Cholera: Epidemiological alerts and updates

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2018
  • 11 October 2018: Cholera – Epidemiological Update

    29 November 2016: Cholera – situation in the Americas – Epidemiological UpdateIn 2017, a total of 13,803 suspected cases of cholera were reported on the island of Hispaniola: 13,681 cases (including 159 deaths) in Haiti and 122 cases (including 4 deaths) in the Dominican Republic. To date in 2018, a total of 3,224 suspected cholera cases have been reported in Hispaniola, 96% in Haiti. In addition, Mexico reported a cholera case in June 2018.

  • 6 August 2018: Cholera – Epidemiological Update

    29 November 2016: Cholera – situation in the Americas – Epidemiological UpdateIn 2017, a total of 13,803 suspected cases of cholera were reported on the island of Hispaniola: 13,681 cases (including 159 deaths) in Haiti and 122 cases (including 4 deaths) in the Dominican Republic. Up to epidemiological week (EW) 29 of 2018, 2,883 cholera cases were reported on Hispaniola; 99% occurred in Haiti (2,843 cases, including 34 deaths). 

2017
  • 28 December 2017: Cholera – Epidemiological Update

    29 November 2016: Cholera – situation in the Americas – Epidemiological UpdateIn the Americas Region, between epidemiological week (EW) 1 and EW 50 of 2017, a total of 13,582 suspected cholera cases were reported on the island of Hispaniola, of which 99% occurred in Haiti (13,468 cases, including 157 deaths). 1 During the same period, 62 suspected cholera cases were reported in the Dominican Republic, including two deaths.

  • 4 May 2017: Cholera – Epidemiological Update

    29 November 2016: Cholera – situation in the Americas – Epidemiological UpdateBetween epidemiological weeks (EW) 1 and 14 of 2017, a total of 4,871 suspected cholera cases were reported in Haiti, including 69 deaths. During the same period, 62 suspected cholera cases were reported in the Dominican Republic, including two deaths.

  • 24 February 2017: Cholera – Epidemiological Update

    29 November 2016: Cholera – situation in the Americas – Epidemiological UpdateBetween epidemiological week (EW) 1 and 5 of 2017, a total of 1,897 cholera cases were reported in Haiti, including 28 deaths. In the Dominican Republic, from the beginning of the year to EW 2 of 2017, there were 7 suspected cholera cases and 2 confirmed cases reported, including one death.

2016
  • 29 November 2016: Cholera - situation in the Americas - Epidemiological Update

    29 November 2016: Cholera – situation in the Americas – Epidemiological UpdateBetween epidemiological week (EW) 1 and EW 43 of 2016, a total of 35,755 cholera cases were reported in four countries of the Americas: the Dominican Republic (1,097), Ecuador1 (1), Haiti (34,656), and Mexico (1). Of the total cases, 97% were reported in Haiti.

  • 18 October 2016: Cholera - situation in the Americas - Epidemiological Update

    18 October 2016: Cholera – situation in the Americas – Epidemiological UpdateBetween epidemiological week (EW) 1 and EW 38 of 2016, a total of 29,630 cholera cases were reported in four countries of the Americas: the Dominican Republic (1,069), Ecuador  (1), Haiti (28,559), and Mexico (1). Of the total cases, 96.4% were reported in Haiti.

  • 12 September 2016: Cholera – situation in the Americas – Epidemiological Update

    12 September 2016: Cholera – situation in the Americas – Epidemiological Update

    Between epidemiological week (EW) 1 and EW 34 of 2016, a total of 27,839 cholera cases were reported in three countries of the Americas: the Dominican Republic (1,039), Ecuador1 (1), and Haiti (26,799). Haiti alone accounts for 96% of all cholera cases reported in the Region of the Americas up to EW 33 of 2016. Table 1 shows the number of cholera cases reported in selected countries between 2010 and 2016. Figure 1 illustrates the distribution of cumulative cases of cholera in Hispaniola.

  • 21 July 2016: Cholera – situation in the Americas – Epidemiological Update

    21 July 2016: Cholera – situation in the Americas – Epidemiological Update

    Since epidemiological week (EW) 1 of 2016 until EW 27, a total of 22,556 cholera cases have been recorded from three countries in the Americas: Ecuador (1), Haiti (21,661), and the Dominican Republic (894). Haiti alone registered 96% of the total cases in 2016 in the Region of the Americas. Table 1 shows the number of reported cholera cases in the Americas during 2015 and table 2 shows the cholera cases reported in selected countries from 2010 to 2016.

  • 27 May 2016: Cholera – situation in the Americas – Epidemiological Update

    27 May 2016: Cholera – situation in the Americas – Epidemiological Update

    Since epidemiological week (EW) 1 of 2016 until EW 17, a total of 14,574 cholera cases have been recorded from three countries in the Americas: Ecuador (1), Haiti (13,859), and the Dominican Republic (714). Haiti alone registered 95% of the total cases in 2016 in the Region of the Americas.

  • 9 March 2016: Cholera – situation in the Americas – update

    23 December 2015: Cholera – situation in the Americas – update

    In 2015, a total of 36,654 cholera cases have been recorded from three countries in the Americas: Cuba (65), Haiti (36,045) and the Dominican Republic (544). Haiti alone registered 98% of the total cases in the Region of the Americas.

2015
2014
2013
2012
  • 2 November 2012: Cholera – situation in the Americas – update

    Epidemiological AlertsRecent hurricanes, Sandy and Isaac, passed through several Caribbean countries, including Haiti, increased the risk of acute diarrheal diseases being transmitted by food and water and may require heightening the responsiveness of health systems in the affected areas. As such, the Pan American Health Organization / World Health Organization (PAHO / WHO) recommends that Member States take action to update their preparedness and response plans and strengthen their surveillance systems for early detection of outbreaks. Member States are called on to continue their efforts and implement actions to improve water quality and sanitation conditions.

  • 31 July 2012: Cholera – situation in the Americas

    Epidemiological AlertsThe Pan American Health Organization / World Health Organization (PAHO/WHO) reminds Members States that measures such as restrictions on movement of persons and seizure of goods produced under good manufacturing practices are unnecessary and ineffective to control the spread of cholera. Member States are encouraged to continue surveillance activities and to implement the recommended actions that reduce cholera spreading determinants.

  • 13 July 2012: Cholera – situation in the Americas

    Epidemiological AlertsThe Pan American Health Organization / World Health Organization (PAHO/WHO) reminds Members States that measures such as restrictions on movement of persons and seizure of goods produced under good manufacturing practices are unnecessary and ineffective to control the spread of cholera. Member States are encouraged to continue surveillance activities and to implement the recommended actions that reduce cholera spreading determinants.

  • 9 July 2012: Cholera – situation in the Americas

    Epidemiological AlertsThe Pan American Health Organization / World Health Organization (PAHO / WHO) reminds Members States that measures such as restrictions on movement of persons and seizure of goods produced under good manufacturing practices are unnecessary and ineffective to control the spread of cholera. Member States are encouraged to continue surveillance activities and to implement the recommended actions that reduce cholera spreading determinants.

  • 4 May 2012: Cholera – situation in the Americas

    Epidemiological AlertsConsidering the start of the rainy season in Central America and the Caribbean, which increases the risk of transmission for various diseases, including cholera, the Pan American Health Organization/World Health Organization (PAHO/WHO) encourages Member States the continuation of surveillance efforts to detect the occurrence of outbreaks and implementing intervention actions to reduce cholera spread determinants.

2011
  • 26 July 2011: Cholera – situation in Haiti and the Dominican Republic – update

    Epidemiological AlertsIn Haiti, the national number of cases and hospitalizations has decreased in the past three weeks, following the increase which occurred between EW 20 and 25. At the local level two departments, Nord and Nord Ouest, recorded an increase in the number of new cholera cases and new hospitalizations since EW 22. Meanwhile, Port-au-Prince and the Centre, Grand Anse and Nippes departments which had recorded an increase in cases between EW 22 and 23, have recorded a decline for the past three weeks.

    While in Dominican Republic, the Ministry of Public Health reported that since the beginning of the outbreak up to EW 29 of 2011 they recorded a total of 13,200 suspected cholera cases and confirmed 87 deaths due to cholera. The Distrito Nacional and the provinces of Elías Piña, San Cristóbal, San Juan, San Pedro de Macoris, Santiago and Santo Domingo Este and Oueste registered the highest rates of cholera transmission.

  • 22 June 2011: Cholera – situation in Haiti and the Dominican Republic – update

    Epidemiological AlertsIn Haiti, the Ministry of Public Health and Population (MSPP) case surveillance system reported that as of EW 19 there was an increase in the number of new cholera cases and new hospitalizations in Port-au-Prince and in the Centre and Sud Est departments. For EW 22 and 23, five other departments (Arbonite, Grand Anse, Nippes, Nord and Ouest) experienced an increase in the number of new cases and new hospitalizations. This increase coincides with the start of the rainy season in Haiti.

    In Dominican Republic, the Ministry of Public Health reported that since the beginning of the outbreak up to EW 23 of 2011 there were 1,727 confirmed cases (191 in 2010 and 1,536 in 2011), including 46 deaths. The municipalities of Santa Domingo Este and Oeste, Distrito Nacional, San Pedro de Macoris, Santiago and San Cristóbal registered the highest rates of cholera transmission in the past two weeks.

  • 7 June 2011: Cholera – situation in Haiti and the Dominican Republic - Update

    Epidemiological AlertsIn Haiti, the Haitian Ministry of Public Health and Population (MSPP) case surveillance system eported that as of EW 19 there was an increase in the number of hospitalized patients in Port-au-Prince and the Centre department. This increase coincides with the beginning of the rainy season in Haiti.

    While in Dominican Republic, the Ministry of Public Health informs that since the beginning of the outbreak up to EW 20 of 2011 there were 1,329 laboratory confirmed cases (191 in 2010 and 1,138 in 2011), including 27 deaths. The Distrito Nacional and the provinces of Santiago, San Pedro de Macorís, La Romano and the border provinces of Independencia and Elías Piña also registered an increase in cases with respect to the previous weeks.

  • 20 May 2011: Cholera – situation in Haiti and Dominican Republic – update

    Epidemiological AlertsIn Haiti, since the beginning of the cholera outbreak, starting epidemiological week (EW) 42 in 2010, until May 10th, 2011, the MSPP registered a total of 302,401 cholera cases of which 53.8% (162,651) required hospitalization and 1.7% (5,234) died (global case-fatality rate). Since EW 19 an increase in the number of new hospitalizations is observed in comparison with previous weeks, especially in the South-East and North-West departments and in the capital city, Port-au-Prince. Additionally, Artibonite and Centre continue to report new cases.

    Since epidemiological week (EW) 16, the Dominican Republic's surveillance system is registering an increase in the number of suspected cases of cholera, principally in the peripheral area of Santo Domingo, near the river Ozama and Isabela. The increase of cases in Santo Domingo concurs with a raise in the temperature and frequency of rains, which originated flooding in different areas of Santo Domingo.

  • 17 March 2011: Cholera – situation in Haiti and Dominican Republic – update

    Epidemiological Alerts During Epidemiological Week 8 of 2011, at the national level, Haiti registered a decrease in the weekly incidence rate, which decreased from 10.2 cholera cases per 10,000 inhabitants in EW 7 to 7.6 cases per 10,000 inhabitants in EW 8. This was linked to an increase of 3.1% in the new cases registered as compared to the previous week. At the sub-national level, five departments (Grand Anse, Nord Est, Nord Ouest, Sud Este y Nord) registered an increase in their weekly incidence rate.

    While in the Dominican Republic, the Ministry of Health reported a total of 759 laboratory-confirmed cases of cholera, including six fatal cases, since the beginning of the outbreak up to EW 9.

  • 8 March 2011: Cholera – situation in Haiti and Dominican Republic – update

    Epidemiological Alerts During Epidemiological Week 7 of 2011, at the national level, Haiti registered an increase in the weekly incidence rate, which increased from 5.1 cholera cases per 10,000 inhabitants in EW 6 to 10.2 cases per 10,000 inhabitants in EW 7. This was linked to an increase of 4.2% in the new cases registered as compared to the previous week. At the sub-national level, five departments (Centre, Nippes, Ouest, Sud y Nord) registered an increase in their weekly incidence rate.

    While in the Dominican Republic, the Ministry of Health reported a total of 470 laboratory-confirmed cases of cholera, including four fatal cases, since the beginning of the outbreak up to EW 7.

  • 1 March 2011: Cholera – situation in Haiti and Dominican Republic – update

    Epidemiological Alerts Durante la semana epidemiológica 6 del 2011, Haití registró un descenso en la tasa de incidencia semanal a nivel nacional, la cual pasó de 11,4 a 5,1 casos de cólera por 10.000 habitantes. Esto correspondió a un incremento de 2,2% en el registro de casos nuevos con respecto a la semana anterior.  A nivel sub-nacional, dos departamentos aumentaron su tasa de incidencia semanal (Centre y Grand Anse). La tasa de letalidad hospitalaria a nivel nacional durante la semana epidemiológica 6 del 2011 fue de 1,3% mientras que la tasa de letalidad global para el mismo periodo fue de 1,9%.

    Mientras tanto, en República Dominicana el Ministerio de Salud Pública informó que desde el inicio del brote hasta la SE 6 del 2011 fueron confirmados por laboratorio 426 casos, incluidas tres  defunciones.

  • 23 February 2011: Cholera – situation in Haiti and Dominican Republic – Update

    Epidemiological AlertsDuring the epidemiological week 5 of 2011, at national level, Haiti registered an increase in the weekly incidence rate, which went from 8.1 cholera cases per 10,000 inhabitants in EW 4 to 11.4 cases per 10,000 inhabitants in EW 5. This was linked which is an increase of 5.2 % in the new case registered when compared to the previous week. At subnational level, three departments registered an increase in their weekly incidence rate (Nord, Nord Est and Ouest).

    While in Dominican Republic, the Ministry of Health reported a total of 380 laboratory-confirmed cases of cholera and three deaths from the beginning of the outbreak to EW 5.

  • 9 February 2011: Cholera – situation in Haiti and Dominican Republic – update

    Epidemiological AlertsIn Haiti,during the fourth EW of 2011 Haiti registered a decrease in the weekly incidence rate at the national level, which went from 13.6 cholera cases per 10,000 inhabitants in EW 3 to 8.1 cases per 10,000 inhabitants in EW 4. At department level, three departments (Artibonite, Grande Anse, Nord and Sud) increased their weekly incidence rate. The in-hospital case fatality rate at the national level in EW 4 of 2011 was 1.0%.

    While in the Dominican Republic, the Ministry of Public Health informed that since EW 45 of 2010 to EW 4 of 2011, there were 336 cases confirmed by laboratory and one death that happened in EW 2.

  • 31 January 2011: Cholera – situation in Haiti and Dominican Republic – update

    Epidemiological AlertsIn Haiti,during the third EW of 2011 Haiti registered an increase in the weekly incidence rate at the national level, which went from 10.1 cholera cases per 10,000 inhabitants in EW 2 to 13.6 cases per 10,000 inhabitants in EW 3, which is an increase of 6.9% in the new case registrered when compared to the previous week. Of all the departments, six, increased their weekly incidence rate (Centre, Ouest, Nippes, Sud Est, Nord-Est, and Nord-Ouest) and four showed a decrease (Artibonite, Grande Anse, Nord and Sud). The hospitalization case fatality rate at the national level in EW 3 of 2011 was 1.5%, two decimals above the previous week.

    While in the Dominican Republic, the Ministry of Public Health informed that since the beginning of the outbreak in EW 45 of 2010 to EW 2 of 2011, there were 263 cases confirmed by laboratory and one death that happened in EW 2.

  • 26 January 2011: Cholera – situation in Haiti and Dominican Republic – update

    Epidemiological AlertsIn Haiti, during the second EW of 2011 and for the third consecutive week, Haiti has registered a decrease in the weekly incidence rate at the national level. It decreased from 24.1 to 12.7 and to currently 10.1 cholera cases per 10,000 inhabitants. Three departments located in the north of the country, increased their weekly incidence rate (Nord, Nord Est, and Artibonite). At the national level, the in-hospital case fatality rate for week 2 of 2011 stayed at 1.3%. Very similar to the previous week which was 1.2%.

    While in the Dominican Republic, the Ministry of Public Health reported the first death caused by cholera in the province of Altagracia. Since the beginning of the outbreak in SE 45 of 2010 and as of to SE 2 of 2011 there were 244 laboratory confirmed cases.

  • 18 January 2011: Cholera – situation in Haiti and Dominican Republic – update

    Epidemiological AlertsIn Haiti, during the first EW of 2011 a decrease of 47% in the national incidence rate in comparison to previous week was reported. While in Dominican Republic the Ministry of Public Health informed that in the first week of the 2011 8 new cases were confirmed, raising the cumulative incidence to 160 cases. No deaths have been reported.

  • 11 January 2011: Cholera – situation in Haiti and Dominican Republic – update

    Epidemiological AlertsIn Haiti, during this 52nd epidemiological week, there has been a decrease in the incidence rate in two departments in the north and a turn in the departments in the south. While Dominican Republic, registered 154 cases of cholera distributed in 13 of the 31 provinces of the country; 66.9% of the cases were hospitalized.

2010
  • 23 December 2010: Cholera – situation in Haiti and Dominican Republic – update

    Epidemiological AlertsCurrently, in Haiti all ten department of Haiti have reported cases and deaths due to cholera. During the previous three epidemiological weeks, the highest cumulative incidence was observed in the departments of Artibonite (305 cases per 10,000 inhabitants) followed by Nord Ouest, Nord and Centre (with 190 and 185 and 167 cases per 10,000 inhabitants, respectively).
    In Dominican Republic, from EW 465 to EW 50, the Ministry of Public Health of the Dominican Republic recorded 73 laboratory confirmed cholera cases, of which 75% (55) were hospitalized. No deaths were ecorded. Also, 4 cases have been considered imported and 69 autochthonous.

  • 16 December 2010: Cholera – situation in Haiti and Dominican Republic – update

    Epidemiological AlertsCurrently, there are cases and deaths due to cholera in the 10 departments of Haiti. The highest cumulative incidence rate as of EW 49 was observed in the department of Artibonite with 290 cases per 10,000 inhabitants, followed by Nord Ouest, Centre and Nord with 172 and 146 and 143 cases per 10,000 inhabitants, respectively. These departments also recorded the highest cumulative incidence rates in the previous weeks.
    In Dominican Republic, from EW 467 to EW 49, the Ministry of Public Health of the Dominican Republic recorded 38 laboratory confirmed cholera cases, of which 27 were hospitalized. No deaths were recorded. Also, 2 cases have been considered imported and 36 autochthonous.

  • 7 December 2010: Cholera – situation in Haiti and Dominican Republic – update

    Epidemiological AlertsCurrently, in Haiti Currently, there are cases and deaths due to cholera in the 10 departments of Haiti. The highest cumulative incidence rate as of EW 48 was observed in the department of Artibonite with 274 cases per 10,000 inhabitants, followed by Nord Ouest and Centre with 149 and 145 cases per 10,000 inhabitants, respectively. These departments also recorded the highest cumulative incidence rates in the previous week.
    In Dominican Republic, From EW 46 to EW 48, the Ministry of Public Health of the Dominican Republic recorded 22 laboratory confirmed cholera cases, of which 15 were hospitalized. No deaths were recorded. Also, 2 cases have been considered imported and 20 autochthonous.

  • 1 December 2010: Cholera – situation in Haiti and Dominican Republic – Update

    Epidemiological AlertsCurrently, in Haiti there are cholera cases in the 10 departments of Haiti and deaths in 9 departments. The highest incidence rate registered is in the Artibonite department with 246 cases per 10,000 inhabitants, followed by Nord Ouest with 114 cases per 10,000 inhabitants and Centre with 102 cases per 10,000 inhabitants.
    In Dominican Republic, from the laboratory confirmation of the first case of cholera in EW 46, and as part of enhanced surveillance implemented by the Ministry of Public Health, a total of 9 cholera cases were detected of which four required hospitalizations. One case has been considered imported while the remaining eight cases were considered autochthons.

  • 23 November 2010: Cholera – situation in Haiti and Dominican Republic – update

    Epidemiological AlertsThe present report contains information about the cholerea cases in Haiti and the Dominican Republic. In Haiti the number of deaths at the national level, of the 1,415 deaths recorded by the MSPP, 67% occurred at the health services level, and 33% at the community level. The in-hospital case fatality rate at the national level is 2.3%. In the DOminican Repúblic, the IHR National Focal Point reported a confirmed imported cholera case in a 32-year-old male who was hospitalized after presenting an acute diarrheal syndrome. Later, other two cases were confirmed, all of them in Santo Domingo.

  • 17 November 2010: Cholera – situation in Haiti – update

    Epidemiological AlertsIn the EW 45 the first cholera cases were recorded in Port-au-Prince, with a total of 953 hospital admissions and 46 deaths, as of November 15. In Port-au Prince, the communities which currently register an increase in cases are Carrefour, Cité Soleil, Delmas, Kenscoff, Petion Ville and Tabarre.

  • 7 November 2010: Cholera – situation in Haiti – update

    Epidemiological Alerts As of EW 44, and at the national level, a total of 544 deaths have been recorded, 57% of which have occurred at the health services level, and 43% at the community level. The daily case fatality rates observed in health services at the national level have ranged from 2.2% to 6.0% (3.8% average). Alternatively, in the department of Artibonite, this rate has ranged from 1.2% to 6.8% (3.5% average). The impact of efforts undertaken to improve case management and access to health services on recorded case fatality rates is being analyzed.

  • 31 October 2010: Cholera – situation in Haiti – update

    Epidemiological Alerts The purpose of this Epidemiological Alert is to recall that the orientations of the Organization related to travel and international trade are still in effect.

  • 28 October 2010: Cholera – situation in Haiti – update

    Epidemiological AlertsRecent antimicrobial susceptibility testing of V. cholerae isolated in Haiti, conducted by the National Laboratory of Public Health and the Center for Disease Control and Prevention (CDC), shows resistance to trimethroprim-sulfamethoxazole, furazolidone, nalidixic acid, and streptomycin. Therefore, the purpose of this alert is to share the provisional recommendations regarding treatment of patients with cholera, based on the susceptibility pattern of the strains isolated to date in Haiti.

  • 27 October 2010: Cholera – situation in Haiti – update

    Epidemiological Alerts Starting in Epidemiological Week (EW) 41, an increase in acute diarrhea cases, with severe cases and deaths, was observed in the departments of Artibonite and Central. In EW 42, isolation of V. cholerae O: 1 serotype Ogawa was confirmed in samples from hospitalized patients.

  • 24 October 2010: Cholera – situation in Haiti

    Epidemiological AlertsAnte la actual situación de cólera en Haití y dado el riesgo de reintroducción del cólera a otros países de la Región, la Organización Panamericana de la Salud recomienda a los Estados Miembros redoblar los esfuerzos de vigilancia, actualizar los planes de preparación y respuesta e implementar las medidas de prevención y promoción de la salud apropiadas.

  • 22 April 2009: Cholera – case in Paraguay

    On 7 April 2009, the Ministry of Public Health and Social Welfare of Paraguay received laboratory confirmation of a case of cholera arising from Vibrio cholerae O:1 Ogawa, biotype El Tor, toxin producing. The date on onset of symptoms was 6 March, originating in an indigenous community in the Paraguayan Chaco region. Since then, three outbreaks of acute diarrheal disease were detected, with 15 reported cases (though the total number is undetermined) and 3 deaths. Regional health authorities have taken successful measures to assure safe drinking water in the affected areas (chlorination, boiling water, purchase of mineral water) and the situation has been contained, which leads us to believe that transmission was water borne.

2009
2004

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