Pathogenic characteristics of highly virulent avian reovirus, strain 58-132, isolated from a chicken with tenosynovitis.

公三, 高瀬; 比呂志, 西川; 富土男, 野中; 進二, 山田

doi:10.1292/jvms1939.47.567

Cited by 5 publications

(6 citation statements)

References 10 publications

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“…In our previous experiments, we have confirmed that chickens older than 3 weeks rarely develop tenosynovitis if they are infected orally (Takase et al, 1985). On the other hand, this study suggests that chicks having a GMT of 1:100 or higher can resist tenosynovitis.…”

Section: Discussionsupporting

confidence: 73%

“…The supernatant was inoculated into a rolling tube of CKC cultures to observe the appearance of CPE due to avian reovirus infection (Takase et al, 1985).…”

Section: Virus Recoverymentioning

confidence: 99%

“…The tissues surrounding the hock joints (right) were removed, fixed in 10% formalin, embedded in paraffin, sectioned at 5 /an, stained with haemotoxylin and eosin, and observed for microscopic changes (Takase et al, 1985).…”

Section: Histopathological Examinationmentioning

confidence: 99%

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Correlation between neutralizing antibody titre and protection from tenosynovitis in avian reovirus infections

1996

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SUMMARYThe relationship between neutralizing antibody titre and protection from tenosynovitis caused by avian reovirus infection was examined using actively or passively immunized chickens. Actively immunized groups which developed geometric mean neutralizing antibody titres (GMT) of 1:238 or higher exhibited good protection (more than 71%) against challenge with avian reovirus strain 58-132 via the footpad. On the other hand, 87% of passively immunized chicks, which received chicken serum hyperimmune to avian reovirus in the yolk sac and possessed GMT of 1:100 upon hatching, were protected against oral challenge. Given the age-related resistance to reoviral tenosynovitis and the half-life of maternal antibody, chicks should ideally have 1:1600 or higher maternal antibody titre at the time of hatching to be protected against oral infection until 3 weeks of age.

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Section: Discussionsupporting

confidence: 73%

“…The supernatant was inoculated into a rolling tube of CKC cultures to observe the appearance of CPE due to avian reovirus infection (Takase et al, 1985).…”

Section: Virus Recoverymentioning

confidence: 99%

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Correlation between neutralizing antibody titre and protection from tenosynovitis in avian reovirus infections

1996

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“…Infectious virus titer was determined by a plaque assay (Kawagishi et al, 2016). Avian reovirus strain 58-132 (Takase et al, 1985), simian rotavirus strain SA11 (Taniguchi et al, 1994), and mammalian orthoreovirus prototype strain T1L were amplified in QT6, MA104, and L929 cells, respectively.…”

Section: Cell and Virusesmentioning

confidence: 99%

Lethal murine infection model for human respiratory disease-associated Pteropine orthoreovirus

et al. 2018

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Pteropine orthoreovirus (PRV) is an emerging bat-borne human pathogen causing severe respiratory illness. To date, however, the evaluation of PRV virulence has largely depended on the limited numbers of clinical cases owing to the lack of animal models. To develop an in vivo model of PRV infection, an inbred C3H mouse strain was infected intranasally with pathogenic PRV strain Miyazaki-Bali/2007. C3H mice suffered severe lung infection with significant body weight reduction and died within 7 days after intranasal infection. Infectious viruses were isolated mainly from the lungs and trachea. Histopathological examination revealed interstitial pneumonia with monocytes infiltration. Following repeated intranasal infection, mice developed antibodies to particular structural and non-structural proteins of PRV. The results of these immunological assays will help to develop laboratory protocols for sero-epidemiological studies. Our small rodent model of lethal respiratory infection will further allow investigation of the molecular mechanisms underlying the high pathogenicity of PRV.

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“…Orthoreovirus Miyazaki-Bali/2007 isolated in this study was used. Additionally, avian orthoreovirus [16], mammalian orthoreovirus 1 [17], and mammalian orthoreovirus 3 [18] were used for evaluation of migration pattern of Miyazaki-Bali/2007-dsRNA segments in comparison with those of these viruses.…”

Section: Virusesmentioning

confidence: 99%

Imported Case of Acute Respiratory Tract Infection Associated with a Member of Species Nelson Bay Orthoreovirus

et al. 2014

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A Japanese man suffered from acute respiratory tract infection after returning to Japan from Bali, Indonesia in 2007. Miyazaki-Bali/2007, a strain of the species of Nelson Bay orthoreovirus, was isolated from the patient's throat swab using Vero cells, in which syncytium formation was observed. This is the sixth report describing a patient with respiratory tract infection caused by an orthoreovirus classified to the species of Nelson Bay orthoreovirus. Given the possibility that all of the patients were infected in Malaysia and Indonesia, prospective surveillance on orthoreovirus infections should be carried out in Southeast Asia. Furthermore, contact surveillance study suggests that the risk of human-to-human infection of the species of Nelson Bay orthoreovirus would seem to be low.

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Pathogenic characteristics of highly virulent avian reovirus, strain 58-132, isolated from a chicken with tenosynovitis.

Cited by 5 publications

References 10 publications

Correlation between neutralizing antibody titre and protection from tenosynovitis in avian reovirus infections

Correlation between neutralizing antibody titre and protection from tenosynovitis in avian reovirus infections

Lethal murine infection model for human respiratory disease-associated Pteropine orthoreovirus

Imported Case of Acute Respiratory Tract Infection Associated with a Member of Species Nelson Bay Orthoreovirus

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