Haemoglobin variants and Plasmodium falciparum malaria in children under five years of age living in a high and seasonal malaria transmission area of Burkina Faso.

Malaria Journal
Edith C BougoumaSodiomon B Sirima

Abstract

Genetic factors play a key role in determining resistance/susceptibility to infectious disease. Susceptibility of the human host to malaria infection has been reported to be influenced by genetic factors, which could be confounders if not taken into account in the assessment of the efficacy of interventions against malaria. This study aimed to assess the relationship between haemoglobin genotypes and malaria in children under five years in a site being characterized for future malaria vaccine trials. The study population consisted of 452 children living in four rural villages. Hb genotype was determined at enrolment. Clinical malaria incidence was evaluated over a one-year period using combined active and passive surveillance. Prevalence of infection was evaluated via bi-annual cross-sectional surveys. At each follow-up visit, children received a brief clinical examination and thick and thin blood films were prepared for malaria diagnosis. A clinical malaria was defined as Plasmodium falciparum parasitaemia >2,500 parasites/μl and axillary temperature ≥37.5°C or reported fever over the previous 24 hours. Frequencies of Hb genotypes were 73.2% AA; 15.0% AC; 8.2% AS; 2.2% CC; 1.1% CS and 0.2% SS. Prevalence of infection at enrolm...Continue Reading

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Citations

Aug 23, 2012·British Journal of Haematology·Christine M Cserti-GazdewichWalter H Dzik
Jun 5, 2019·Annals of the New York Academy of Sciences·Ralph D WhiteheadMaria Elena D Jefferds
Oct 11, 2020·Nature Communications·Mame Massar DiengYoussef Idaghdour

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Methods Mentioned

BETA
genotyping

Software Mentioned

SAS
DSS
Epi

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