Haiti cholera outbreak

Haiti cholera outbreak

Date	October 2010-present
Location	Artibonite Valley, Haiti
Casualties
9,372 dead (all countries)  Haiti 8,896 dead (28 Feb 2015)[1]  Dominican Republic 472 dead (Nov 2014)[1]  Cuba 3 dead (Jun 2012)[2]  Mexico 1 dead (18 Oct 2013)[1]
417,905 hospitalised (Haiti)[2][1]
cases: 734,134 (Haiti), 31,681 (DR), 678 (Cuba), 190 (Mexico) cases recorded in:  Florida Venezuela Haiti  Cuba Mexico Dominican Republic

The ongoing Haiti cholera outbreak is the worst epidemic of cholera in recent history, according to the U.S. Centers for Disease Control and Prevention.^[3] After the 2010 earthquake, in little over two years, as of August 2013, it has killed at least 8,231 Haitians and hospitalized hundreds of thousands more while spreading to neighboring countries including the Dominican Republic and Cuba.^[4] Since the outbreak began in October 2010, more than 6% of Haitians have had the disease.^[5] Despite having made significant progress from previous years, in 2014 cholera still sends thousands to hospitals every month and remains deadly.

The outbreak began in mid October 2010 in the rural Center Department of Haiti,^[6] about 100 kilometres (62 mi) north of the capital, Port-au-Prince, killing 4672 people by March 2011^[7] and hospitalising thousands more.^[8] The outbreak occurred ten months after a powerful earthquake which devastated the nation's capital and southern towns on 12 January 2010. By the first 10 weeks of the epidemic, cholera spread to all of Haiti's 10 departments or provinces.^[9]

As of 12 December 2012, hospitalizations (2,300 per week) and deaths (40 per week) are roughly triple since Hurricane Sandy struck the island in what was expected to be a quiet cholera season, causing more deaths than the cyclone took in all countries combined.^[1] In November 2010, the first cases of cholera were reported in the Dominican Republic and a single case in Florida, United States; in January 2011, a few cases were reported in Venezuela. The epidemic came back strongly in the 2012 rainy season, despite a localised delayed vaccine drive. In late June 2012, Cuba confirmed three deaths and 53 cases of cholera in Manzanillo,^[10] in 2013 with 51 cases in Havana.^[11] Vaccination of half the population is urged by the University of Florida to stem the epidemic.^[12][13]

Background

Poor neighborhood in Port-au-Prince

During the 19th and 20th centuries, six major cholera pandemics had spread around the world. At the time of this outbreak, the world was experiencing the seventh, caused by a new strain of the Vibrio cholerae bacterium, El Tor. Epidemics involving this strain started in 1961 in Indonesia, and spread rapidly elsewhere in eastern Asia and then to India and Bangladesh, the USSR, Iran and Iraq.^[14] This was the first outbreak in Haiti ever recorded of El Tor.^[15] Professors at Duke University have argued that none of the previous pandemics affected Haiti either.^[16]

On 21 October 2010, the Haiti National Public Health Laboratory confirmed that cases of diarrheal illness that hospitals in the Artibonite region had been receiving had been identified as cholera.^[17] Haiti has not had a cholera outbreak in recorded history, so it triggered panic and confusion in the populace, complicating relief efforts.^[18]

The spread was partially blamed on the poor distribution of health supplies due to logistical problems.^[9] The Pan-American Health Organization said there was also a lack of access to untainted drinking water.^[9] According to the US CDC, in most instances cholera does not spread widely within countries where drinking water and sewage treatment are adequate. When water and sewage treatment is inadequate, as in Haiti after the 2010 earthquake, cholera can spread rapidly.^[19]

On 28 October, the head of Haiti's health department, Gabriel Thimoté, said 4,147 people were being treated. WHO's cholera chief, Claire-Lise Chaignat, said the epidemic was not contained and that she thought it had not yet "reached the peak", so Haitian authorities should be prepared for a "worst-case scenario" of cholera spreading in the capital, Port-au-Prince.^[20]

On 10 November, Gabriel Thimote, Haiti's senior health official, said that the outbreak was "no longer a simple emergency, it's now a matter of national security."^[21]

The outbreak of cholera became an issue for candidates to answer in the 2010 general election.^[22] There were fears that the election could be postponed. The head of MINUSTAH Edmond Mulet said that it should not be delayed as that could lead to a political vacuum with untold potential problems.^[23]

Sources

Artibonite River

The suspected source for the epidemic was the Artibonite River, from which most of the affected people had drunk water.^[8] Suspicion among Haitians centered on a UN military base on a tributary of that river home to peacekeepers from Nepal.^[24] MINUSTAH officials issued a press statement denying the possibility that the base could have caused the epidemic, citing stringent sanitation standards.^[25] The next day, October 27, reporter Jonathan M. Katz of the Associated Press visited the base and found gross inconsistencies between the statement and the base's actual conditions. Katz also happened upon UN military police taking samples of ground water to test for cholera, despite UN assertions that it was not concerned about a possible link between its soldiers and the disease. Neighbors told the reporter that waste from the base often spilled into the river.^[26] Later that day, a crew from Al Jazeera English including reporter Sebastian Walker filmed the soldiers trying to excavate a leaking pipe; the video was posted online the next day and, citing AP's report, drew increased awareness to the base.^[27] MINUSTAH spokesmen later contended that the samples taken from the base proved negative for cholera. However, an AP investigation showed that the tests were improperly done at a laboratory in the Dominican Republic with no experience of testing for cholera.^[28]

The U.S. Centers for Disease Control and Prevention said its tests of "DNA fingerprinting" showed various samples of cholera from Haitian patients were identified as Vibrio cholerae serogroup O1, serotype Ogawa, a strain found in South Asia.^[29][30]

For three months, UN officials, the CDC, and others argued against investigating the source of the outbreak. Gregory Hartl, a spokesman for the World Health Organization (WHO), said finding the cause of the outbreak was "not important". "Right now, there is no active investigation. I cannot say one way or another [if there will be]. It is not something we are thinking about at the moment. What we are thinking about is the public health response in Haiti."^[31] Jordan Tappero, the lead epidemiologist at the CDC, said the main task was to control the outbreak, not to look for the source of the bacteria and that "we may never know the actual origin of this cholera strain."^[32] A CDC spokesperson, Kathryn Harben, added that "at some point in the future, when many different analyses of the strain are complete, it may be possible to identify the origin of the strain causing the outbreak in Haiti."

Paul Farmer, co-founder of the medical organisation Partners In Health and a UN official himself who served Bill Clinton's deputy at the Office of the Special Envoy for Haiti, told the AP's Katz on November 3 that there was no reason to wait. "The idea that we'd never know is not very likely. There's got to be a way to know the truth without pointing fingers." A cholera expert, John Mekalanos, supported the assertion that it was important to know where and how the disease emerged because the strain is a "novel, virulent strain previously unknown in the Western Hemisphere and health officials need to know how it spreads." The Swedish ambassador to Haiti said the epidemic had strains originating in Nepal.^[33] However, Nepal's representative to the United Nations "categorically refuted" the hypothesis that Nepali peacekeepers were the source of the outbreak.^[34]

Under intense pressure, the UN relented, and said it would appoint a panel to investigate the source of the cholera strain.^[35] That panel's report, issued in May 2011, confirmed substantial evidence that the Nepalese troops had brought the disease to Haiti. However, in the report's concluding remarks, the authors hedged to say that a "confluence of circumstances" was to blame.^[36] Even so, the report presented no alternate hypotheses about how the strain could have arrived in a remote river far outside the earthquake zone, where few foreigners visit or work.

Some US professors have disagreed with the contention that Nepalese soldiers caused the outbreak. Some said it was more likely dormant cholera bacteria had been aroused by various environmental incidents in Haiti.^[37] Before studying the case, they said a sequence of events, including changes in climate triggered by the La Niña climate pattern and unsanitary living conditions for those affected by the earthquake, triggered bacteria already present to multiply and infect humans.^[37] However, a study unveiled in December and conducted by French epidemiologist Renaud Piarroux contended that UN troops from Nepal had started the epidemic as waste from outhouses at their base flowed into and contaminated the Artibonite River.^[38] A separate study published in December in the New England Journal of Medicine presented DNA sequence data for the Haitian cholera isolate, finding that it was most closely related to a cholera strain found in Bangladesh in 2002 and 2008. It was more distantly related to existing South American strains of cholera, the authors reported, adding that "the Haitian epidemic is probably the result of the introduction, through human activity, of a V. cholerae strain from a distant geographic source."^[39] Rita Colwell, former director of the National Science Foundation and climate change expert, still contends that climate changes were an important factor in cholera's spread, stating in an interview with UNEARTH News in August 2013 that the outbreak was "triggered by a complicated set of factors. The precipitation and temperatures were above average during 2010 and that, in conjunction with a destroyed water and sanitation infrastructure, can be considered to have contributed to this major disease outbreak."^[40]

Domestic reactions

There were fears that following the discovery of 15 cases in the capital, the epidemic could spread further.^[41] On 15 November, a riot broke out in Cap-Haïtien following the death of a young Haitian inside the Cap-Haïtien UN base and rumours that the outbreak was caused by UN soldiers from Nepal.^[42] Protesters demanded that the Nepalese brigade of the UN leave the country.^[43] At least 5 people were killed in the riots, including 1 UN personnel.^[44] Riots then continued for a second day.^[45]

Following the riots the UN said the outbreak was being staged for "political reasons because of forthcoming elections", as the Haitian government sent its own forces to "protest" the UN peacekeepers.^[46] During a third day of riots UN personnel were blamed for shooting at least 5 protestors but denied responsibility.^[47] On the fourth day of demonstrations against the UN presence, police fired tear gas into an IDP camp in the capital.^[48] Riots following the election were a cause for concern in the ability to contain the epidemic.^[49]

Initial spread

Having lost their homes in the 2010 earthquake, many Haitians still live in precarious camps without water and sewage systems

By the end of October cholera had been confirmed in four of Haiti's ten departments: Artibonite, Centre, Nord and Ouest, including the capital Port-au-Prince,^[8][50] and the capital's Cité Soleil district,^[51] By 16 November it had spread throughout the country.^[44] In addition to those hospitalized, others were unable to receive treatment due to overcrowded hospitals.^[52] Health workers also feared the disease would spread after Hurricane Tomas hit the island causing more flooding.^[53]

There were also fears that the disease would further spread because many people were still living in unsanitary camps as a result of the earthquake earlier in the year.^[54][55] Those concerns came despite claims that the outbreak had been contained in the north and central parts of the country.^[56] The Pan American Health Organisation predicted that 270,000 people would be infected within a year of the outbreak.^[21]

The first outbreak of cholera was reported in the Dominican Republic in mid-November 2010,^[57] following the Pan-America Health Organisation's prediction.^[21] By January 2011, the Dominican Republic had reported 244 cases of cholera.^[58] The first man to die of it there died in the province of Altagracia on 23 January 2011.^[58][59]

On 15 November the director of programming for Catholic Relief Services in Haiti, said, "Some people have been reporting that we've gotten in front of it and are in control of the spread of cholera. Actually WHO does not believe that. There's such a severe underreporting of cases that they're not sure of all of the hot spots."^[9][60]

In late January 2011, more than 20 Venezuelans were reported to have been taken to hospital after contracting cholera after visiting the Dominican Republic.^[61][62] 37 cases were reported in total.^[58] Contaminated food was blamed for the spread of the disease.^[63] Venezuelan health minister Eugenia Sader gave a news conference which was broadcast on VTV during which she described all 37 people as "doing well".^[58] The minister had previously observed that the last time cholera was recorded in Venezuela was twenty years before this, in 1991.^[58]

On 15 March 2011, a report was issued by the University of California that predicted total infections would number up to 779,000 and total deaths up to 11,000 by November 2011, compared with earlier UN estimates that around 400,000 people would end up infected.^[64] The revised numbers were based on more factors than the UN's estimates, which assumed a total infection rate of between two and four percent of the population.^[64] In a statement released at the same time, the WHO said total deaths thus far had reached 4,672, with 252,640 cases reported.^[64]

Casualties over the years

Even before the outbreak Haiti has suffered from infectious diseases due to crowded living conditions and lack of clean water and sewage disposal. There is also a chronic shortage of health care personnel, and hospitals lack resources, a situation that became readily apparent after the January 2010 earthquake.^[65]

Some aid agencies have reported that the toll may be higher than the official figures because the government does not track deaths in rural areas where people never reached a hospital or emergency treatment center.^[60] In 2011, reports suggested over 6,700 people had been killed during the outbreak.^[66]

By March 2011, after the initial intense flare up, some 4,672 people died and as of March 2012, cholera has killed more than 7,050 Haitians and sickened more than 531,000, or 5 percent of the population.^[64][67]

The next years there was significant progress reduction of caseloads and deaths, with solid backing of international medical efforts and preventative measures, including latrines installed and changes in Haitian behaviors, such as thoroughly cooking food and rigorous handwashing. However, roughly 75% of Haitian households lack running water and thousands still live in camps or similar substandard conditions. Despite all these efforts, every rainy season or hurricane has caused a temporary spike in cases and deaths. Per the Haitian Health Ministry, as of August 2012, the outbreak had caused 7,490 deaths and caused 586,625 people to fall ill.^[68] According to the Pan American Health Organization, as of 21 November 2013, there had been 689,448 cholera cases in Haiti, leading to 8448 deaths.^[69]

Political reactions

On 12 November 2010, the United Nations issued an appeal for around US$160 million to fight the spread of the disease, saying that "all our efforts can be outrun by the epidemic" and warned of a lack of space for patients in hospitals.^[70] It also denied that the Nepali contingent were responsible for the outbreak.^[44] In November 2011, the UN received a petition from 5,000 victims for hundreds of millions of dollars in reparations over the outbreak thought to have been caused by UN members of MINUSTAH.^[66] In February 2013, the United Nations responded by invoking its immunity from lawsuits under the Convention on the Privileges and Immunities of the United Nations.^[71] On October 9, 2013, BAI, IJDH, and Ira Kurzban’s law firm (KKWT) filed a lawsuit against the UN in the Southern District of NY federal court.^[72]

Further reading

• Katz, Jonathan M. The Big Truck That Went By: How the World Came to Save Haiti and Left Behind a Disaster. New York: Palgrave Macmillan, 2013. ISBN 978-0230341876
• Wilentz, Amy Farewell, Fred Voodoo: A Letter from Haiti. New York: Simon & Schuster, 2013. ISBN 978-1451643978

References

External links

Wikinews has news related to: 2010 Haitian cholera outbreak

• Centers for Disease Control page on the outbreak
• PAHO Situation Reports on the Haiti cholera outbreak
• Cholera Will Not Go Away Until Underlying Situations that Make People Vulnerable Change – video report by Democracy Now!
• Not Doing Enough: Unnecessary Sickness and Death from Cholera in Haiti, from the Center for Economic and Policy Research, August 2011
• Responding to the Cholera Emergency, in Best Practices and Lessons Learnt in Communication with Disaster Affected Communities, a infoasaid report, November 2011
• Rebuilding in Haiti Lags After Billions in Post-Quake Aid: Lofty Hopes and Hard Truths, New York Times Dec 2012
• Institute for Justice and Democracy in Haiti's cholera case with UN

Cholera Cholera Symptoms Treatment Prevention Susceptibility Transmission Diagnosis History Cholera bacteria Vibrio cholerae Strains: El Tor Discovery: 1854 Broad Street cholera outbreak John Snow Reverend Henry Whitehead Treatment Oral rehydration therapy Antibiotics: Tetracycline cotrimoxazole erythromycin doxycycline chloramphenicol furazolidone Fluoroquinolones: norfloxacin Outbreaks Cholera pandemics: First cholera pandemic Second cholera pandemic Third cholera pandemic Fourth cholera pandemic Fifth cholera pandemic Sixth cholera pandemic Seventh cholera pandemic Other outbreaks: 1854 Broad Street cholera outbreak 2007 Iraq cholera outbreak 2008 Congo cholera outbreak 2008–2009 Zimbabwean cholera outbreak 2010 Haiti cholera outbreak 2012 Sierra Leonean cholera outbreak 2014-2015 West and Central African cholera outbreak Index of bacterial disease Description Bacteria classification Growth media Disease Gram-positive firmicutes Gram-positive actinobacteria Gram-negative proteobacteria Gram-negative non-proteobacteria Cholera Tuberculosis Treatment Antibiotics cell wall nucleic acid mycobacteria protein synthesis other Antibodies Vaccines

Coordinates: 19°06′N 72°20′W / 19.100°N 72.333°W / 19.100; -72.333