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Reports of Malaria in the Dominican RepublicUpdated: December 17, 2004
The Public Health Agency of Canada (PHAC) continues to closely monitor for reports of malaria in tourists who have visited the province of La Altagracia in the Dominican Republic . At this time, PHAC has not received any additional reports of malaria in Canadian travellers returning from the province of La Altagracia in the Dominican Republic . To date, PHAC has been notified of a total of six lab-confirmed cases of P. falciparum malaria in Canadian travellers who travelled to Punta Cana in the DR since mid-October. For the two cases reported from the province of British Columbia , one case has recovered and the other case remains in hospital. Of the four cases reported from the province of Ontario , three have recovered and one remains in hospital. To date, the United States has reported 2 cases in returning travellers; with travel to Punta Cana and San Francisco de Macoris respectively. Several cases are also being reported in European travellers returning from both Punta Cana (7 cases) and Playa Bavaro (1 case). The Pan American Health Organization (PAHO) is working with the Ministry of Health in the Dominican Republic to ensure that intensive measures to interrupt transmission of malaria, including intensified surveillance and vector control, are being implemented in the Province of La Altagracia . The Agency continues to collaborate with the US Centers for Disease Control and the Pan American Health Organization in the monitoring and reporting of new cases of malaria in returning travellers from the Dominican Republic . Source: US Centre for Disease Control, TropNetEurop. Malaria is known to be endemic (i.e., constantly occurring) in rural areas of the Dominican Republic , with the highest risk in areas bordering Haiti . Resort areas are generally not risk areas. However, occasional outbreaks of malaria transmission can occur in these malaria-free areas due to the presence of the mosquito vector and the movement of people from the areas where transmission occurs. The Dominican Republic reports approximately 1000 cases of malaria annually. This year, more than 2000 cases have been reported with an outbreak of cases occurring in previously malaria-free areas. This phenomena may be due to several factors including two recent hurricanes which have affected the island, an increase in the population of the mosquito vector (Anopheles) and the movement of many construction workers from rural areas into tourist areas. In 1998, a localized outbreak of malaria occurred in a tourist area of eastern DR (Bavaro-Punta Cana). Although all malaria in the DR is due to P. falciparum , no drug resistance has been documented. In consultation with the Malaria Sub-Committee of the Committee to Advise on Tropical Medicine and Travel (CATMAT), the Public Health Agency of Canada recommends the following for travellers to the DR at this time: RecommendationsThe Public Health Agency of Canada strongly recommends that you obtain an individual risk assessment with a travel medicine physician or your family physician to determine both your risk of exposure to malaria and your need for appropriate preventative anti-malarial treatment as determined by your travel itinerary and medical history. Two important measures can help you prevent malaria infection: avoiding mosquito bites and using effective anti-malarial medications. Personal Measures to Avoid MosquitoesFemale Anopheles mosquitoes bite mainly during the evening and night. Using personal insect protective measures will reduce your risk of being bitten by these mosquitoes.
Antimalarial Medication (Prophylaxis)Antimalarial medications decrease the risk of developing symptomatic malaria. However, they do not provide 100% protection against the disease. Your individual need for antimalarial medications should be discussed with your physician or travel medicine professional several weeks before travel. If your physician or travel medicine clinic prescribes an antimalarial medication, it is important that you take it as directed in order to maximize the protective effect. Each drug has its own dosing regime that should be strictly followed. Because of the incubation period of the disease, these medications must be taken both before and after travel. Important to NoteIf you develop a fever within 3 months after returning from an area where malaria occurs, you should seek medical advice immediately. Be sure to inform your physician that you have visited an area where malaria occurs so that you can be tested without delay. Malaria must be ruled out by the examination of one or more blood films under a microscope. For additional information on malaria:
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Last Updated: 2004-12-17 | ![]() |