The resting sites and blood-meal sources of Anopheles minimus in Taiwan
Abstract Background The WHO declared Taiwan free from malaria in 1965, but in 2003 the reporting of two introduced cases in a rural area suggested a possible local transmission of this disease. Therefore, understanding the resting sites and the blood sources of Anopheles minimus is crucial in order...
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ftdoajarticles:oai:doaj.org/article:086950563219426ab315946aa756e0d7 2023-05-15T15:17:57+02:00 The resting sites and blood-meal sources of Anopheles minimus in Taiwan Chen Yung-Chen Chen Chen-Fu Teng Hwa-Jen Chang Mei-Chun Jeng Chian-Ren 2008-06-01T00:00:00Z https://doi.org/10.1186/1475-2875-7-105 https://doaj.org/article/086950563219426ab315946aa756e0d7 EN eng BMC http://www.malariajournal.com/content/7/1/105 https://doaj.org/toc/1475-2875 doi:10.1186/1475-2875-7-105 1475-2875 https://doaj.org/article/086950563219426ab315946aa756e0d7 Malaria Journal, Vol 7, Iss 1, p 105 (2008) Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 article 2008 ftdoajarticles https://doi.org/10.1186/1475-2875-7-105 2022-12-31T00:04:13Z Abstract Background The WHO declared Taiwan free from malaria in 1965, but in 2003 the reporting of two introduced cases in a rural area suggested a possible local transmission of this disease. Therefore, understanding the resting sites and the blood sources of Anopheles minimus is crucial in order to provide information for implementing vector control strategies. Methods During a two-year survey, mosquitoes were collected in houses and their surrounding areas and at the bank of larval habitats by backpack aspirators in 17 villages in rural areas of southern and eastern Taiwan for 1 hr. On the same day, blacklight traps were hung downward overnight. Blood-fed mosquito samples were analysed by PCR. Results Of the 195 total households surveyed by backpack aspirators, no Anopheles adults were collected inside the houses, while a single Anopheles minimus and a single Anopheles maculatus were collected outside of the houses. On the same day, 23 An. minimus , two An. maculatus , two Anopheles ludlowae , two Anopheles sinensis , and one Anopheles tessellatus were collected along the bank of larval habitats. In blacklight traps hung outside of the houses in the villages, 69 An. minimus , 62 An. ludlowae , 31 An. sinensis , and 19 An. maculatus were collected. In larval habitats, 98 An. ludlowae , 64 An. minimus , 49 An. sinensis , and 14 An. maculatus were collected. Of a total of 10 blood-fed samples, An. minimus fed on four animals including bovine (60%), dogs (20%), pig (10%), and non-chicken avian (10%). Conclusion Anopheles minimus , an opportunist feeder in Taiwan, was not collected inside the houses, but was found outside of the houses in villages and surrounding larval habitats. Therefore, an outdoor transmission of malaria is likely to occur and, thus, the bed nets, which are favoured for controlling the late biting of An. minimus , should be a very efficient and effective method for those local residents who sleep outdoors. Additionally, space spray of insecticides for Anopheles at night, as well as residual ... Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Malaria Journal 7 1 105 |
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Directory of Open Access Journals: DOAJ Articles |
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topic |
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 Chen Yung-Chen Chen Chen-Fu Teng Hwa-Jen Chang Mei-Chun Jeng Chian-Ren The resting sites and blood-meal sources of Anopheles minimus in Taiwan |
topic_facet |
Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
description |
Abstract Background The WHO declared Taiwan free from malaria in 1965, but in 2003 the reporting of two introduced cases in a rural area suggested a possible local transmission of this disease. Therefore, understanding the resting sites and the blood sources of Anopheles minimus is crucial in order to provide information for implementing vector control strategies. Methods During a two-year survey, mosquitoes were collected in houses and their surrounding areas and at the bank of larval habitats by backpack aspirators in 17 villages in rural areas of southern and eastern Taiwan for 1 hr. On the same day, blacklight traps were hung downward overnight. Blood-fed mosquito samples were analysed by PCR. Results Of the 195 total households surveyed by backpack aspirators, no Anopheles adults were collected inside the houses, while a single Anopheles minimus and a single Anopheles maculatus were collected outside of the houses. On the same day, 23 An. minimus , two An. maculatus , two Anopheles ludlowae , two Anopheles sinensis , and one Anopheles tessellatus were collected along the bank of larval habitats. In blacklight traps hung outside of the houses in the villages, 69 An. minimus , 62 An. ludlowae , 31 An. sinensis , and 19 An. maculatus were collected. In larval habitats, 98 An. ludlowae , 64 An. minimus , 49 An. sinensis , and 14 An. maculatus were collected. Of a total of 10 blood-fed samples, An. minimus fed on four animals including bovine (60%), dogs (20%), pig (10%), and non-chicken avian (10%). Conclusion Anopheles minimus , an opportunist feeder in Taiwan, was not collected inside the houses, but was found outside of the houses in villages and surrounding larval habitats. Therefore, an outdoor transmission of malaria is likely to occur and, thus, the bed nets, which are favoured for controlling the late biting of An. minimus , should be a very efficient and effective method for those local residents who sleep outdoors. Additionally, space spray of insecticides for Anopheles at night, as well as residual ... |
format |
Article in Journal/Newspaper |
author |
Chen Yung-Chen Chen Chen-Fu Teng Hwa-Jen Chang Mei-Chun Jeng Chian-Ren |
author_facet |
Chen Yung-Chen Chen Chen-Fu Teng Hwa-Jen Chang Mei-Chun Jeng Chian-Ren |
author_sort |
Chen Yung-Chen |
title |
The resting sites and blood-meal sources of Anopheles minimus in Taiwan |
title_short |
The resting sites and blood-meal sources of Anopheles minimus in Taiwan |
title_full |
The resting sites and blood-meal sources of Anopheles minimus in Taiwan |
title_fullStr |
The resting sites and blood-meal sources of Anopheles minimus in Taiwan |
title_full_unstemmed |
The resting sites and blood-meal sources of Anopheles minimus in Taiwan |
title_sort |
resting sites and blood-meal sources of anopheles minimus in taiwan |
publisher |
BMC |
publishDate |
2008 |
url |
https://doi.org/10.1186/1475-2875-7-105 https://doaj.org/article/086950563219426ab315946aa756e0d7 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Malaria Journal, Vol 7, Iss 1, p 105 (2008) |
op_relation |
http://www.malariajournal.com/content/7/1/105 https://doaj.org/toc/1475-2875 doi:10.1186/1475-2875-7-105 1475-2875 https://doaj.org/article/086950563219426ab315946aa756e0d7 |
op_doi |
https://doi.org/10.1186/1475-2875-7-105 |
container_title |
Malaria Journal |
container_volume |
7 |
container_issue |
1 |
container_start_page |
105 |
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1766348198964625408 |