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Congenital malaria in a hyperendemic area
1Department of Emergency Medicine, William Beaumont Hospital, Royal Oak, Michigan.
The American Journal of Tropical Medicine and Hygiene
|November 1, 1991
Summary
Congenital malaria affects nearly 30% of newborns in Zambia, with infected infants showing lower birthweights. Maternal chloroquine prophylaxis was ineffective, suggesting emerging drug resistance.
Area of Science:
- Medical Research
- Infectious Diseases
- Global Health
Background:
- Malaria in pregnancy poses significant risks to both mother and child.
- Plasmodium falciparum is a major cause of malaria in endemic regions.
- Congenital malaria, transmitted from mother to neonate, requires further investigation.
Purpose of the Study:
- To evaluate the prevalence of Plasmodium falciparum malaria in pregnant women and their newborns in Zambia.
- To assess the impact of congenital malaria on neonatal outcomes.
- To investigate the effectiveness of maternal chloroquine prophylaxis.
Main Methods:
- Cross-sectional study conducted at Macha Hospital, Zambia.
- Inclusion of near-term pregnant women and their newborns during the peak malaria season.
- Microscopic examination for peripheral parasitemia in mothers and neonates.
Main Results:
- Prevalence of malaria was 63% in mothers and 29% in newborns.
- Infected neonates had significantly lower average birthweights (469g less).
- Maternal chloroquine prophylaxis showed limited effectiveness in preventing fetal or maternal infection.
Conclusions:
- Congenital malaria is highly prevalent in this Zambian population.
- Lower birthweight is associated with neonatal malaria, but prematurity and Apgar scores are unaffected.
- Emerging chloroquine resistance may contribute to the high prevalence of congenital malaria.