Friday, October 29, 2010

MMWR Dispatch: Cholera Outbreak In Haiti

 


# 5019

 

 

The CDC’s MMWR occasionally will print a dispatch – a report (often from the field) designed to provide news and information about a recent or ongoing public health event.

 

Last night, a dispatch was released on the Haitian Cholera outbreak.

 

While it adds very little new to what has previously been reported by PAHO and the World Health Organization, this release warns clinicians to be mindful of the possibility that they might encounter imported cases of Cholera from travelers coming from Haiti.

 

Thus far, no such cases have been reported in the United States.

 

Additionally, it clearly and concisely summarizes the situation to date and provides some useful links.

 

 

Cholera Outbreak --- Haiti, October 2010

Dispatch

October 28, 2010 / 59(Dispatch);1-1

An outbreak of cholera is ongoing in Haiti. On October 21, 2010, toxigenic Vibrio cholerae O1, serotype Ogawa, biotype El Tor was identified by the National Laboratory of Public Health of the Ministry of Public Health and Population in Haiti. Identification of the isolate was confirmed by CDC. Antimicrobial susceptibility testing of selected V. cholerae O1 isolates conducted at the National Laboratory of Public Health and at CDC demonstrated susceptibility to tetracycline (susceptibility to this drug predicts doxycycline susceptibility), ciprofloxacin, and kanamycin; and resistance to trimethoprim-sulfamethoxazole, furazolidone, nalidixic acid, sulfisoxazole, and streptomycin.

 

As of October 27, a total of 4,722 cholera cases with onset during October 21--27 and 303 deaths had been reported in Haiti (1). Most cases have been reported from Artibonite Department (1), a rural but densely settled area with several small urban centers. In addition, probable cases have been identified elsewhere in Haiti, including Ouest Department, where the capital city of Port-au-Prince is located.

 

Cholera is transmitted through fecal contamination of water or food and causes an acute, severe, watery diarrhea that can result in hypovolemic shock and death if not treated with fluid replacement promptly. Epidemic cholera has not been reported previously from Haiti; the population is immunologically naïve and therefore highly susceptible to infection with V. cholerae (2--4). The outbreak appears to have spread from an initial concentration of cases in Artibonite Department. An international public health response, led by the Ministry of Public Health and Population and including technical support from the Pan American Health Organization, CDC, and other governmental and nongovernmental organizations, is under way. The emphasis of the response is on 1) minimizing mortality by using oral rehydration for most cases and intravenous rehydration for severely ill patients and 2) preventing infection by promoting water treatment, adequate sanitation and hygiene, and safe food preparation (5).

 

No cases of cholera in travelers from Haiti to the United States have been reported to CDC. Cholera is notifiable in all U.S. states and territories. Clinicians should promptly report known or suspected cases of cholera to state or local health departments. Health departments that identify suspected or confirmed cases of cholera in travelers who have arrived recently from Haiti should e-mail CDC at eocreport@cdc.gov. The potential for spread in the United States is low because U.S. water, sanitation, and food systems minimize the risk for fecal contamination of food and water.

 

CDC has provided prevention and treatment guidance for travelers to and from Haiti online (available at http://wwwnc.cdc.gov/travel/default.aspx). Health departments, especially in areas with large Haitian populations that might be more likely to include recent travelers to Haiti, should consider providing cholera information to clinicians. Clinicians serving Haitian populations should be aware of the recommendations for diagnosis and treatment.

 

More information on cholera, including recommendations for treatment, laboratory testing, and scientific publications, is available at http://www.cdc.gov/cholera. Further information regarding the outbreak in Haiti is available at http://www.cdc.gov/haiticholera.

Reported by

Ministry of Public Health and Population, Haiti. Pan American Health Organization. CDC.