Propagation of the primary agent of virus pneumonia of pigs and determination of the microbiology of naturally occurring cases

L'Ecuyer, C.

doi:10.31274/rtd-180813-3078

Cited by 2 publications

(3 citation statements)

References 27 publications

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“…Gulrajani and Beveridge (1951) failed to infect embryonated hens eggs by either allantoic-sac or chorio-allantoic membrane inoculation. Unsuccessful attempts at propagating the agent in chick embryos were also reported by Hjârre et al (1952a), Plowright (1953)^ Penttinen and Rislakki (1953) and L'Ecuyer (1962). Palyusik (1953) inoculated the chorio-allantolc membrane and the allantoic sac of 8 and 14 day-old embryonated hens eggs with a suspension of enzootic swine pneumonia lung.…”

Section: Virus Pneumonia Of Pigsmentioning

confidence: 90%

Characterization of a causative agent of virus pneumonia of pigs (VPP)

Maré

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Signature was redacted for privacy.Signature was redacted for privacy.Signature was redacted for privacy. il TABLE OF CONTENTS Page SUMMARY 211 LITERATURE CITED 214 ACKNOWLEDGMENTS 228 susceptible pigs with material filtered through Gradocal mem branes of 0,8fj. APD, but not with 0,^6jx APD membrane fil trates, Macroscopic pneumonic lesions were present on the twelfth day postinoculation. Tney failed to propagate the infectious agent in the allantoic cavity or on the chorio allantoic membrane of embryonated hen's eggs, and they could not infect mice or ferrets with the agent. They recognized that their disease resembled the chronic pneumonia described by Fullar (1948, 1949a, 1949b) in Australia, and called tne disease by the name suggested by him, namely "Infectious Pneumonia of Pigs." The emphasis in this review will be on the attempts at propagation and characterization of the causative agent of virus pneumonia of pigs since excellent reviews by Betts (1953), Hjârre (1957), L'Ecuyer et al. (196I), L'Ecuyer (1962) and Young (1964a, 1964b) adequately cover the historical, geo graphic and economic aspects of the disease. L'Ecuyer (1962), in a very comprehensive review of the literature pertaining to pneumonia in swine, discussed the emergence of virus pneumonia of pigs as a recognizable entity, differing from swine influenza on clinical, pathological and etiological basis. He also presented a detailed discussion of the role of a number of bacterial species and Mycoplasma hyorhinls as primary or secondary pathogens in swine pneumonia.

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Section: Virus Pneumonia Of Pigsmentioning

confidence: 90%

Characterization of a causative agent of virus pneumonia of pigs (VPP)

Maré

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“…The literature concerning swine enzootic pneumonia (SEP) has increased in volume in recent years as interest in the condition has increased. îfcich of the early literature has been reviewed by Betts (1953), L'Ecuyer (1962), Nare^ (1965), and Mare^ and Switzer (1966c). Gulrajani and Beveridge (1951) recognized a chronic pneumonia of swine in Britain •sdiich differed from swine influenza.…”

Section: Historymentioning

confidence: 99%

“…Both L'Ecuyer (1962) serially transmitted this pneu monia utilizing the same general technique. Lesions from experimentally Infected pigs were aseptically removed, cut into small pieces and stored at minus thirty degrees Centigrade.…”

Section: Schippef Etmentioning

confidence: 99%

Chemoprophylaxis, chemotherapy, and economic effect of swine enzootic pneumonia

Huhn

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Propagation of the primary agent of virus pneumonia of pigs and determination of the microbiology of naturally occurring cases

Cited by 2 publications

References 27 publications

Characterization of a causative agent of virus pneumonia of pigs (VPP)

Characterization of a causative agent of virus pneumonia of pigs (VPP)

Chemoprophylaxis, chemotherapy, and economic effect of swine enzootic pneumonia

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