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Coltiviruses and seadornaviruses in North America, Europe, and Asia.

Attoui H, Mohd Jaafar F, de Micco P, de Lamballerie X - Emerging Infect. Dis. (2005)

Bottom Line: The epidemiology of seadornaviruses remains poorly documented.Evidence suggests that BAV is responsible for encephalitis in humans.Infection with BAV may be underreported because it circulates in regions with a high incidence of Japanese encephalitis and could be misdiagnosed as this disease.

View Article: PubMed Central - PubMed

Affiliation: Unité des Virus Emergents EA3292, Faculté de Médecine de Marseille, Université de la Méditerranée, 27 boulevard Jean Moulin, 13005 Marseille CEDEX 5, France. houssam.attoui@medecine.univ-mrs.fr

ABSTRACT
Coltiviruses are tickborne viruses of the genus Coltivirus. The type species, Colorado tick fever virus (from North America), has been isolated from patients with flulike syndromes, meningitis, encephalitis, and other severe complications. Another coltivirus, Eyach virus, has been isolated from ticks in France and Germany and incriminated in febrile illnesses and neurologic syndromes. Seadornaviruses are endemic in Southeast Asia, particularly Indonesia and China. The prototype virus of the genus, Banna virus (BAV), has been isolated from many mosquito species, humans with encephalitis, pigs, and cattle. Two other seadornaviruses, Kadipiro and Liao Ning, were isolated only from mosquitoes. The epidemiology of seadornaviruses remains poorly documented. Evidence suggests that BAV is responsible for encephalitis in humans. Infection with BAV may be underreported because it circulates in regions with a high incidence of Japanese encephalitis and could be misdiagnosed as this disease.

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Related in: MedlinePlus

Electropherotypes of coltiviruses and seadornaviruses on 1% agarose gels. A) Colorado tick fever virus (CTFV-Fl) and California hare coltivirus (CTFV-Ca). B) Banna virus (BAV) and Kadipiro virus (KDV).
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Figure 2: Electropherotypes of coltiviruses and seadornaviruses on 1% agarose gels. A) Colorado tick fever virus (CTFV-Fl) and California hare coltivirus (CTFV-Ca). B) Banna virus (BAV) and Kadipiro virus (KDV).

Mentions: The genome consists of 12 dsRNA segments designated Seg-1 to Seg-12 in order of reduced molecular weight as observed during agarose and polyacrylamide gel electrophoresis. The genome contains ≈29,000 bp and segment size ranges from 675 bp to 4,350 bp (18,19). The genomic dsRNA of CTFV has an electropherotype (Figure 2A) similar to that of CTFV-Ca. CTFV produces a cytopathic effect (CPE) in mammalian cells, including human carcinoma cells, monkey kidney cells (buffalo green monkey [BGM] and Vero), hamster kidney cells (BHK-21), and mouse fibroblasts (L-929). Cells infected with CTFV develop granular matrices that contain viruslike particles in the cytoplasm. These structures are similar to viral inclusion bodies produced during orbivirus infections (15). In addition, bundles of filaments (tubules) characterized by cross-striations and kinky threads are found in the cytoplasm and, in some cases, in the nucleus of infected cells (8,15,17). These tubules may also be comparable to those found in orbivirus-infected cells. More than 90% of virus particles remain associated with debris after cell disruption.


Coltiviruses and seadornaviruses in North America, Europe, and Asia.

Attoui H, Mohd Jaafar F, de Micco P, de Lamballerie X - Emerging Infect. Dis. (2005)

Electropherotypes of coltiviruses and seadornaviruses on 1% agarose gels. A) Colorado tick fever virus (CTFV-Fl) and California hare coltivirus (CTFV-Ca). B) Banna virus (BAV) and Kadipiro virus (KDV).
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3367365&req=5

Figure 2: Electropherotypes of coltiviruses and seadornaviruses on 1% agarose gels. A) Colorado tick fever virus (CTFV-Fl) and California hare coltivirus (CTFV-Ca). B) Banna virus (BAV) and Kadipiro virus (KDV).
Mentions: The genome consists of 12 dsRNA segments designated Seg-1 to Seg-12 in order of reduced molecular weight as observed during agarose and polyacrylamide gel electrophoresis. The genome contains ≈29,000 bp and segment size ranges from 675 bp to 4,350 bp (18,19). The genomic dsRNA of CTFV has an electropherotype (Figure 2A) similar to that of CTFV-Ca. CTFV produces a cytopathic effect (CPE) in mammalian cells, including human carcinoma cells, monkey kidney cells (buffalo green monkey [BGM] and Vero), hamster kidney cells (BHK-21), and mouse fibroblasts (L-929). Cells infected with CTFV develop granular matrices that contain viruslike particles in the cytoplasm. These structures are similar to viral inclusion bodies produced during orbivirus infections (15). In addition, bundles of filaments (tubules) characterized by cross-striations and kinky threads are found in the cytoplasm and, in some cases, in the nucleus of infected cells (8,15,17). These tubules may also be comparable to those found in orbivirus-infected cells. More than 90% of virus particles remain associated with debris after cell disruption.

Bottom Line: The epidemiology of seadornaviruses remains poorly documented.Evidence suggests that BAV is responsible for encephalitis in humans.Infection with BAV may be underreported because it circulates in regions with a high incidence of Japanese encephalitis and could be misdiagnosed as this disease.

View Article: PubMed Central - PubMed

Affiliation: Unité des Virus Emergents EA3292, Faculté de Médecine de Marseille, Université de la Méditerranée, 27 boulevard Jean Moulin, 13005 Marseille CEDEX 5, France. houssam.attoui@medecine.univ-mrs.fr

ABSTRACT
Coltiviruses are tickborne viruses of the genus Coltivirus. The type species, Colorado tick fever virus (from North America), has been isolated from patients with flulike syndromes, meningitis, encephalitis, and other severe complications. Another coltivirus, Eyach virus, has been isolated from ticks in France and Germany and incriminated in febrile illnesses and neurologic syndromes. Seadornaviruses are endemic in Southeast Asia, particularly Indonesia and China. The prototype virus of the genus, Banna virus (BAV), has been isolated from many mosquito species, humans with encephalitis, pigs, and cattle. Two other seadornaviruses, Kadipiro and Liao Ning, were isolated only from mosquitoes. The epidemiology of seadornaviruses remains poorly documented. Evidence suggests that BAV is responsible for encephalitis in humans. Infection with BAV may be underreported because it circulates in regions with a high incidence of Japanese encephalitis and could be misdiagnosed as this disease.

Show MeSH
Related in: MedlinePlus