Cholera Vaccines Resume After 3-Year Global Shortage

After three years of fighting cholera with their hands tied, health workers finally have enough vaccines to stop outbreaks before they begin.

Global cholera vaccine production has doubled from 35 million doses in 2022 to nearly 70 million in 2025. That milestone means countries can now run preventive campaigns instead of only scrambling to contain outbreaks after people get sick.

Mozambique became the first country to restart preventive vaccination this month. The campaign comes at a critical time, as recent floods displaced hundreds of thousands of people and damaged water systems, creating perfect conditions for cholera to spread.

The country will receive 3.6 million doses, while the Democratic Republic of the Congo gets 6.1 million and Bangladesh receives 10.3 million. All three countries were chosen based on where the need is greatest and where vaccines will have the biggest impact.

The shortage began in 2022 when cholera cases surged worldwide. With only one manufacturer producing vaccines at the needed scale, health agencies had to choose between preventing future outbreaks or stopping current ones. Prevention lost that battle, forcing a reactive approach that cost lives.

Cholera spreads through contaminated water and causes severe diarrhea and dehydration. Without quick treatment, it can be deadly, especially in areas affected by conflict, poverty, or natural disasters that disrupt clean water systems.

Last year alone, more than 600,000 cholera cases and nearly 7,600 deaths were reported across 33 countries. The real numbers are likely much higher since many cases go unreported.

The Ripple Effect

Restarting preventive vaccination does more than protect individual communities. It breaks a dangerous cycle that's been building since 2021, when global cholera cases began rising year after year.

The one-dose vaccine provides at least six months of protection and can help control outbreaks quickly. Two doses extend that protection to three years, giving communities breathing room to improve water and sanitation systems.

This shift from reactive to preventive care means health workers can focus on long-term solutions instead of constantly fighting fires. It also frees up resources for building the infrastructure that will ultimately end cholera for good.

The increased supply came from years of collaboration between global health agencies, manufacturers, and partners working to expand production and ensure vaccines reach the hardest-hit areas first.

While vaccines are essential, they're just one tool in the fight against cholera. Lasting change requires investment in clean water, proper sanitation, and community health education.

For now, though, this moment marks a turning point in a battle that's been fought on the back foot for far too long.