Pediatric malaria in Houston, Texas

Area of Science:

• Pediatric infectious diseases
• Tropical medicine
• Epidemiology

Background:

• Malaria remains a significant global health concern, with imported cases occurring even in non-endemic regions.
• Pediatric malaria presents unique challenges due to the vulnerability of young patients and potential for severe complications.

Purpose of the Study:

• To investigate the epidemiology and clinical characteristics of pediatric malaria cases in Houston, Texas.
• To identify risk factors and trends in pediatric malaria to inform public health interventions.

Main Methods:

• Retrospective review of medical records for pediatric patients (<18 years) diagnosed with malaria.
• Data collection included patient demographics, travel history, malaria species, clinical presentation, and treatment outcomes.
• Analysis focused on identifying common sources of infection and preventive measure adherence.

Main Results:

• Thirty-four pediatric malaria cases were identified between 1988-1993, predominantly in travelers and recent immigrants.
• West Africa was the most frequent travel destination (68%), often the parents' country of origin.
• Fever (97%) and splenomegaly (68%) were common; Plasmodium falciparum was the most prevalent species (56%).
• Anemia was frequent, with 29% experiencing severe anemia, necessitating transfusions in three cases.
• Inadequate or no malaria chemoprophylaxis was reported in 75% of travel-related cases, with poor compliance noted even when prescribed.

Conclusions:

• Pediatric malaria in Houston is strongly associated with international travel, particularly to West Africa, by immigrant families.
• Preventive strategies and education should be enhanced and targeted towards these high-risk populations.
• Routine well-child care provides an opportunity to integrate malaria prevention education for at-risk families.