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canine distemper virus clearance in chronic inflammatory demyelination.the distribution of canine distemper virus (cdv) antigen was examined in the brains of 14 dogs with chronic nervous distemper using a monoclonal antibody against a major viral protein. in ten of these dogs, neutralizing anti-cdv antibody titers were determined in serum and unconcentrated cerebrospinal fluid (csf). in 19% of the inflammatory demyelinating lesions, large amounts of cdv antigen were found; in 34% of these lesions only residual traces of virus were seen and in almost half of the les ...19863825508
canine distemper virus: in vivo virulence of in vitro-passaged persistent virus strains.groups of ferrets were inoculated intraperitoneally with cell lysates or equivalent doses of whole cells from 9 different cell lines persistently infected with canine distemper virus. viral persistence in these cell lines was characterized by noncytolytic infection and restricted release of cell-free infectious virus. in vivo replication competency of the various viruses in ferrets ranged from nil to virulent and did not correlate with in vitro titers of inocula. ferret virulence (cell lysates o ...19873826861
[possible involvement of the canine distemper virus in the epidemiology of multiple sclerosis]. 19853832280
sequence homology within the morbilliviruses.double-stranded cdna synthesized from total polyadenylate-containing mrna extracted from monkey kidney cells infected with canine distemper virus (cdv) was cloned into the psti site of escherichia coli plasmid pbr322. clones containing cdv dna were identified by hybridization to a cdv-specific 32p-labeled cdna. a cdna clone containing an insert 1,700 base pairs (cdv 364) has been identified as the reverse transcript of the mrna coding for the nucleocapsid protein. the size of the mrna species co ...19853838193
cloning and characterization of dna complementary to the canine distemper virus mrna encoding matrix, phosphoprotein, and nucleocapsid protein.double-stranded cdna synthesized from total polyadenylate-containing mrna, extracted from monkey kidney cells infected with canine distemper virus (cdv), has been cloned into the psti site of escherichia coli plasmid pbr322. clones containing canine distemper virus dna were identified by hybridization to a canine distemper virus-specific, 32p-labeled cdna. four specific clones containing different classes of sequences have been identified. the cloned plasmids contain inserts of 800 (clone 44-80) ...19853838194
cdna cloning of the messenger rnas of five genes of canine distemper virus.messenger rnas from vero cells infected with the onderstepoort strain of canine distemper virus (cdv) were cloned into the psti site of plasmid pat153. total polyadenylated rna was used and resulting clones were screened with 32p-labelled cdna probes from infected and mock-infected cells. the virus specificity of the clones was proven by northern blot hybridization and by ability to select radioactive virus mrnas labelled in vivo in the presence of actinomycin d. clones from the n, p and m genes ...19853838337
[distemper in stone martens (martes foina, erxl.) in schleswig-holstein. a contribution to the epidemiology of distemper]. 19853891298
canine distemper virus does not infect oligodendrocytes in vitro.dissociated canine brain cell cultures were infected with virulent canine distemper virus (cdv). double immunofluorescent labelling was done to simultaneously demonstrate viral antigen and specific glial cell markers. virus containing oligodendrocytes were not found at any stage of the infection. a certain proportion of the infected cells were shown to be astrocytes. it was concluded that cdv has no obvious tropism for oligodendrocytes which could explain the mechanism of demyelination in distem ...19853897461
studies on the intrathecal humoral immune response in canine distemper encephalitis.albumin and igg were quantitated in paired cerebrospinal fluid (csf) and serum samples from dogs with demyelinating canine distemper virus (cdv) infection by means of rocket immunoelectrophoresis. the igg index as indicator for intrathecal immunoglobulin synthesis was normal in animals with non-inflammatory demyelinating lesions and elevated in dogs with inflammatory myelin lesions. specific antibodies against cdv and myelin were quantitated in csf and serum from 8 dogs with an elevated igg inde ...19863944250
tyzzer's disease as a complication of canine distemper in a raccoon.intercurrent canine distemper and tyzzer's disease were diagnosed in a mature raccoon (procyon lotor) submitted for necropsy. clinical, gross and microscopic findings characteristic of canine distemper virus (cdv), included ataxia, dyspnea, suppurative conjunctivitis, interstitial pneumonitis and generalized lymphocytolysis. inclusion bodies typical of cdv infection were present in many epithelial tissues. acute multifocal hepatic necrosis and acute segmental necrotizing enteritis were attribute ...19863951062
requirement of methionine for the replication of canine distemper virus in vero cells.the replication of canine distemper virus (cdv) in vero cells was found to require certain amino acids such as arginine, methionine and valine. the deprivation of methionine caused the most marked reduction in virus yield. in cells cultured in medium deprived of methionine, the early processes of viral replication such as adsorption, penetration and uncoating of virus occurred at normal rates, but the syntheses of viral rna and protein were markedly reduced. the addition of s-adenosylmethionine ...19853968535
plaque identification of strand-forming canine distemper virus by staphylococcal protein a-mediated reverse passive haemadsorption.the r252 neurotropic isolate of canine distemper virus (cdv) produces cytopathic effects (cpe) dominated by strand formation rather than by the formation of multinucleate giant cells. the lack of well-defined cpe and consequent rapid spread of infection throughout the cell monolayer has hindered plaque purification of this virus by conventional methods. however, the use of an immunological detection system which utilizes binding of hyperimmune dog serum to virus-infected cells, followed by the i ...19853980664
declining incidence of multiple sclerosis in the orkney islands.the incidence of ms in the orkney islands has been updated from 1941 to september 21, 1983. since 1965, ms incidence rates have fallen significantly when compared with those for 1941 to 1964. alterations in age-specific prevalence, mean duration of illness, and mean age of the ms population are consistent with the decline in incidence of ms in recent years. although the reason for the decreasing incidence is uncertain, it is consistent with the hypothesis that ms may be caused by canine distempe ...19853982640
nonsuppurative meningoencephalomyelitis of unknown etiology in mink.a central nervous system disease of mink occurred in three unrelated fur farms in oregon in september, 1981. only kits four to five months old were affected. clinical signs consisted of posterior ataxia progressing to complete posterior paralysis with loss of motor control and sensation. complete or partial recovery occurred in approximately 1.5 months in most mink. microscopic lesions consisted of severe nonsuppurative meningoencephalitis and meningomyelitis with vacuolation of the white matter ...19853984155
the generation of small-plaque mutants during undiluted passage of canine distemper virus.a culture of vero cells persistently infected with undiluted-passage, large-plaque canine distemper virus was found to release small-plaque virus (spv). this suggested that spv could be generated by large-plaque virus (lpv). however, attempts to induce small-plaque mutants from lpv with 5-fluorouracil resulted in the production of virus that expressed a variable plaque type and induced a spectrum of disease in hamsters. in contrast, small-plaque mutants, shown to arise during undiluted passage o ...19853988485
thrombocytopenia associated with vaccination of a dog with a modified-live paramyxovirus vaccine.thrombocytopenia (10,000/mm3), with hematochezia and melena, appeared in a dog 8 days after it was given modified-live canine distemper, virus vaccine and persisted for approximately 5 days. clinical investigation discounted other possible causes of thrombocytopenia; the condition was considered to be associated with vaccination. the problem spontaneously resolved. the appearance of thrombocytopenia after modified-live canine distemper virus vaccination is not unknown and may assume a severe for ...19854008307
comparison of messenger rnas induced in cells infected with each member of the morbillivirus group.virus-specific mrnas radiolabelled with [32p]orthophosphate in the presence of actinomycin d were extracted from the cytoplasm of vero cells infected with each of the known morbilliviruses: measles virus, canine distemper virus, rinderpest virus, and peste des petits ruminants virus. when analysed on denaturing agarose-formaldehyde gels the major rna species from all viruses in the group were identical, except for canine distemper virus where one of the virus-specific mrnas (mrna 5), which proba ...19854013082
syncytia formation: an aid in the diagnosis of canine distemper encephalomyelitis.syncytia formation has been observed in response to experimental canine distemper virus (cdv) infection in specific-pathogen-free beagle dogs. multinucleated giant cells are most frequently found in white matter lesions of the brain and in the anterior uvea of the eye. lymph nodes and the lung are occasionally positive, while the leptomeninges will also rarely harbour syncytia. the mechanism of syncytia formation and their possible importance in the pathogenesis of the disease are briefly discus ...19854031136
epidemiological studies on multiple sclerosis. 19854033940
effects of canine distemper virus on natural killer cell activity in dogs.an in vitro 51cr-release assay was developed to detect the cytotoxicity of natural killer cells (nk) of canine peripheral blood mononuclear leukocytes to canine distemper virus (cdv) target cell membrane-bound antigens. leukocytes from 23 young (greater than or equal to 1 week of age), cdv-naive gnotobiotic dogs could discriminate between noninfected control and cdv-infected vero target cells. however, the amount of preinfection nk activity did not positively correlate with the ultimate outcome ...19854037509
spread and distribution of viral antigen in nervous canine distemper.canine distemper virus (cdv) antigen was demonstrated immunocytochemically in the central nervous system (cns) of 19 dogs killed from 16 to 170 days after infection. in the earliest lesions, infection of glial cells preceded demyelination, and the degree of myelin destruction correlated with the amount of viral antigen in the tissue. it was concluded that initial demyelination in distemper is directly viral-induced, but the nature of the infected glial cells remains uncertain. ependymal infectio ...19854050335
encephalitis induced in non-human primates by canine distemper virus adapted to human neural cells.the onderstepoort strain of canine distemper virus (cdv) adapted to human oligodendroglioma, neuroblastoma and glioblastoma cells, was intracerebrally inoculated into cynomolgus monkeys. all the three viruses caused periventricular encephalitis involving the brain stem. when the neurovirulence of these viruses were compared in terms of clinical signs and histopathological changes, the oligodendroglioma-adapted virus showed the neurovirulence of the highest degree inducing degeneration of axons a ...19854087464
[distemper epidemic in switzerland: epidemiology and anamnesis of vaccination]. 19854089589
ultrastructural features of canine distemper virus infection of the chorioallantoic membrane of the hen's egg. 19704099306
ultrastructural features of canine distemper virus infection in a dog kidney cell line. 19714107529
electron microscopic study of nuclear and nucleolar changes in cells infected with canine distemper virus (cdv). 19724112842
further studies on the immunologic relationships among measles, distemper, and rinderpest viruses. 19744139195
immunological study of the agent responsible for subacute sclerosing panencephalitis and biochemical characterization of measles antibody in subacute scelerosing panencephalitis. 19744141044
characterization of a long-term suspension culture of the llc-mk monkey kidney cell line. 19744143485
a post-vaccinal inclusion body encephalitis in dogs. 19744156617
canine distemper virus in ferret, dog and bovine kidney cell cultures. 19654160642
measles--canine distemper relationship. the effect of measles viruses and their influence on subsequent challenge with snyder hill distemper virus. 19664162470
immunologic evidence of measles virus as an etiologic agent in subacute sclerosing panencephalitis. 19684170004
[demonstration of distemper antigen in impression and section preparations using the fluorescent antibody technic]. 19674172561
comparative immunofluorescent studies on measles, canine distemper, and rinderpest viruses. immunofluorescence of measles, distemper, and rinderpest viruses. 19704195094
a microneutralization test for canine distemper virus. 19734201293
presence of neutralizing antibody to canine distemper virus in sera of patients with subacute sclerosing panencephalitis. 19734201376
ferritin-tagged antibody cross-reactions among rinderpest, canine distemper, and measles viruses. 19734201833
comparative distemper vaccine titrations in ferrets and minks. 19734208099
the nucleic acid type and effect of ph and hydroxylamine on canine distemper virus. 19684235309
[presence of rheumatoid factors in antibacterial horse immune sera]. 19654285268
[vaccination against canine distemper and infectious canine hepatitis. studies on efficacy and harmlessness]. 19654286204
inactivation of viruses by benzalkonium chloride.benzalkonium chloride (as roccal or zephiran) was found to inactivate influenza, measles, canine distemper, rabies, fowl laryngotracheitis, vaccinia, semliki forest, feline pneumonitis, meningopneumonitis, and herpes simplex viruses after 10 min of exposure at 30 c or at room temperature. poliovirus and encephalomyocarditis virus were not inactivated under the same conditions. it was concluded that all viruses tested were sensitive except members of the picorna group. the literature was reviewed ...19644288740
combined viral and bacterial antigens for canine vaccines. 19664291220
lack of interference in tissue culture between the viruses of canine distemper and infectious canine hepatitis as demonstrated by immunofluorescence. 19664291230
additional data on measles virus antibody and antigen in subacute sclerosing panencephalitis. 19684295223
potential antiviral agents. carbobenzoxy di- and tripeptides active against measles and herpes viruses. 19684295313
terrapene heart (th-1), a continuous cell line from the heart of the box turtle terrapene carolina. 19674295486
gas chromatography for detection of viral infections.gas chromatograms of sertim extracts of dogs inoculated with canine infectious hepatitis virus showed two metabolites not observed in uninoculated animals. chromatograms of extracts of tissue cultures of dog kidney, inoculated with viruses causing canine hepatitis, herpes, and distemper, and a parainfluenza virus similar to simian virus-5, each showed two or more different metabolites. two of the distinguishing products from cultures inoculated with hepatitis virus were chromatographically indis ...19684295947
canine distemper. 19674296185
characteristics of cell culture systems. viral flora of canine tissues. 19684305426
experience with an established cell line for veterinary vaccine production. 19684305440
gas chromatographic detection of in vitro and in vivo activities of certain canine viruses. 19694307537
isolation of viruses from primary dog cell cultures and the occurrence of viral antibody in donor animals. 19704313144
myxoviruses and multiple sclerosis. 19694313660
characterization of reptilian cell lines established at incubation temperatures of 23 to 36 degrees. 19704314147
viral antibody patterns in laboratory dogs with respiratory disease. 19704314338
presence of 2 different viral agents in brain cells of patients with subacute sclerosing panencephalitis. 19704316388
continuous-flow ultracentrifugation of canine distemper virus and infectious canine hepatitis virus.the use of a spinco l-4 zonal centrifuge with the b-xvi continuous-flow rotor for the purification of canine distemper and infectious canine hepatitis viruses is described. up to 68 liters of virus was processed at one time. infectious canine hepatitis virus was found to band at 39% sucrose and canine distemper virus banded between 32 and 48% sucrose. the virus was concentrated 10-fold, and the purity of the virus, as measured by protein concentration, was increased by 99%.19704320861
ultrastructural nature of canine distemper inclusions in the urinary bladder. 19704328310
the effect of a carbobenzoxy tripeptide on the biological activities of measles virus. 19714332971
inhibition of cell fusion by local anaesthetics and tranquillizers. 19724338830
inhibition of virus-induced cell fusion by local anaesthetics and phenothiazine tranquilizers. 19724340281
synopsis of vaccination procedures for dogs. 19734345835
development of hip dysplasia in dogs. 19734346059
demonstration by electron microscopy of viruses in cells found by light microscopy to contain inclusion bodies. 19724346228
viral infections and demyelinating diseases. 19734348989
karyological characterization of primary dog kidney cells in regard to acceptability of the cells as substrate of virus vaccines. 19724349818
the role of lysosomes in virus-induced cell fusion. 2. modification of the cell surface. 19714354974
the role of lysosomes in virus-induced cell fusion. 1. cytochemical studies. 19714354975
cell surface changes in virus-induced cell fusion. 2. changes in cell coat thickness. 19714355100
polypeptide composition of measles and canine distemper viruses. 19734355119
immunogenicity of canine distemper virus vaccine produced in a continuous cell line (llc-mk2 cells). 19734355770
recent advances in canine virus research. 19734356887
simultaneous administration of dichlorvos anthelmintic and modified live virus vaccines to puppies. 19744365765
the ultrastructure of cytoplasmic inclusions in circulating lymphocytes in canine distemper. 19744371726
serological indication of canine distemper and of infectious canine hepatitis in wolves (canis lupus l.) in northern canada. 19744373585
measles, canine distemper and respiratory syncytial virions and nucleocapsids. a comparative study of their structure, polypeptide and nucleic acid composition. 19744374646
canine respiratory virus infections. 19744375231
synergism between respiratory viruses and bacteria. 19684386279
experimental canine distemper virus-induced demyelination. 19744413368
isolation and comparative study of the nucleocapsids of measles and canine distemper viruses from infected cells. 19744414005
epizootic of canine distemper virus infection among urban raccoons and gray foxes. 19744436928
demyelinating activity of canine distemper virus isolates in gnotobiotic dogs. 19744443615
a comparison between virion rna of measles virus and some other paramyxoviruses. 19744444688
combined distemper-measles vaccine: advantage or disadvantage? 19744450411
the ultrastructure of inclusions in blood cells of dogs with distemper. 19744457569
the protecting capacity of neutralizing antibodies by distemper virus infections in mink. 19724509393
subacute sclerosing panencephalitis. transmission of the virus to calves and lambs. 19724563450
myelin-specific autoantibodies associated with central nervous system demyelination in canine distemper virus infection.sera from dogs with spontaneously occurring and experimentally produced canine distemper virus-associated demyelinating encephalitis were examined for antibodies to central nervous system myelin by the complement fixation and indirect immunofluorescent methods. complement-fixing immunoglobulin m antibodies and non-complement-fixing immunoglobulin g antibodies were found in 97% of the spontaneous cases. in comparison, only 28% of control sera contained these antibodies; furthermore, mean antibody ...19734584054
studies of old dog encephalitis. ii. electron microscopic and immunohistologic findings. 19734588526
canine distemper: current concepts in laboratory and clinical diagnosis. 19744593536
canine distemper virus in domesticated cats and pigs. 19744600776
evidence for transplacental transmission of canine distemper virus: two case reports. 19744607990
[demonstration of antibodies precipitating an antigen of carrés disease virus in the serum of patients with less]. 19724624805
[experimental study of several strains of the virus of carré's disease in dogs. identification and definition of variant strains]. 19724632950
enzyme activities associated with the demyelinating phase of canine distemper. i. beta-glucuronidase, acid and neutral proteinases. 19724643260
cell fusion by canine distemper virus-infected cells.av3 cells (continuous human amnion) infected with the onderstepoort strain of canine distemper virus produced cell fusion within 2 to 5 hr when added to av3 cell monolayers. an apparent requirement for intact, infected cells was demonstrated by showing that (i) frozen-and-thawed infected cells failed to induce fusion, (ii) infected cells frozen in the presence of glycerol retained their ability to induce fusion, (iii) infected cells subjected to swelling in hypotonic buffer and homogenization lo ...19724644630
affinity for retinal pigment epithelium by certain viruses. 19734684263
recovery of viruses in chronic cns disease. 19734718044
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