Malaria vectors and transmission dynamics in coastal south-western Cameroon
Abstract Background Malaria is a major public health problem in Cameroon. Unlike in the southern forested areas where the epidemiology of malaria has been better studied prior to the implementation of control activities, little is known about the distribution and role of anophelines in malaria trans...
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ftdoajarticles:oai:doaj.org/article:c0af6aff12544d6da628473d48d62a76 2023-05-15T15:11:53+02:00 Malaria vectors and transmission dynamics in coastal south-western Cameroon Titanji Vincent PK Manga Lucien Bigoga Jude D Coetzee Maureen Leke Rose GF 2007-01-01T00:00:00Z https://doi.org/10.1186/1475-2875-6-5 https://doaj.org/article/c0af6aff12544d6da628473d48d62a76 EN eng BMC http://www.malariajournal.com/content/6/1/5 https://doaj.org/toc/1475-2875 doi:10.1186/1475-2875-6-5 1475-2875 https://doaj.org/article/c0af6aff12544d6da628473d48d62a76 Malaria Journal, Vol 6, Iss 1, p 5 (2007) Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 article 2007 ftdoajarticles https://doi.org/10.1186/1475-2875-6-5 2022-12-30T22:18:33Z Abstract Background Malaria is a major public health problem in Cameroon. Unlike in the southern forested areas where the epidemiology of malaria has been better studied prior to the implementation of control activities, little is known about the distribution and role of anophelines in malaria transmission in the coastal areas. Methods A 12-month longitudinal entomological survey was conducted in Tiko, Limbe and Idenau from August 2001 to July 2002. Mosquitoes captured indoors on human volunteers were identified morphologically. Species of the Anopheles gambiae complex were identified using the polymerase chain reaction (PCR). Mosquito infectivity was detected by the enzyme-linked immunosorbent assay and PCR. Malariometric indices (plasmodic index, gametocytic index, parasite species prevalence) were determined in three age groups (<5 yrs, 5–15 yrs, >15 yrs) and followed-up once every three months. Results In all, 2,773 malaria vectors comprising Anopheles gambiae (78.2%), Anopheles funestus (17.4%) and Anopheles nili (7.4%) were captured. Anopheles melas was not anthropophagic. Anopheles gambiae had the highest infection rates. There were 287, 160 and 149 infective bites/person/year in Tiko, Limbe and Idenau, respectively. Anopheles gambiae accounted for 72.7%, An. funestus for 23% and An. nili for 4.3% of the transmission. The prevalence of malaria parasitaemia was 41.5% in children <5 years of age, 31.5% in those 5–15 years and 10.5% in those >15 years, and Plasmodium falciparum was the predominant parasite species. Conclusion Malaria transmission is perennial, rainfall dependent and An. melas does not contribute to transmission. These findings are important in the planning and implementation of malaria control activities in coastal Cameroon and West Africa. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Malaria Journal 6 1 5 |
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Directory of Open Access Journals: DOAJ Articles |
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Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
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Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 Titanji Vincent PK Manga Lucien Bigoga Jude D Coetzee Maureen Leke Rose GF Malaria vectors and transmission dynamics in coastal south-western Cameroon |
topic_facet |
Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
description |
Abstract Background Malaria is a major public health problem in Cameroon. Unlike in the southern forested areas where the epidemiology of malaria has been better studied prior to the implementation of control activities, little is known about the distribution and role of anophelines in malaria transmission in the coastal areas. Methods A 12-month longitudinal entomological survey was conducted in Tiko, Limbe and Idenau from August 2001 to July 2002. Mosquitoes captured indoors on human volunteers were identified morphologically. Species of the Anopheles gambiae complex were identified using the polymerase chain reaction (PCR). Mosquito infectivity was detected by the enzyme-linked immunosorbent assay and PCR. Malariometric indices (plasmodic index, gametocytic index, parasite species prevalence) were determined in three age groups (<5 yrs, 5–15 yrs, >15 yrs) and followed-up once every three months. Results In all, 2,773 malaria vectors comprising Anopheles gambiae (78.2%), Anopheles funestus (17.4%) and Anopheles nili (7.4%) were captured. Anopheles melas was not anthropophagic. Anopheles gambiae had the highest infection rates. There were 287, 160 and 149 infective bites/person/year in Tiko, Limbe and Idenau, respectively. Anopheles gambiae accounted for 72.7%, An. funestus for 23% and An. nili for 4.3% of the transmission. The prevalence of malaria parasitaemia was 41.5% in children <5 years of age, 31.5% in those 5–15 years and 10.5% in those >15 years, and Plasmodium falciparum was the predominant parasite species. Conclusion Malaria transmission is perennial, rainfall dependent and An. melas does not contribute to transmission. These findings are important in the planning and implementation of malaria control activities in coastal Cameroon and West Africa. |
format |
Article in Journal/Newspaper |
author |
Titanji Vincent PK Manga Lucien Bigoga Jude D Coetzee Maureen Leke Rose GF |
author_facet |
Titanji Vincent PK Manga Lucien Bigoga Jude D Coetzee Maureen Leke Rose GF |
author_sort |
Titanji Vincent PK |
title |
Malaria vectors and transmission dynamics in coastal south-western Cameroon |
title_short |
Malaria vectors and transmission dynamics in coastal south-western Cameroon |
title_full |
Malaria vectors and transmission dynamics in coastal south-western Cameroon |
title_fullStr |
Malaria vectors and transmission dynamics in coastal south-western Cameroon |
title_full_unstemmed |
Malaria vectors and transmission dynamics in coastal south-western Cameroon |
title_sort |
malaria vectors and transmission dynamics in coastal south-western cameroon |
publisher |
BMC |
publishDate |
2007 |
url |
https://doi.org/10.1186/1475-2875-6-5 https://doaj.org/article/c0af6aff12544d6da628473d48d62a76 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Malaria Journal, Vol 6, Iss 1, p 5 (2007) |
op_relation |
http://www.malariajournal.com/content/6/1/5 https://doaj.org/toc/1475-2875 doi:10.1186/1475-2875-6-5 1475-2875 https://doaj.org/article/c0af6aff12544d6da628473d48d62a76 |
op_doi |
https://doi.org/10.1186/1475-2875-6-5 |
container_title |
Malaria Journal |
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6 |
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1 |
container_start_page |
5 |
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1766342663612661760 |