Frequency of Multiple Blood Meals Taken in a Single Gonotrophic Cycle by Anopheles arabiensis Mosquitoes in Macha, Zambia
Anopheles arabiensis is a major vector of Plasmodium falciparum in southern Zambia. This study aimed to determine the rate of multiple human blood meals taken by An. arabiensis to more accurately estimate entomologic inoculation rates (EIRs). Mosquitoes were collected in four village areas over two...
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| Veröffentlicht in: | The American journal of tropical medicine and hygiene 2010-07, Vol.83 (1), p.33-37 |
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| creator | NORRIS, Laura C FORNADEL, Christen M HUNG, Wei-Chien PINEDA, Fernando J NORRIS, Douglas E |
| description | Anopheles arabiensis is a major vector of Plasmodium falciparum in southern Zambia. This study aimed to determine the rate of multiple human blood meals taken by An. arabiensis to more accurately estimate entomologic inoculation rates (EIRs). Mosquitoes were collected in four village areas over two seasons. DNA from human blood meals was extracted and amplified at four microsatellite loci. Using the three-allele method, which counts > or = 3 alleles at any microsatellite locus as a multiple blood meal, we determined that the overall frequency of multiple blood meals was 18.9%, which was higher than rates reported for An. gambiae in Kenya and An. funestus in Tanzania. Computer simulations showed that the three-allele method underestimates the true multiple blood meal proportion by 3-5%. Although P. falciparum infection status was not shown to influence the frequency of multiple blood feeding, the high multiple feeding rate found in this study increased predicted malaria risk by increasing EIR. |
| doi_str_mv | 10.4269/ajtmh.2010.09-0296 |
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This study aimed to determine the rate of multiple human blood meals taken by An. arabiensis to more accurately estimate entomologic inoculation rates (EIRs). Mosquitoes were collected in four village areas over two seasons. DNA from human blood meals was extracted and amplified at four microsatellite loci. Using the three-allele method, which counts > or = 3 alleles at any microsatellite locus as a multiple blood meal, we determined that the overall frequency of multiple blood meals was 18.9%, which was higher than rates reported for An. gambiae in Kenya and An. funestus in Tanzania. Computer simulations showed that the three-allele method underestimates the true multiple blood meal proportion by 3-5%. 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This study aimed to determine the rate of multiple human blood meals taken by An. arabiensis to more accurately estimate entomologic inoculation rates (EIRs). Mosquitoes were collected in four village areas over two seasons. DNA from human blood meals was extracted and amplified at four microsatellite loci. Using the three-allele method, which counts > or = 3 alleles at any microsatellite locus as a multiple blood meal, we determined that the overall frequency of multiple blood meals was 18.9%, which was higher than rates reported for An. gambiae in Kenya and An. funestus in Tanzania. Computer simulations showed that the three-allele method underestimates the true multiple blood meal proportion by 3-5%. Although P. falciparum infection status was not shown to influence the frequency of multiple blood feeding, the high multiple feeding rate found in this study increased predicted malaria risk by increasing EIR.</description><subject>Animals</subject><subject>Anopheles - physiology</subject><subject>Biological and medical sciences</subject><subject>Climate</subject><subject>Culicidae - parasitology</subject><subject>Feeding Behavior - physiology</subject><subject>Humans</subject><subject>Infectious diseases</subject><subject>Insect Bites and Stings - physiopathology</subject><subject>Insect Vectors - physiology</subject><subject>Kenya - epidemiology</subject><subject>Malaria - parasitology</subject><subject>Malaria - transmission</subject><subject>Malaria, Falciparum - epidemiology</subject><subject>Malaria, Falciparum - parasitology</subject><subject>Medical sciences</subject><subject>Plasmodium falciparum - physiology</subject><subject>Population Density</subject><subject>Seasons</subject><subject>Tanzania - epidemiology</subject><subject>Zambia - epidemiology</subject><issn>0002-9637</issn><issn>1476-1645</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpVkUFPGzEQha2qqATaP9BD5Utv3WB7be_6UgkiCEhEHAoXLtas10tMN3awN5X23-MQGuA0mjfvfZb8EPpOyZQzqU7gcVgtp4zknaiCMCU_oQnllSyo5OIzmhBCWKFkWR2io5QeCaE1o_QLOmREKMErPkHjRbRPG-vNiEOHF5t-cOve4rM-hBYvLPQJ38Jf67HzGPAf5x_ydR58GGJYL53Bs9FkpRnxqc-C7W3CEKFx1ieX8CKkp40bQlYzYAFmCb_wPawaB1_RQZfx9tvrPEZ3F-e3s8vi-mZ-NTu9Lgwv6VBI0om2BEJLwy2nXIICJqlVNZdlzS0IyIowAJKXTUcJqIa3oqlr2RoBtDxGv3fc9aZZ2dZYP0To9Tq6FcRRB3D648W7pX4I_zRTlImKZQDbAUwMKUXb7bOU6G0R-qUIvS1CE6W3ReTQj_ev7iP_fz4bfr4aIBnouwjeuPTmY6oSglTlMwyRlMY</recordid><startdate>20100701</startdate><enddate>20100701</enddate><creator>NORRIS, Laura C</creator><creator>FORNADEL, Christen M</creator><creator>HUNG, Wei-Chien</creator><creator>PINEDA, Fernando J</creator><creator>NORRIS, Douglas E</creator><general>American Society of Tropical Medecine and Hygiene</general><general>The American Society of Tropical Medicine and Hygiene</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>5PM</scope></search><sort><creationdate>20100701</creationdate><title>Frequency of Multiple Blood Meals Taken in a Single Gonotrophic Cycle by Anopheles arabiensis Mosquitoes in Macha, Zambia</title><author>NORRIS, Laura C ; FORNADEL, Christen M ; HUNG, Wei-Chien ; PINEDA, Fernando J ; NORRIS, Douglas E</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c431t-60f5d3a013c4e4146a9a261e9846384ea5aa9a5caa643bf10a9b4d5b886dc5a13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Animals</topic><topic>Anopheles - physiology</topic><topic>Biological and medical sciences</topic><topic>Climate</topic><topic>Culicidae - parasitology</topic><topic>Feeding Behavior - physiology</topic><topic>Humans</topic><topic>Infectious diseases</topic><topic>Insect Bites and Stings - physiopathology</topic><topic>Insect Vectors - physiology</topic><topic>Kenya - epidemiology</topic><topic>Malaria - parasitology</topic><topic>Malaria - transmission</topic><topic>Malaria, Falciparum - epidemiology</topic><topic>Malaria, Falciparum - parasitology</topic><topic>Medical sciences</topic><topic>Plasmodium falciparum - physiology</topic><topic>Population Density</topic><topic>Seasons</topic><topic>Tanzania - epidemiology</topic><topic>Zambia - epidemiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>NORRIS, Laura C</creatorcontrib><creatorcontrib>FORNADEL, Christen M</creatorcontrib><creatorcontrib>HUNG, Wei-Chien</creatorcontrib><creatorcontrib>PINEDA, Fernando J</creatorcontrib><creatorcontrib>NORRIS, Douglas E</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>The American journal of tropical medicine and hygiene</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>NORRIS, Laura C</au><au>FORNADEL, Christen M</au><au>HUNG, Wei-Chien</au><au>PINEDA, Fernando J</au><au>NORRIS, Douglas E</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Frequency of Multiple Blood Meals Taken in a Single Gonotrophic Cycle by Anopheles arabiensis Mosquitoes in Macha, Zambia</atitle><jtitle>The American journal of tropical medicine and hygiene</jtitle><addtitle>Am J Trop Med Hyg</addtitle><date>2010-07-01</date><risdate>2010</risdate><volume>83</volume><issue>1</issue><spage>33</spage><epage>37</epage><pages>33-37</pages><issn>0002-9637</issn><eissn>1476-1645</eissn><coden>AJTHAB</coden><abstract>Anopheles arabiensis is a major vector of Plasmodium falciparum in southern Zambia. This study aimed to determine the rate of multiple human blood meals taken by An. arabiensis to more accurately estimate entomologic inoculation rates (EIRs). Mosquitoes were collected in four village areas over two seasons. DNA from human blood meals was extracted and amplified at four microsatellite loci. Using the three-allele method, which counts > or = 3 alleles at any microsatellite locus as a multiple blood meal, we determined that the overall frequency of multiple blood meals was 18.9%, which was higher than rates reported for An. gambiae in Kenya and An. funestus in Tanzania. Computer simulations showed that the three-allele method underestimates the true multiple blood meal proportion by 3-5%. Although P. falciparum infection status was not shown to influence the frequency of multiple blood feeding, the high multiple feeding rate found in this study increased predicted malaria risk by increasing EIR.</abstract><cop>Deerfield, IL</cop><pub>American Society of Tropical Medecine and Hygiene</pub><pmid>20595474</pmid><doi>10.4269/ajtmh.2010.09-0296</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Animals Anopheles - physiology Biological and medical sciences Climate Culicidae - parasitology Feeding Behavior - physiology Humans Infectious diseases Insect Bites and Stings - physiopathology Insect Vectors - physiology Kenya - epidemiology Malaria - parasitology Malaria - transmission Malaria, Falciparum - epidemiology Malaria, Falciparum - parasitology Medical sciences Plasmodium falciparum - physiology Population Density Seasons Tanzania - epidemiology Zambia - epidemiology |
| title | Frequency of Multiple Blood Meals Taken in a Single Gonotrophic Cycle by Anopheles arabiensis Mosquitoes in Macha, Zambia |
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