Because P. falciparum malaria can be rapidly fatal, travelers and clinicians need to be aware of malaria risk areas so that travelers can take appropriate preventive measures, and, in case of febrile illness, obtain timely and accurate diagnosis and treatment.
In November 2004, CDC received reports of two cases of laboratory confirmed Plasmodium falciparum malaria in American travelers returning from a resort area in La Altagracia Province and from urban areas in DuarteProvince.
An additional 14 cases of malaria were reported in European and Canadian travelers who had visited resorts in La Altagracia Province.