Malaria prevalence in north-eastern Nigeria: a cross-sectional study

Area of Science:

• Tropical medicine
• Infectious disease epidemiology

Background:

• Malaria remains a significant public health concern in many parts of sub-Saharan Africa.
• Accurate assessment of malaria parasite rates is crucial for effective control strategies.

Purpose of the Study:

• To determine the prevalence of malaria parasitemia in a specific region of north-east Nigeria.
• To evaluate the effectiveness of current malaria prevention measures in the study area.

Main Methods:

• A cross-sectional study was conducted in a village in north-east Nigeria during the rainy season (October 2011).
• 550 inhabitants were recruited, with 497 (90%) participating in structured interviews and blood film testing for malaria parasites.
• Individuals testing positive for Plasmodium falciparum received artemisinin-based combination therapy (ACT).

Main Results:

• The overall Plasmodium falciparum parasite rate (PfPR) was 24.5% among the 497 participants.
• In children aged 2 to <10 years, the PfPR (PfPR2-10) was higher at 38.4% (53/138).
• Malaria control measures were utilized by only 31.6% (157/497) of the population, with 17.8% (28/157) still testing positive despite these interventions.

Conclusions:

• The study suggests that the malaria burden in this region of north-east Nigeria may be overestimated, indicating an intermediate endemicity pattern.
• Malaria control efforts, particularly the 30% bed net coverage, fall short of the World Health Organization (WHO) recommendations for 2011.
• Enhanced and widespread implementation of malaria prevention strategies is necessary to reduce transmission.