🪖 MINUSTAH · Haiti · 2011–2012
🧫 Cholera · Asymptomatic Carriage · Public Health
I Was a Military Doctor in Haiti.
This Is the Cholera Case That Changed Me.
From 2011 to 2012, Dr. Alberto served as a medical captain in a Brazilian battalion in Haiti. He was there during one of the most medically significant — and troubling — episodes in modern public health history. This is what he saw, what happened, and what Haiti is living through today.
By Dr. Alberto, MD | Infectious Disease Specialist | 2026 | Sources: Lancet · PAHO · UN
Dr. Alberto in Haiti — Nine Months With MINUSTAH
Between 2011 and 2012, Dr. Alberto served as a medical captain in a Brazilian battalion as part of MINUSTAH — the Mission des Nations Unies pour la Stabilisation en Haïti, the United Nations Stabilization Mission in Haiti. Nine months on the ground. He saw cases of malaria. He saw a case of cholera he would never forget. And he has been following Haiti’s situation ever since.
The context for his mission was a country already devastated. In January 2010, Haiti had suffered one of the most destructive earthquakes in the Western Hemisphere in modern history. Port-au-Prince was largely destroyed. Thousands died. Those who survived were often relocated to crowded makeshift camps with no sanitation infrastructure, no running water, and no reliable access to healthcare. The conditions for a waterborne disease outbreak were already present. All that was needed was the pathogen.
How Cholera Arrived in Haiti
Haiti had no endemic cholera. The country had not experienced a cholera outbreak in living memory. That changed in October 2010, when cases began appearing near the Artibonite River.
January 2010
Devastating earthquake strikes Haiti
Port-au-Prince destroyed. Thousands dead. Survivors in crowded makeshift camps. No sanitation, no clean water. The environment becomes ideal for waterborne disease transmission.
Mid-2010 — Nepalese contingent arrives
UN peacekeepers from Nepal pass medical inspection
All soldiers are screened and declared clinically healthy. No signs of cholera. They pass. This is not a failure of diligence — it is a failure of the screening protocol to account for asymptomatic carriage.
October 2010 — the contamination
Sewage from the battalion enters the Artibonite River
The wastewater system at the Nepalese battalion’s camp was inadequate. Sewage contaminated the river. The Artibonite River is a primary water source for a large area of Haiti. Cholera begins to spread.
2010–present
Epidemic established — continues to this day
Haiti had no natural immunity to cholera. The disease spread rapidly through a population with no sanitation, no treatment infrastructure, and living in the post-earthquake crisis. The epidemic was massive — and never fully extinguished. Cholera remains endemic in Haiti today.
The Key Concept — Asymptomatic Carriage
To understand how a military contingent that passed a medical inspection could introduce an epidemic, you need to understand asymptomatic carriage.
🧫 Asymptomatic carriage of Vibrio cholerae
A person can carry
Vibrio cholerae — the bacterium that causes cholera — in their gut without developing any symptoms of disease. They feel healthy. They appear healthy. Clinical examination reveals nothing. But they shed the bacteria in their stool — and in environments where fecal matter can contaminate water supplies, this is sufficient to trigger an outbreak.
This is not a rare phenomenon. Studies suggest that for every symptomatic cholera case, there are 3 to 100 asymptomatic or mildly symptomatic carriers in an outbreak setting. Standard medical screening for cholera — checking for symptoms — will miss all of them.
The Molecular Proof
There was initial resistance to attributing the Haitian epidemic to the Nepalese contingent. The link was established definitively through molecular epidemiology.
🔬 How science confirmed the source
Researchers performed genomic sequencing of the
Vibrio cholerae strain circulating in Haiti and compared it to strains circulating in Nepal at the same time. The result: they were genetically identical — the same variant, the same strain. The probability of this being a coincidence was vanishingly small. The Haitian epidemic had been seeded by the Nepalese contingent. The UN eventually acknowledged this formally, and issued an apology recognizing a protocol failure in screening for asymptomatic carriers.
The Cholera Case Dr. Alberto Saw
When Dr. Alberto arrived for a shift at an infirmary shared by several battalions — not his own battalion’s, but one where he pulled rotating duty — he encountered something he had read about but never seen.
“There was a patient lying on a stretcher — the kind that has a hole underneath to drain feces — lying in a pool of feces. I looked at it, shocked. ‘This is cholera.’ I went to check his medical chart. And it really was cholera. I had never seen it before.”
— Dr. Alberto
Cholera produces what clinicians describe as “rice-water stools” — profuse, watery, odorless diarrhea that can cause severe dehydration and electrolyte depletion within hours. The stretchers used in cholera wards have holes to allow continuous drainage. The volume of fluid loss can be extraordinary. In a patient without intravenous rehydration, death can come within hours. In Haiti’s post-earthquake conditions, treatment was not always available.
Haiti Today — 2026
When Dr. Alberto looks at Haiti today, he sees a country still suffering — and now facing an overlapping crisis of infectious diseases on top of ongoing gang violence that prevents the population from accessing healthcare.
Cholera — ongoing. The 2010 epidemic was never eliminated. Cases continue to be reported.
Malaria — Dr. Alberto saw cases during his MINUSTAH service. Still active today.
Dengue fever — confirmed cases ongoing. Mosquito control is impossible in current conditions.
Tuberculosis — among the highest burden in the Americas. Overcrowding drives transmission.
⚠️ The compounding crisis
Gang violence now controls large parts of Port-au-Prince and other regions. Criminals prevent the population from reaching hospitals. Medical workers are at risk. The combination of epidemic disease, destroyed sanitation infrastructure, and gang-controlled territory makes this one of the most difficult public health situations in the Western Hemisphere.
💬 Dr. Alberto's reflection
“For me, the experience of having gone to work in Haiti for nine months was truly a profound and very rewarding chapter in my military career — and equally impactful for me as a doctor. If I ever have the opportunity to do it all over again, I would go back in a heartbeat. They are a suffering people. It’s very sad.”
A
Dr. Alberto
Physician and infectious disease specialist. Served as medical captain in a Brazilian battalion, MINUSTAH, Haiti, 2011–2012. Founder of No Infection Consulting & Education and the YouTube channel Infectious Diseases in Focus.
Medical Disclaimer: This article is for educational and informational purposes. Dr. Alberto’s service with MINUSTAH is described from personal recollection. Epidemiological data is drawn from published scientific literature and WHO/PAHO sources.