Comparative studies on the vector capacity of the different stages of Amblyomma variegatum Fabricius and Hyalomma rufipes Koch for Congo virus, after intracoelomic inoculation
Groups of nymphs and adults of Hyalomma rufipes and larvae, nymphs and adults of Amblyomma variegatum were infected by intracoelomic inoculation with Congo virus at concentrations of 10 3.5LD 50 (Group A), 10 1.5LD 50 (Group B) and 10 0.5LD 50 (Group C). The infection rates for the different groups...
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| Veröffentlicht in: | Veterinary parasitology 1991, Vol.38 (2), p.215-223 |
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| creator | Okorie, Tonye G. |
| description | Groups of nymphs and adults of
Hyalomma rufipes and larvae, nymphs and adults of
Amblyomma variegatum were infected by intracoelomic inoculation with Congo virus at concentrations of 10
3.5LD
50 (Group A), 10
1.5LD
50 (Group B) and 10
0.5LD
50 (Group C). The infection rates for the different groups were: Groups A, 92–100% for all stages of ticks, except for adult
H rufipes which had 87%; Group B, 56.8, 68.1 and 50.7% for larvae, nymphs and adults of
A. variegatum, respectively, and 96.3 and 84.4% for nymphs and adults of
H. rufipes, respectively; Group C, 0% for larvae, nymphs and adults of
A. variegatum and 8 and 1.7%, respectively, for nymphs and adult of
H. rufipes. The 1–5% infection threshold was 10
0.5LD
50 for nymphs of
H. rufipes and a dose greater than this for all the other stages of the two species of ticks. The 50% infection threshold was 10
1.5LD
50 for larvae and adults of
A. variegatum, but less than 10
1.5LD
50 for nymphs of
A. variegatum and nymphs and adults of
H. rufipes. Peak virus titres obtained for
H. rufipes were 10
6.0 for Group A and B nymphs and 10
3.0 for Group A and B adults, and 10
1.0 each for Group C nymphs and adults. For
A. variegatum, the peak titres for Groups A, B and C were, respectively, 10
1.0, 10
0.8, and 0 for larvae; 10
3.0, 10
0.8 and 0 for nymphs and 10
1.5, 10
0.6 and 0 for adults. Sera from 100% (24/24) of rabbits used to feed adult
H. rufipes and from 65% (31/48) used to feed nymphs and adult
A. variegatum were positive for compliment fixation antibody to Congo virus at a titre of 1:8 from Days 15–35 postattachment of ticks. Viremia in rabbit was detected in 12.5% (3/25) of rabbits used to feed adult
H. rufipes. |
| doi_str_mv | 10.1016/0304-4017(91)90131-E |
| format | Article |
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Hyalomma rufipes and larvae, nymphs and adults of
Amblyomma variegatum were infected by intracoelomic inoculation with Congo virus at concentrations of 10
3.5LD
50 (Group A), 10
1.5LD
50 (Group B) and 10
0.5LD
50 (Group C). The infection rates for the different groups were: Groups A, 92–100% for all stages of ticks, except for adult
H rufipes which had 87%; Group B, 56.8, 68.1 and 50.7% for larvae, nymphs and adults of
A. variegatum, respectively, and 96.3 and 84.4% for nymphs and adults of
H. rufipes, respectively; Group C, 0% for larvae, nymphs and adults of
A. variegatum and 8 and 1.7%, respectively, for nymphs and adult of
H. rufipes. The 1–5% infection threshold was 10
0.5LD
50 for nymphs of
H. rufipes and a dose greater than this for all the other stages of the two species of ticks. The 50% infection threshold was 10
1.5LD
50 for larvae and adults of
A. variegatum, but less than 10
1.5LD
50 for nymphs of
A. variegatum and nymphs and adults of
H. rufipes. Peak virus titres obtained for
H. rufipes were 10
6.0 for Group A and B nymphs and 10
3.0 for Group A and B adults, and 10
1.0 each for Group C nymphs and adults. For
A. variegatum, the peak titres for Groups A, B and C were, respectively, 10
1.0, 10
0.8, and 0 for larvae; 10
3.0, 10
0.8 and 0 for nymphs and 10
1.5, 10
0.6 and 0 for adults. Sera from 100% (24/24) of rabbits used to feed adult
H. rufipes and from 65% (31/48) used to feed nymphs and adult
A. variegatum were positive for compliment fixation antibody to Congo virus at a titre of 1:8 from Days 15–35 postattachment of ticks. Viremia in rabbit was detected in 12.5% (3/25) of rabbits used to feed adult
H. rufipes.</description><identifier>ISSN: 0304-4017</identifier><identifier>EISSN: 1873-2550</identifier><identifier>DOI: 10.1016/0304-4017(91)90131-E</identifier><identifier>PMID: 1907050</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Acari ; AMBLYOMMA VARIEGATUM ; Animals ; Arachnid Vectors - growth & development ; Arachnid Vectors - microbiology ; BUNYAVIRIDAE ; ENFERMEDADES TRANSM POR GARRAPATAS ; Hemorrhagic Fever Virus, Crimean-Congo - growth & development ; Hemorrhagic Fever, Crimean - microbiology ; HYALOMMA ; Ixodidae ; Larva - microbiology ; MALADIE TRANSMISSIBLE PAR TIQUES ; Nymph - microbiology ; Species Specificity ; TICKBORNE DISEASES ; Ticks - growth & development ; Ticks - microbiology ; VECTEUR DE MALADIE ; VECTORES ; VECTORS</subject><ispartof>Veterinary parasitology, 1991, Vol.38 (2), p.215-223</ispartof><rights>1991</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c322t-dd72a0569b395cf4389384ea6178552f79fa2b805a60d48d966d5145df252c823</citedby><cites>FETCH-LOGICAL-c322t-dd72a0569b395cf4389384ea6178552f79fa2b805a60d48d966d5145df252c823</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/030440179190131E$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,4010,27900,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/1907050$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Okorie, Tonye G.</creatorcontrib><title>Comparative studies on the vector capacity of the different stages of Amblyomma variegatum Fabricius and Hyalomma rufipes Koch for Congo virus, after intracoelomic inoculation</title><title>Veterinary parasitology</title><addtitle>Vet Parasitol</addtitle><description>Groups of nymphs and adults of
Hyalomma rufipes and larvae, nymphs and adults of
Amblyomma variegatum were infected by intracoelomic inoculation with Congo virus at concentrations of 10
3.5LD
50 (Group A), 10
1.5LD
50 (Group B) and 10
0.5LD
50 (Group C). The infection rates for the different groups were: Groups A, 92–100% for all stages of ticks, except for adult
H rufipes which had 87%; Group B, 56.8, 68.1 and 50.7% for larvae, nymphs and adults of
A. variegatum, respectively, and 96.3 and 84.4% for nymphs and adults of
H. rufipes, respectively; Group C, 0% for larvae, nymphs and adults of
A. variegatum and 8 and 1.7%, respectively, for nymphs and adult of
H. rufipes. The 1–5% infection threshold was 10
0.5LD
50 for nymphs of
H. rufipes and a dose greater than this for all the other stages of the two species of ticks. The 50% infection threshold was 10
1.5LD
50 for larvae and adults of
A. variegatum, but less than 10
1.5LD
50 for nymphs of
A. variegatum and nymphs and adults of
H. rufipes. Peak virus titres obtained for
H. rufipes were 10
6.0 for Group A and B nymphs and 10
3.0 for Group A and B adults, and 10
1.0 each for Group C nymphs and adults. For
A. variegatum, the peak titres for Groups A, B and C were, respectively, 10
1.0, 10
0.8, and 0 for larvae; 10
3.0, 10
0.8 and 0 for nymphs and 10
1.5, 10
0.6 and 0 for adults. Sera from 100% (24/24) of rabbits used to feed adult
H. rufipes and from 65% (31/48) used to feed nymphs and adult
A. variegatum were positive for compliment fixation antibody to Congo virus at a titre of 1:8 from Days 15–35 postattachment of ticks. Viremia in rabbit was detected in 12.5% (3/25) of rabbits used to feed adult
H. rufipes.</description><subject>Acari</subject><subject>AMBLYOMMA VARIEGATUM</subject><subject>Animals</subject><subject>Arachnid Vectors - growth & development</subject><subject>Arachnid Vectors - microbiology</subject><subject>BUNYAVIRIDAE</subject><subject>ENFERMEDADES TRANSM POR GARRAPATAS</subject><subject>Hemorrhagic Fever Virus, Crimean-Congo - growth & development</subject><subject>Hemorrhagic Fever, Crimean - microbiology</subject><subject>HYALOMMA</subject><subject>Ixodidae</subject><subject>Larva - microbiology</subject><subject>MALADIE TRANSMISSIBLE PAR TIQUES</subject><subject>Nymph - microbiology</subject><subject>Species Specificity</subject><subject>TICKBORNE DISEASES</subject><subject>Ticks - growth & development</subject><subject>Ticks - microbiology</subject><subject>VECTEUR DE MALADIE</subject><subject>VECTORES</subject><subject>VECTORS</subject><issn>0304-4017</issn><issn>1873-2550</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1991</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkd-K1DAUxoMo6-zqC4hCrsQFq0natM2NsAyzrjjojV6H0_yZjbRNTdLCPJWvaGa66J1eHXK-33dOOB9CLyl5Rwmt35OSVEVFaPNG0GtBaEmL3SO0oW1TFoxz8hht_iBP0WWMPwghFambC3RBBWkIJxv0a-uHCQIktxgc06ydidiPON0bvBiVfMAKJlAuHbG357Z21ppgxpR5OJxwi2-Grj_6YQC8QHDmAGke8C10wSk3RwyjxndH6M9EmK2bsu2zV_fY5gVbPx48XlyY41sMNpmA3ZgCKG-yw6n88mru8x_9-Aw9sdBH8_yhXqHvt7tv27ti__Xjp-3NvlAlY6nQumFAeC26UnBlq7IVZVsZqGnTcs5sIyywriUcaqKrVou61pxWXFvGmWpZeYVer3On4H_OJiY5uKhM38No_Bxlm-9Xs6r8L0i5oA1tRAarFVTBxxiMlVNwA4SjpESeApWntOQpLSmoPAcqd9n26mH-3A1G_zWtCWb9xapb8BIOwUX5ZS8o4ZzyLH5YRZNPtTgTZFTOjMpoF3K4Unv37-2_AdW6ums</recordid><startdate>1991</startdate><enddate>1991</enddate><creator>Okorie, Tonye G.</creator><general>Elsevier B.V</general><scope>FBQ</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>7SS</scope><scope>7U9</scope><scope>H94</scope><scope>7X8</scope></search><sort><creationdate>1991</creationdate><title>Comparative studies on the vector capacity of the different stages of Amblyomma variegatum Fabricius and Hyalomma rufipes Koch for Congo virus, after intracoelomic inoculation</title><author>Okorie, Tonye G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c322t-dd72a0569b395cf4389384ea6178552f79fa2b805a60d48d966d5145df252c823</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1991</creationdate><topic>Acari</topic><topic>AMBLYOMMA VARIEGATUM</topic><topic>Animals</topic><topic>Arachnid Vectors - growth & development</topic><topic>Arachnid Vectors - microbiology</topic><topic>BUNYAVIRIDAE</topic><topic>ENFERMEDADES TRANSM POR GARRAPATAS</topic><topic>Hemorrhagic Fever Virus, Crimean-Congo - growth & development</topic><topic>Hemorrhagic Fever, Crimean - microbiology</topic><topic>HYALOMMA</topic><topic>Ixodidae</topic><topic>Larva - microbiology</topic><topic>MALADIE TRANSMISSIBLE PAR TIQUES</topic><topic>Nymph - microbiology</topic><topic>Species Specificity</topic><topic>TICKBORNE DISEASES</topic><topic>Ticks - growth & development</topic><topic>Ticks - microbiology</topic><topic>VECTEUR DE MALADIE</topic><topic>VECTORES</topic><topic>VECTORS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Okorie, Tonye G.</creatorcontrib><collection>AGRIS</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Virology and AIDS Abstracts</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Veterinary parasitology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Okorie, Tonye G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparative studies on the vector capacity of the different stages of Amblyomma variegatum Fabricius and Hyalomma rufipes Koch for Congo virus, after intracoelomic inoculation</atitle><jtitle>Veterinary parasitology</jtitle><addtitle>Vet Parasitol</addtitle><date>1991</date><risdate>1991</risdate><volume>38</volume><issue>2</issue><spage>215</spage><epage>223</epage><pages>215-223</pages><issn>0304-4017</issn><eissn>1873-2550</eissn><abstract>Groups of nymphs and adults of
Hyalomma rufipes and larvae, nymphs and adults of
Amblyomma variegatum were infected by intracoelomic inoculation with Congo virus at concentrations of 10
3.5LD
50 (Group A), 10
1.5LD
50 (Group B) and 10
0.5LD
50 (Group C). The infection rates for the different groups were: Groups A, 92–100% for all stages of ticks, except for adult
H rufipes which had 87%; Group B, 56.8, 68.1 and 50.7% for larvae, nymphs and adults of
A. variegatum, respectively, and 96.3 and 84.4% for nymphs and adults of
H. rufipes, respectively; Group C, 0% for larvae, nymphs and adults of
A. variegatum and 8 and 1.7%, respectively, for nymphs and adult of
H. rufipes. The 1–5% infection threshold was 10
0.5LD
50 for nymphs of
H. rufipes and a dose greater than this for all the other stages of the two species of ticks. The 50% infection threshold was 10
1.5LD
50 for larvae and adults of
A. variegatum, but less than 10
1.5LD
50 for nymphs of
A. variegatum and nymphs and adults of
H. rufipes. Peak virus titres obtained for
H. rufipes were 10
6.0 for Group A and B nymphs and 10
3.0 for Group A and B adults, and 10
1.0 each for Group C nymphs and adults. For
A. variegatum, the peak titres for Groups A, B and C were, respectively, 10
1.0, 10
0.8, and 0 for larvae; 10
3.0, 10
0.8 and 0 for nymphs and 10
1.5, 10
0.6 and 0 for adults. Sera from 100% (24/24) of rabbits used to feed adult
H. rufipes and from 65% (31/48) used to feed nymphs and adult
A. variegatum were positive for compliment fixation antibody to Congo virus at a titre of 1:8 from Days 15–35 postattachment of ticks. Viremia in rabbit was detected in 12.5% (3/25) of rabbits used to feed adult
H. rufipes.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>1907050</pmid><doi>10.1016/0304-4017(91)90131-E</doi><tpages>9</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0304-4017 |
| ispartof | Veterinary parasitology, 1991, Vol.38 (2), p.215-223 |
| issn | 0304-4017 1873-2550 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_80706243 |
| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Acari AMBLYOMMA VARIEGATUM Animals Arachnid Vectors - growth & development Arachnid Vectors - microbiology BUNYAVIRIDAE ENFERMEDADES TRANSM POR GARRAPATAS Hemorrhagic Fever Virus, Crimean-Congo - growth & development Hemorrhagic Fever, Crimean - microbiology HYALOMMA Ixodidae Larva - microbiology MALADIE TRANSMISSIBLE PAR TIQUES Nymph - microbiology Species Specificity TICKBORNE DISEASES Ticks - growth & development Ticks - microbiology VECTEUR DE MALADIE VECTORES VECTORS |
| title | Comparative studies on the vector capacity of the different stages of Amblyomma variegatum Fabricius and Hyalomma rufipes Koch for Congo virus, after intracoelomic inoculation |
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