Relative Susceptibilties of South Texas Mosquitoes to Infection with West Nile Virus
Three species of mosquitoes (Culex pipiens quinquefasciatus, Aedes aegypti, and Ae. albopictus) collected in Texas were compared with respect to their relative susceptibility to infection with West Nile virus (WNV) strain 114. Oral infection and dissemination rates were 73% infected with 86% dissemi...
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| Veröffentlicht in: | The American journal of tropical medicine and hygiene 2007-11, Vol.77 (5), p.925-928 |
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| container_title | The American journal of tropical medicine and hygiene |
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| creator | Vanlandingham, Dana L McGee, Charles E Klinger, Kimberly A Vessey, Nathan Fredregillo, Chris Higgs, Stephen |
| description | Three species of mosquitoes (Culex pipiens quinquefasciatus, Aedes aegypti, and Ae. albopictus) collected in Texas were compared with respect to their relative susceptibility to infection with West Nile virus (WNV) strain 114. Oral infection and dissemination rates were 73% infected with 86% dissemination for Ae. aegypti, 13% infected with 100% dissemination for Ae. albopictus, and 100% infected and disseminated for Cx. p. quinquefasciatus. The oral infectious dose required to establish a 50% infection rate was also determined. All feral mosquito species were found to be susceptible to oral infection with WNV (114) in a similar range: Ae. aegypti (6.37 log(10) 50% tissue culture infectious doses [TCID(50)]/5 microL), Ae. albopictus (6.17 log(10) TCID(50)/5 microL), and Cx. p. quinquefasciatus (5.33 log(10) TCID(50)/5 microL). These data demonstrate that both Ae. aegypti and Ae. albopictus from Texas are susceptible to infection with WNV at a similar range to Cx. p. quinquefasciatus and may represent a threat of WNV transmission to humans because of host preferences. |
| doi_str_mv | 10.4269/ajtmh.2007.77.925 |
| format | Article |
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Oral infection and dissemination rates were 73% infected with 86% dissemination for Ae. aegypti, 13% infected with 100% dissemination for Ae. albopictus, and 100% infected and disseminated for Cx. p. quinquefasciatus. The oral infectious dose required to establish a 50% infection rate was also determined. All feral mosquito species were found to be susceptible to oral infection with WNV (114) in a similar range: Ae. aegypti (6.37 log(10) 50% tissue culture infectious doses [TCID(50)]/5 microL), Ae. albopictus (6.17 log(10) TCID(50)/5 microL), and Cx. p. quinquefasciatus (5.33 log(10) TCID(50)/5 microL). 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Oral infection and dissemination rates were 73% infected with 86% dissemination for Ae. aegypti, 13% infected with 100% dissemination for Ae. albopictus, and 100% infected and disseminated for Cx. p. quinquefasciatus. The oral infectious dose required to establish a 50% infection rate was also determined. All feral mosquito species were found to be susceptible to oral infection with WNV (114) in a similar range: Ae. aegypti (6.37 log(10) 50% tissue culture infectious doses [TCID(50)]/5 microL), Ae. albopictus (6.17 log(10) TCID(50)/5 microL), and Cx. p. quinquefasciatus (5.33 log(10) TCID(50)/5 microL). These data demonstrate that both Ae. aegypti and Ae. albopictus from Texas are susceptible to infection with WNV at a similar range to Cx. p. quinquefasciatus and may represent a threat of WNV transmission to humans because of host preferences.</description><subject>Aedes - virology</subject><subject>Aedes aegypti</subject><subject>Animals</subject><subject>Culex - virology</subject><subject>Culex pipiens quinquefasciatus</subject><subject>Host-Pathogen Interactions</subject><subject>Insect Vectors</subject><subject>Texas</subject><subject>West Nile Fever - epidemiology</subject><subject>West Nile Fever - transmission</subject><subject>West Nile Fever - virology</subject><subject>West Nile virus</subject><subject>West Nile virus - physiology</subject><issn>0002-9637</issn><issn>1476-1645</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkM1OGzEURq0KVFLaB-gGeUN3E3w9_l1WiAISBYmk7dIyHg8xmonD2MPA29chkbqsdCUv7vk-2wehr0DmjAp9Zp9yv5pTQuRcyrmm_AOaAZOiAsH4AZoRQmilRS2P0KeUnggBRQE-oiOQWrGa8xla3vvO5vDi8WJMzm9yeAhdDj7h2OJFHPMKL_2rTfhnTM9jyLFscsTX69a7HOIaT6Egf3zK-DZ0Hv8Ow5g-o8PWdsl_2Z_H6NePi-X5VXVzd3l9_v2mcpQpXqmaKsFsy51mtfKNs8wRAE0ZcKGlbkAK2YDTikshtKtbyUBDwyW3Vuq2Pkbfdr2bIT6P5Q2mD-UTXWfXPo7JCMVkXZf5H0hJuUkLVUDYgW6IKQ2-NZsh9HZ4M0DM1rl5d262zo2UpjgvmZN9-fjQ--ZfYi-5AKc7YBUeV1MYvEm97bqCg5mmqdTw96K_DDmKOQ</recordid><startdate>20071101</startdate><enddate>20071101</enddate><creator>Vanlandingham, Dana L</creator><creator>McGee, Charles E</creator><creator>Klinger, Kimberly A</creator><creator>Vessey, Nathan</creator><creator>Fredregillo, Chris</creator><creator>Higgs, Stephen</creator><general>ASTMH</general><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>7SS</scope><scope>7U9</scope><scope>C1K</scope><scope>F1W</scope><scope>H94</scope><scope>H95</scope><scope>H97</scope><scope>L.G</scope><scope>7X8</scope></search><sort><creationdate>20071101</creationdate><title>Relative Susceptibilties of South Texas Mosquitoes to Infection with West Nile Virus</title><author>Vanlandingham, Dana L ; 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Oral infection and dissemination rates were 73% infected with 86% dissemination for Ae. aegypti, 13% infected with 100% dissemination for Ae. albopictus, and 100% infected and disseminated for Cx. p. quinquefasciatus. The oral infectious dose required to establish a 50% infection rate was also determined. All feral mosquito species were found to be susceptible to oral infection with WNV (114) in a similar range: Ae. aegypti (6.37 log(10) 50% tissue culture infectious doses [TCID(50)]/5 microL), Ae. albopictus (6.17 log(10) TCID(50)/5 microL), and Cx. p. quinquefasciatus (5.33 log(10) TCID(50)/5 microL). 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| subjects | Aedes - virology Aedes aegypti Animals Culex - virology Culex pipiens quinquefasciatus Host-Pathogen Interactions Insect Vectors Texas West Nile Fever - epidemiology West Nile Fever - transmission West Nile Fever - virology West Nile virus West Nile virus - physiology |
| title | Relative Susceptibilties of South Texas Mosquitoes to Infection with West Nile Virus |
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