slurry of half-melted ice, a broken test tube, clotted blood, and a...
- The ongoing outbreak involving the Bundibugyo strain has affected close to 8,000 people, resulting in 3,761 confirmed deaths across the Democratic Republic of the Congo and Uganda.
Fifty years after helping discover Ebola in a Belgian laboratory, virologist Sir Peter Piot is calling for universal family vaccines and broad-spectrum antivirals to break recurring cycles of deadly outbreaks. Piot pointed to the aggressive Bundibugyo strain outbreak in the Democratic Republic of the Congo as evidence that current strain-specific defenses are no longer enough.
The Discovery of Ebola in 1976
Fifty years ago, Piot opened a mysterious thermos sent from a clinic in Kinshasa containing a slurry of half-melted ice, a broken test tube, clotted blood, and a handwritten note from a physician. The blood belonged to a Belgian nun struck down by an undiagnosed affliction. From that sample, Piot and his colleagues isolated the wormlike virus that would become known as Ebola. Examining early patients in the Congo, Piot observed severe cellular breakdown, uncontrollable vomiting, and sticky black bruises around the face.
Current Outbreak Pressures and Funding Challenges
The ongoing outbreak involving the Bundibugyo strain has affected close to 8,000 people, resulting in 3,761 confirmed deaths across the Democratic Republic of the Congo and Uganda. The virus has spread to South Ubangi province, located 1,000 kilometres from the epicenter. With no treatments available for the Bundibugyo strain, medical responders have administered a vaccine targeting the Zaire strain to provide partial protection. Piot noted that the situation will expand further before improving, warning that the spread into major cities remains a significant unknown.
Despite an influx of approximately $3 billion into the Democratic Republic of the Congo, fatalities continue to rise while frontline healthcare workers face severe operational hurdles. Piot criticized the ongoing financial breakdown on the front lines, stating Healthcare workers have not been paid for three months. They risk their lives every single day. They’re not paid so they go and strike. I mean, I would do the same. It’s a tragedy.
This dynamic feeds a recurring loop of zoonotic outbreaks, global panic, resource exhaustion, and eventual complacency.
The Search for Multi-Variant Vaccines and Antivirals
During a visit to the Doherty Institute in Melbourne, Piot discussed collaborative efforts to develop multi-variant vaccines and new antivirals to prevent future crises. While Nobel Prize winner Peter Doherty has described creating a multi-strain vaccine as harder than putting a man on the moon, recent scientific advancements offer a path forward. In June, University of Cambridge researchers trialled an artificial intelligence-designed vaccine on 39 people to target a range of Sarbeco coronaviruses, including COVID-19 and SARS. The Cambridge team used artificial intelligence to analyze thousands of related viral genomes, creating a super-antigen designed to stimulate an immune response across an entire viral family rather than a single spike protein. Although the Journal of Infection study reported only modest immune system impacts, researchers plan to apply the same artificial intelligence approach to multiple Ebola strains. Piot, who experienced a near-fatal COVID-19 infection and long COVID during the early months of the pandemic, maintains that broad-spectrum defenses are the ultimate holy grail for global health security.