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Merck and CEPI launch a $30 million program to create a cheaper, more stable Ebola vaccine, aiming to solve the cold-chain logistics that hinder responses in remote African regions.

In a major boost for epidemic preparedness, pharmaceutical giant Merck (MSD) and the Coalition for Epidemic Preparedness Innovations (CEPI) have launched a $30 million initiative to overhaul the world’s primary defense against Ebola. The partnership aims to develop an updated version of the Ervebo vaccine that is not only cheaper but also easier to store, addressing the logistical nightmares that plague outbreaks in remote regions.
The current Ervebo vaccine is a marvel of science, but it is fragile. It requires ultra-cold storage, a requirement that makes it incredibly difficult to deploy in the steaming rainforests of the Democratic Republic of Congo or rural Uganda. The new program targets improved "thermostability"—meaning the vaccine could potentially sit in a regular fridge rather than a specialized freezer. Additionally, the partners aim to boost production yields to lower the cost per dose, ensuring that low- and middle-income countries can afford to stockpile it.
“This is about equity as much as it is about chemistry,” says a CEPI spokesperson. “An Ebola vaccine is useless if you cannot get it to the village where the outbreak is happening because you lack a deep freezer. By fixing the storage issue, we are effectively expanding the map of where we can save lives.”
The collaboration involves Hilleman Laboratories and will explore a tiered pricing model, supplying public-sector buyers at significantly reduced rates. This ensures that profit margins do not become a barrier to containment during a crisis.
With Ebola outbreaks becoming more frequent due to climate change and human encroachment into wildlife habitats, the need for a robust shield is urgent. The Merck-CEPI project is a proactive step, fortifying the world’s arsenal before the next hemorrhagic fever emerges from the forest. It is a reminder that in the battle against viruses, logistics are just as lethal as the pathogen itself.
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