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Non-falciparum malaria infections in pregnant women in West Africa

Williams, John, Njie, Fanta, Cairns, Matthew, Bojang, Kalifa, Coulibaly, Sheick Oumar, Kayentao, Kassoum, Abubakar, Ismaela, Akor, Francis, Mohammed, Khalifa, Bationo, Richard, Dabira, Edgar, Soulama, Alamissa, Djimdé, Moussa, Guirou, Etienne, Awine, Timothy, Quaye, Stephen L, Ordi, Jaume, Doumbo, Ogobara, Hodgson, Abraham, Oduro, Abraham, Magnussen, Pascal, terKuile, Feiko ORCID: https://orcid.org/0000-0003-3663-5617, Woukeu, Arouna, Milligan, Paul, Tagbor, Harry, Greenwood, Brian and Chandramohan, Daniel (2016) 'Non-falciparum malaria infections in pregnant women in West Africa'. Malaria Journal, Vol 15, e53.

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Abstract

Background
Non-Plasmodium falciparum malaria infections are found in many parts of sub-Saharan Africa but little is known about their importance in pregnancy.

Methods
Blood samples were collected at first antenatal clinic attendance from 2526 women enrolled in a trial of intermittent screening and treatment of malaria in pregnancy (ISTp) versus intermittent preventive treatment (IPTp) conducted in Burkina Faso, The Gambia, Ghana and Mali. DNA was extracted from blood spots and tested for P. falciparum, Plasmodium vivax, Plasmodium malariae and Plasmodium ovale using a nested PCR test. Risk factors for a non-falciparum malaria infection were investigated and the influence of these infections on the outcome of pregnancy was determined.

Results
P. falciparum infection was detected frequently (overall prevalence by PCR: 38.8 %, [95 % CI 37.0, 40.8]), with a prevalence ranging from 10.8 % in The Gambia to 56.1 % in Ghana. Non-falciparum malaria infections were found only rarely (overall prevalence 1.39 % [95 % CI 1.00, 1.92]), ranging from 0.17 % in the Gambia to 3.81 % in Mali. Ten non-falciparum mono-infections and 25 mixed falciparum and non-falciparum infections were found. P. malariae was the most frequent non-falciparum infection identified; P. vivax was detected only in Mali. Only four of the non-falciparum mono-infections were detected by microscopy or rapid diagnostic test. Recruitment during the late rainy season and low socio-economic status were associated with an increased risk of non-falciparum malaria as well as falciparum malaria. The outcome of pregnancy did not differ between women with a non-falciparum malaria infection and those who were not infected with malaria at first ANC attendance.

Conclusions
Non-falciparum infections were infrequent in the populations studied, rarely detected when present as a mono-infection and unlikely to have had an important impact on the outcome of pregnancy in the communities studied due to the small number of women infected with non-falciparum parasites.

Item Type: Article
Additional Information: Access: SM This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://​creativecommons.​org/​licenses/​by/​4.​0/​), Subjects: SM
Subjects: QV Pharmacology > Anti-Inflammatory Agents. Anti-Infective Agents. Antineoplastic Agents > QV 256 Antimalarials
WA Public Health > WA 100 General works
WA Public Health > Health Problems of Special Population Groups > WA 310 Maternal welfare
WA Public Health > Health Problems of Special Population Groups > WA 395 Health in developing countries
WC Communicable Diseases > Tropical and Parasitic Diseases > WC 750 Malaria
Faculty: Department: Clinical Sciences & International Health > Clinical Sciences Department
Digital Object Identifer (DOI): https://doi.org/10.1186/s12936-016-1092-1
Depositing User: Stacy Murtagh
Date Deposited: 01 Mar 2016 13:29
Last Modified: 06 Feb 2018 13:12
URI: https://archive.lstmed.ac.uk/id/eprint/5713

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