On the morphological evaluation of the neurovirulence safety of attenuated mumps virus strains in monkeys

In tests with intracerebral inoculation of Macacus rhesus, the neurovirulent properties of two variants of attenuated mumps virus, obtained at different passage levels (19th and 22nd) in the primary cultures of guinea-pig kidney and Japanese quail embryo fibroblast cells, were studied. Neither varia...

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Veröffentlicht in:Journal of biological standardization 1979, Vol.7 (1), p.9,IN1,12-11,IN5,19
Hauptverfasser: Levenbuk, I.S., Nikolayeva, M.A., Chigirinsky, A.E., Ralf, N.M., Kozlov, V.G., Vardanyan, N.V., Sliopushkina, V.G., Kolomiets, O.L., Rukhamina, M.L., Grigoryeva, L.V.
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container_end_page 11,IN5,19
container_issue 1
container_start_page 9,IN1,12
container_title Journal of biological standardization
container_volume 7
creator Levenbuk, I.S.
Nikolayeva, M.A.
Chigirinsky, A.E.
Ralf, N.M.
Kozlov, V.G.
Vardanyan, N.V.
Sliopushkina, V.G.
Kolomiets, O.L.
Rukhamina, M.L.
Grigoryeva, L.V.
description In tests with intracerebral inoculation of Macacus rhesus, the neurovirulent properties of two variants of attenuated mumps virus, obtained at different passage levels (19th and 22nd) in the primary cultures of guinea-pig kidney and Japanese quail embryo fibroblast cells, were studied. Neither variants damaged the neurons, but caused ventriculitis phenomena, often most pronounced in the posterior portions of central parts of lateral ventricles, i.e. far from the site of virus inoculation. By the immunofluorescent method the specificity of the pathological process was confirmed: the antigen mostly detected in the ependyma, the subependymal zone, in the cells of inflammatory infiltrates located in this zone and in the stroma of choroid plexus, as well as in a number of neurons in the insular cortex area. Tests revealed that the neurovirulent properties are enhanced in the higher passage level variant, after the inoculation in which some monkeys developed a picture of adhesive ventriculitis, sometimes up to an almost complete obliteration of the ventricle lumen. Attention is drawn to the necessity of investigating the brain ventricular system when attenuated strains—candidates for live mumps vaccines—are studied in the neurovirulence safety test in monkeys.
doi_str_mv 10.1016/S0092-1157(79)80033-5
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subjects Animals
Antigens, Viral - analysis
Central Nervous System - immunology
Central Nervous System - microbiology
Evaluation Studies as Topic
Haplorhini
Histological Techniques
Immunologic Techniques
Injections, Intraventricular
Macaca
Mumps Vaccine - administration & dosage
Mumps Vaccine - standards
Mumps virus - pathogenicity
Virus Cultivation - methods
title On the morphological evaluation of the neurovirulence safety of attenuated mumps virus strains in monkeys
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