2010
DOI: 10.1099/vir.0.020842-0
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Age-dependent differences in the pathogenesis of bovine respiratory syncytial virus infections related to the development of natural immunocompetence

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Cited by 40 publications
(43 citation statements)
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“…Most importantly, there is a similar age dependency in the development of bRSV disease: more severe LRTD occurs in young calves, whereas neonatal infection follows a nonspecific pattern of disease (4,52,111). bRSV infection in calves causes overt clinical signs of URTD and LRTD (peak at day 7 after experimental inoculation), such as nasal discharge, cough, tachypnea with chest retractions, wheezing, hypercapnia, and hypoxemia (4,6,25,49,52,111,115). General symptoms, including fever, anorexia, and reduced activity, are also observed.…”
Section: Cognate Host-pneumovirus Modelsmentioning
confidence: 99%
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“…Most importantly, there is a similar age dependency in the development of bRSV disease: more severe LRTD occurs in young calves, whereas neonatal infection follows a nonspecific pattern of disease (4,52,111). bRSV infection in calves causes overt clinical signs of URTD and LRTD (peak at day 7 after experimental inoculation), such as nasal discharge, cough, tachypnea with chest retractions, wheezing, hypercapnia, and hypoxemia (4,6,25,49,52,111,115). General symptoms, including fever, anorexia, and reduced activity, are also observed.…”
Section: Cognate Host-pneumovirus Modelsmentioning
confidence: 99%
“…Finally, there is evidence of extensive apoptosis of lung epithelial cells (115). In addition, calves with bRSV LRTD show a strong lung neutrophil and macrophage response, whereas effector lymphocytes are detected in lower numbers in lung tissue or BALF (4,69,115). bRSV LRTD is associated with an increase in the levels of IFN-␥, TNF-␣, and IL-6 in BALF (4).…”
Section: Cognate Host-pneumovirus Modelsmentioning
confidence: 99%
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“…Although RSV infection in chimpanzees causes profuse rhinorrhea, it has not resulted in LRTI (3). RSV infection in owl monkeys (27), cebus monkeys (9) (30), bonnet monkeys (26), cynomolgus macaques (8), and African Green monkeys (17) results in histological evidence of mild interstitial pneumonia, but these animals have not developed tachypnea or hypoxia.…”
mentioning
confidence: 99%
“…Nevertheless BRSV re-infection can occur through life, although becoming less severe with increase in age. The capacity to produce pro-inflammatory tumor necrosis factor alpha appeared to increase with age, and may explain the age-dependent differences in respiratory syncytial virus pathogenesis (Antonis et al, 2010). Valarcher and Taylor (2007) mentioned age as important risk factors associated with BRSV.…”
Section: Resultsmentioning
confidence: 99%