Role of Nestling Mourning Doves and House Finches as Amplifying Hosts of St. Louis Encephalitis Virus
Nestling mourning doves and house finches produced elevated viremias after inoculation with 2–3 log10 plaque-forming units (PFU) of St Louis encephalitis (SLE) virus and infected 67 and 70% of Culex tarsalis Coquillett that engorged upon them, respectively. Mosquito infection rates as well as the qu...
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| Veröffentlicht in: | Journal of medical entomology 2004-09, Vol.41 (5), p.965-972 |
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| creator | Mahmood, Farida Chiles, Robert E. Fang, Ying Barker, Christopher M. Reisen, William K. |
| description | Nestling mourning doves and house finches produced elevated viremias after inoculation with 2–3 log10 plaque-forming units (PFU) of St Louis encephalitis (SLE) virus and infected 67 and 70% of Culex tarsalis Coquillett that engorged upon them, respectively. Mosquito infection rates as well as the quantity of virus produced after extrinsic incubation increased as a function of the quantity of virus ingested and peaked during days 3–5 postinoculation in mourning doves and days 2–4 in house finches. Only female Cx. tarsalis with body titers ≥4.6 log10 PFU were capable of transmitting virus. Overall, 38% of females infected by feeding on mourning doves and 22% feeding on house finches were capable of transmission. The quantity of virus expectorated was variable, ranging from 0.8 to 3.4 log10 PFU and was greatest during periods when avian viremias were elevated. Our data indicated that nestling mourning doves and house finches were competent hosts for SLE virus and that the quantity of virus ingested from a viremic avian host varies during the course of the infection and determines transmission rates by the mosquito vector. |
| doi_str_mv | 10.1603/0022-2585-41.5.965 |
| format | Article |
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Mosquito infection rates as well as the quantity of virus produced after extrinsic incubation increased as a function of the quantity of virus ingested and peaked during days 3–5 postinoculation in mourning doves and days 2–4 in house finches. Only female Cx. tarsalis with body titers ≥4.6 log10 PFU were capable of transmitting virus. Overall, 38% of females infected by feeding on mourning doves and 22% feeding on house finches were capable of transmission. The quantity of virus expectorated was variable, ranging from 0.8 to 3.4 log10 PFU and was greatest during periods when avian viremias were elevated. Our data indicated that nestling mourning doves and house finches were competent hosts for SLE virus and that the quantity of virus ingested from a viremic avian host varies during the course of the infection and determines transmission rates by the mosquito vector.</description><identifier>ISSN: 0022-2585</identifier><identifier>EISSN: 1938-2928</identifier><identifier>DOI: 10.1603/0022-2585-41.5.965</identifier><identifier>PMID: 15535629</identifier><identifier>CODEN: JMENA6</identifier><language>eng</language><publisher>Lanham, MD: Entomological Society of America</publisher><subject>Animals ; Biological and medical sciences ; Carpodacus mexicanus ; Columbidae ; Columbidae - virology ; Culex tarsalis ; Culicidae ; disease reservoirs ; doves ; Encephalitis Virus, St. Louis - isolation & purification ; Encephalitis, St. Louis - transmission ; Finches - virology ; Fringillidae ; Fundamental and applied biological sciences. Psychology ; host-pathogen relationships ; house finch ; Humans ; infection ; insect vectors ; Medically important nuisances and vectors, pests of stored products and materials: population survey and control ; mourning dove ; Saint Louis encephalitis virus ; St. Louis encephalitis virus ; transmission ; vector competence ; VECTOR/PATHOGEN/HOST INTERACTION, TRANSMISSION ; Vectors. Intermediate hosts ; viremia ; virus amplification ; virus transmission ; Zenaida macroura</subject><ispartof>Journal of medical entomology, 2004-09, Vol.41 (5), p.965-972</ispartof><rights>Entomological Society of America</rights><rights>2004 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-b438t-1b1dff165d6bbb31cbe2bb0ae275103934bc1b39a5293671e2227eca24846fde3</citedby><cites>FETCH-LOGICAL-b438t-1b1dff165d6bbb31cbe2bb0ae275103934bc1b39a5293671e2227eca24846fde3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://bioone.org/doi/pdf/10.1603/0022-2585-41.5.965$$EPDF$$P50$$Gbioone$$H</linktopdf><link.rule.ids>314,780,784,26978,27924,27925,52363</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=16136897$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/15535629$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Mahmood, Farida</creatorcontrib><creatorcontrib>Chiles, Robert E.</creatorcontrib><creatorcontrib>Fang, Ying</creatorcontrib><creatorcontrib>Barker, Christopher M.</creatorcontrib><creatorcontrib>Reisen, William K.</creatorcontrib><title>Role of Nestling Mourning Doves and House Finches as Amplifying Hosts of St. Louis Encephalitis Virus</title><title>Journal of medical entomology</title><addtitle>J Med Entomol</addtitle><description>Nestling mourning doves and house finches produced elevated viremias after inoculation with 2–3 log10 plaque-forming units (PFU) of St Louis encephalitis (SLE) virus and infected 67 and 70% of Culex tarsalis Coquillett that engorged upon them, respectively. Mosquito infection rates as well as the quantity of virus produced after extrinsic incubation increased as a function of the quantity of virus ingested and peaked during days 3–5 postinoculation in mourning doves and days 2–4 in house finches. Only female Cx. tarsalis with body titers ≥4.6 log10 PFU were capable of transmitting virus. Overall, 38% of females infected by feeding on mourning doves and 22% feeding on house finches were capable of transmission. The quantity of virus expectorated was variable, ranging from 0.8 to 3.4 log10 PFU and was greatest during periods when avian viremias were elevated. Our data indicated that nestling mourning doves and house finches were competent hosts for SLE virus and that the quantity of virus ingested from a viremic avian host varies during the course of the infection and determines transmission rates by the mosquito vector.</description><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>Carpodacus mexicanus</subject><subject>Columbidae</subject><subject>Columbidae - virology</subject><subject>Culex tarsalis</subject><subject>Culicidae</subject><subject>disease reservoirs</subject><subject>doves</subject><subject>Encephalitis Virus, St. Louis - isolation & purification</subject><subject>Encephalitis, St. Louis - transmission</subject><subject>Finches - virology</subject><subject>Fringillidae</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>host-pathogen relationships</subject><subject>house finch</subject><subject>Humans</subject><subject>infection</subject><subject>insect vectors</subject><subject>Medically important nuisances and vectors, pests of stored products and materials: population survey and control</subject><subject>mourning dove</subject><subject>Saint Louis encephalitis virus</subject><subject>St. Louis encephalitis virus</subject><subject>transmission</subject><subject>vector competence</subject><subject>VECTOR/PATHOGEN/HOST INTERACTION, TRANSMISSION</subject><subject>Vectors. Intermediate hosts</subject><subject>viremia</subject><subject>virus amplification</subject><subject>virus transmission</subject><subject>Zenaida macroura</subject><issn>0022-2585</issn><issn>1938-2928</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqN0E1P3DAQBmALgWBL-QMcii_tLYvHjp34iCh0Ky0gldKrZTs2uMrGWzupxL-vo12VKyd_6JnRzIvQOZAlCMIuCaG0orzlVQ1LvpSCH6AFSNZWVNL2EC3-gxP0IeffhJAWanmMToBzxgWVC-R-xN7h6PG9y2Mfhmd8F6c0zJev8a_LWA8dXsUpO3wbBvsy_2R8tdn2wb_OahXzmOcGj-MSr-MUMr4ZrNu-6D6M5fErpCl_REde99md7c9T9HR78_N6Va0fvn2_vlpXpmbtWIGBznsQvBPGGAbWOGoM0Y42HAiTrDYWDJOaU8lEA45S2jirad3WwneOnaIvu77bFP9MZSO1Cdm6vteDKzso0RBBa9IWSHfQpphzcl5tU9jo9KqAqDlcNWen5uxUDYqrEm4p-rTvPpmN695K9mkW8HkPdLa690kPNuQ3J4CJVjbFXeyc11Hp51TM0yMlwAiRXICY5yM7YUKMg3vPdP8A9kuZKg</recordid><startdate>20040901</startdate><enddate>20040901</enddate><creator>Mahmood, Farida</creator><creator>Chiles, Robert E.</creator><creator>Fang, Ying</creator><creator>Barker, Christopher M.</creator><creator>Reisen, William K.</creator><general>Entomological Society of America</general><scope>FBQ</scope><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>7X8</scope></search><sort><creationdate>20040901</creationdate><title>Role of Nestling Mourning Doves and House Finches as Amplifying Hosts of St. Louis Encephalitis Virus</title><author>Mahmood, Farida ; Chiles, Robert E. ; Fang, Ying ; Barker, Christopher M. ; Reisen, William K.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-b438t-1b1dff165d6bbb31cbe2bb0ae275103934bc1b39a5293671e2227eca24846fde3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Animals</topic><topic>Biological and medical sciences</topic><topic>Carpodacus mexicanus</topic><topic>Columbidae</topic><topic>Columbidae - virology</topic><topic>Culex tarsalis</topic><topic>Culicidae</topic><topic>disease reservoirs</topic><topic>doves</topic><topic>Encephalitis Virus, St. Louis - isolation & purification</topic><topic>Encephalitis, St. Louis - transmission</topic><topic>Finches - virology</topic><topic>Fringillidae</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>host-pathogen relationships</topic><topic>house finch</topic><topic>Humans</topic><topic>infection</topic><topic>insect vectors</topic><topic>Medically important nuisances and vectors, pests of stored products and materials: population survey and control</topic><topic>mourning dove</topic><topic>Saint Louis encephalitis virus</topic><topic>St. Louis encephalitis virus</topic><topic>transmission</topic><topic>vector competence</topic><topic>VECTOR/PATHOGEN/HOST INTERACTION, TRANSMISSION</topic><topic>Vectors. Intermediate hosts</topic><topic>viremia</topic><topic>virus amplification</topic><topic>virus transmission</topic><topic>Zenaida macroura</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mahmood, Farida</creatorcontrib><creatorcontrib>Chiles, Robert E.</creatorcontrib><creatorcontrib>Fang, Ying</creatorcontrib><creatorcontrib>Barker, Christopher M.</creatorcontrib><creatorcontrib>Reisen, William K.</creatorcontrib><collection>AGRIS</collection><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>MEDLINE - Academic</collection><jtitle>Journal of medical entomology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mahmood, Farida</au><au>Chiles, Robert E.</au><au>Fang, Ying</au><au>Barker, Christopher M.</au><au>Reisen, William K.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Role of Nestling Mourning Doves and House Finches as Amplifying Hosts of St. Louis Encephalitis Virus</atitle><jtitle>Journal of medical entomology</jtitle><addtitle>J Med Entomol</addtitle><date>2004-09-01</date><risdate>2004</risdate><volume>41</volume><issue>5</issue><spage>965</spage><epage>972</epage><pages>965-972</pages><issn>0022-2585</issn><eissn>1938-2928</eissn><coden>JMENA6</coden><abstract>Nestling mourning doves and house finches produced elevated viremias after inoculation with 2–3 log10 plaque-forming units (PFU) of St Louis encephalitis (SLE) virus and infected 67 and 70% of Culex tarsalis Coquillett that engorged upon them, respectively. Mosquito infection rates as well as the quantity of virus produced after extrinsic incubation increased as a function of the quantity of virus ingested and peaked during days 3–5 postinoculation in mourning doves and days 2–4 in house finches. Only female Cx. tarsalis with body titers ≥4.6 log10 PFU were capable of transmitting virus. Overall, 38% of females infected by feeding on mourning doves and 22% feeding on house finches were capable of transmission. The quantity of virus expectorated was variable, ranging from 0.8 to 3.4 log10 PFU and was greatest during periods when avian viremias were elevated. Our data indicated that nestling mourning doves and house finches were competent hosts for SLE virus and that the quantity of virus ingested from a viremic avian host varies during the course of the infection and determines transmission rates by the mosquito vector.</abstract><cop>Lanham, MD</cop><pub>Entomological Society of America</pub><pmid>15535629</pmid><doi>10.1603/0022-2585-41.5.965</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Journal of medical entomology, 2004-09, Vol.41 (5), p.965-972 |
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| source | MEDLINE; BioOne Complete; Oxford University Press Journals All Titles (1996-Current) |
| subjects | Animals Biological and medical sciences Carpodacus mexicanus Columbidae Columbidae - virology Culex tarsalis Culicidae disease reservoirs doves Encephalitis Virus, St. Louis - isolation & purification Encephalitis, St. Louis - transmission Finches - virology Fringillidae Fundamental and applied biological sciences. Psychology host-pathogen relationships house finch Humans infection insect vectors Medically important nuisances and vectors, pests of stored products and materials: population survey and control mourning dove Saint Louis encephalitis virus St. Louis encephalitis virus transmission vector competence VECTOR/PATHOGEN/HOST INTERACTION, TRANSMISSION Vectors. Intermediate hosts viremia virus amplification virus transmission Zenaida macroura |
| title | Role of Nestling Mourning Doves and House Finches as Amplifying Hosts of St. Louis Encephalitis Virus |
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