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Epidemiology of malaria in the Taabo health and demographic surveillance system, south-central Côte d'Ivoire.
Malar J. 2016 Jan 06; 15:9.MJ

Abstract

BACKGROUND

A deep understanding of the local epidemiology of malaria is essential for the design and implementation of setting-specific control and elimination efforts. In Côte d'Ivoire, new initiatives are underway to reduce the burden of malaria, which requires high-quality longitudinal data. The epidemiology of malaria was studied in the Taabo health and demographic surveillance system (HDSS) in south-central Côte d'Ivoire and implications for control are discussed.

METHODS

Two cross-sectional surveys were carried out in the rainy season of June/July in 2010 and 2011. Inhabitants of approximately 7% of randomly selected households in the Taabo HDSS were invited to participate. People were clinically examined, ear temperature was measured and spleen size determined. Finger-prick blood samples were collected and subjected to a rapid diagnostic test (RDT). Additionally, thick and thin blood films were prepared on microscope slides and diagnosed under a microscope for Plasmodium infection and parasitaemia. Haemoglobin (Hb) level was determined using a HemoCue device.

RESULTS

A total of 1187 and 1264 people in 2010 and 2011, respectively, had complete data records. The prevalence of Plasmodium infection was 46.0% in 2010 and 56.6% in 2011, owing to a statistically significant difference (p < 0.05). Males showed a higher Plasmodium infection prevalence than females (49.6 and 62.8% versus 42.6 and 51.2%; respectively, in 2010 and 2011; both p < 0.05). The highest malaria prevalence was observed among infants and young children (aged ≤9 years). The risk of Plasmodium infection was significantly higher in villages compared to small hamlets and urban settings (p < 0.05). Fever, Hb level and splenomegaly were associated with parasitaemia.

CONCLUSION

Malaria is highly endemic in the Taabo HDSS in south-central Côte d'Ivoire with considerable spatial heterogeneity of Plasmodium infection. There is a pressing need to scale-up control interventions against malaria.

Authors+Show Affiliations

Unité de Formation et de Recherche Biosciences, Université Félix Houphouët-Boigny, Abidjan, Côte d'Ivoire. fidelebassa@ymail.com. Centre Suisse de Recherches Scientifiques en Côte d'Ivoire, Abidjan, Côte d'Ivoire. fidelebassa@ymail.com.Unité de Formation et de Recherche Biosciences, Université Félix Houphouët-Boigny, Abidjan, Côte d'Ivoire. mamadou_ouatt@yahoo.fr.Unité de Formation et de Recherche Biosciences, Université Félix Houphouët-Boigny, Abidjan, Côte d'Ivoire. kigbafori.silue@gmail.com. Centre Suisse de Recherches Scientifiques en Côte d'Ivoire, Abidjan, Côte d'Ivoire. kigbafori.silue@gmail.com.Hôpital Général de Taabo, Taabo-Cité, Côte d'Ivoire. adiossanlukas@yahoo.fr.Centre Suisse de Recherches Scientifiques en Côte d'Ivoire, Abidjan, Côte d'Ivoire. awa_bai@yahoo.fr.Centre Suisse de Recherches Scientifiques en Côte d'Ivoire, Abidjan, Côte d'Ivoire. kone_siaka0@yahoo.fr.Centre de Recherche et de Lutte contre le Paludisme, Institut National de la Santé Publique, Abidjan, Côte d'Ivoire. moussanncho@yahoo.fr.Centre Suisse de Recherches Scientifiques en Côte d'Ivoire, Abidjan, Côte d'Ivoire. mahamadou.traoreom@yahoo.fr.Centre Suisse de Recherches Scientifiques en Côte d'Ivoire, Abidjan, Côte d'Ivoire. bassirou.bonfoh@csrs.ci.Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Basel, Switzerland. juerg.utzinger@unibas.ch. University of Basel, Basel, Switzerland. juerg.utzinger@unibas.ch.Unité de Formation et de Recherche Biosciences, Université Félix Houphouët-Boigny, Abidjan, Côte d'Ivoire. eliezerngoran@yahoo.fr. Centre Suisse de Recherches Scientifiques en Côte d'Ivoire, Abidjan, Côte d'Ivoire. eliezerngoran@yahoo.fr.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26739224

Citation

Bassa, Fidèle K., et al. "Epidemiology of Malaria in the Taabo Health and Demographic Surveillance System, South-central Côte D'Ivoire." Malaria Journal, vol. 15, 2016, p. 9.
Bassa FK, Ouattara M, Silué KD, et al. Epidemiology of malaria in the Taabo health and demographic surveillance system, south-central Côte d'Ivoire. Malar J. 2016;15:9.
Bassa, F. K., Ouattara, M., Silué, K. D., Adiossan, L. G., Baikoro, N., Koné, S., N'Cho, M., Traoré, M., Bonfoh, B., Utzinger, J., & N'Goran, E. K. (2016). Epidemiology of malaria in the Taabo health and demographic surveillance system, south-central Côte d'Ivoire. Malaria Journal, 15, 9. https://doi.org/10.1186/s12936-015-1076-6
Bassa FK, et al. Epidemiology of Malaria in the Taabo Health and Demographic Surveillance System, South-central Côte D'Ivoire. Malar J. 2016 Jan 6;15:9. PubMed PMID: 26739224.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Epidemiology of malaria in the Taabo health and demographic surveillance system, south-central Côte d'Ivoire. AU - Bassa,Fidèle K, AU - Ouattara,Mamadou, AU - Silué,Kigbafori D, AU - Adiossan,Lukas G, AU - Baikoro,Nahoua, AU - Koné,Siaka, AU - N'Cho,Moussan, AU - Traoré,Mahamadou, AU - Bonfoh,Bassirou, AU - Utzinger,Jürg, AU - N'Goran,Eliézer K, Y1 - 2016/01/06/ PY - 2015/04/30/received PY - 2015/12/23/accepted PY - 2016/1/8/entrez PY - 2016/1/8/pubmed PY - 2016/10/1/medline SP - 9 EP - 9 JF - Malaria journal JO - Malar J VL - 15 N2 - BACKGROUND: A deep understanding of the local epidemiology of malaria is essential for the design and implementation of setting-specific control and elimination efforts. In Côte d'Ivoire, new initiatives are underway to reduce the burden of malaria, which requires high-quality longitudinal data. The epidemiology of malaria was studied in the Taabo health and demographic surveillance system (HDSS) in south-central Côte d'Ivoire and implications for control are discussed. METHODS: Two cross-sectional surveys were carried out in the rainy season of June/July in 2010 and 2011. Inhabitants of approximately 7% of randomly selected households in the Taabo HDSS were invited to participate. People were clinically examined, ear temperature was measured and spleen size determined. Finger-prick blood samples were collected and subjected to a rapid diagnostic test (RDT). Additionally, thick and thin blood films were prepared on microscope slides and diagnosed under a microscope for Plasmodium infection and parasitaemia. Haemoglobin (Hb) level was determined using a HemoCue device. RESULTS: A total of 1187 and 1264 people in 2010 and 2011, respectively, had complete data records. The prevalence of Plasmodium infection was 46.0% in 2010 and 56.6% in 2011, owing to a statistically significant difference (p < 0.05). Males showed a higher Plasmodium infection prevalence than females (49.6 and 62.8% versus 42.6 and 51.2%; respectively, in 2010 and 2011; both p < 0.05). The highest malaria prevalence was observed among infants and young children (aged ≤9 years). The risk of Plasmodium infection was significantly higher in villages compared to small hamlets and urban settings (p < 0.05). Fever, Hb level and splenomegaly were associated with parasitaemia. CONCLUSION: Malaria is highly endemic in the Taabo HDSS in south-central Côte d'Ivoire with considerable spatial heterogeneity of Plasmodium infection. There is a pressing need to scale-up control interventions against malaria. SN - 1475-2875 UR - https://www.unboundmedicine.com/medline/citation/26739224/Epidemiology_of_malaria_in_the_Taabo_health_and_demographic_surveillance_system_south_central_C��te_d'Ivoire_ L2 - https://malariajournal.biomedcentral.com/articles/10.1186/s12936-015-1076-6 DB - PRIME DP - Unbound Medicine ER -