Publications
| Title | Abstract | Year(sorted descending) Filter | PMID Filter |
|---|
| swine fever: influence of passive immunity on pig immune response following vaccination with a live virus vaccine (thiverval strain). | the influence of passive immunity on the immune response to swine fever virus (s.f.v.) was investigated in pigs injected with variable amounts of s.f.v. antibodies instead of piglets from immune sows. the passive immunity suppresses the primary serum antibody response normally observed after vaccination with the thiverval strain of s.f.v. this inhibition is either partial or complete depending on the amount of injected antibodies. whatsoever the passive immunity intensity, a priming occurred (ev ... | 1976 | 1028380 |
| [studies of the carrier state and excretion of the pathogenic plague virus in vaccinated swine]. | investigations were carried out on the presence of carriers and the excretion of the virulent swine fever virus in pigs vaccinated with the lapinized vaccine strain k. on the 15th, 25th, and 35th day following injection with the virulent virus a pig was killed each time and material was taken for morphologic studies and immunofluorescence microscopy. the results of the investigations were negative except for two pigs the cerebrum of which showed perivascular, slightly to moderately expressed lym ... | 1976 | 1030872 |
| plaque formation by african swine fever virus in chick embryo fibroblasts in the absence of co2 atmosphere. | a plaque assay method using asfv previously adapted to growth in chick embryo fibroblasts is described. chick embryo fibroblast monolayers under bactoagar or methylcellulose have been employed using cysteine, arginine, deae-dextran and hepes as additives. plaque production was optimal under methylcellulose. hepes rendered the plaques more clear when used with the overlay. arginine enhances plaque formation with bactoagar, and deae-dextran doubles the plaque size. the growth curve of asfv in chic ... | 1976 | 1033755 |
| [comparison of 2 in vitro methods of titration of antibodies neutralizing the classic swine plague virus]. | swine fever virus neutralization have been studied by the following method: variable plaque forming units numbers are mixed with a predetermined serum dilution. infectivity is measured before (vo) and after (vr) neutralization reaction. neutralization index (n.i. = logvo/v) represent the difference between the two titers. it had been demonstrated that mass law is a good approximation to describe swine fever virus neutralization. so the most useful form in which to express the relation between n. ... | 1976 | 1036215 |
| reverse plaque formation by hog cholera virus of the gpe-strain inducing heterologous interference. | a simple and rapid plaque procedure was developed for the assay of hog cholera virus (hcv) of a particular strain, gpe-, based on its intrinsic interference with vesicular stomatitis virus (vsv) on the primary swine testicle cells and on an established swine kidney cell line; the procedure is called the reverse plaque formation (rpf) method. the plaques were produced as colonies of hcv-infected cells which were vsv-sensitive, disintegrated cell sheet. these plaques became visible after 15 to 20 ... | 1976 | 61176 |
| [effect of heating on the survival of swine fever virus in pasteurised canned ham from experimentally infected animals (author's transl)]. | experimentally infected pigs were slaughtered during viraemia. the hams were prepared according to the industrial process and packed in tins with an average content of 5.6 kg. the tins were then heated in the course of which temperatures in the centre of the hams reached maximum values varying between 62.5 and 68.5 degrees c. within 24 hours of heating the centre of the ham was homogenised and one of two piglets were inoculated with 40 to 80 ml of a 25 per cent suspension. virus was recovered fr ... | 1976 | 827818 |
| [a new inactivated vaccine against classical swine fever]. | authors used a wild strain of classical swine fever virus alfort a19, grown on pk15 cell culture. virus is concentrated by ultrafiltration technique, inactivated with glycidaldehyde and then mixed with an oil adjuvant. results have brought into evidence the absolute innocuousness of this vaccine and animals given 2 doses of 2.5 ml or 1 dose of 5 ml were resistant to a challenge 2 months after vaccination. protection lasts one year, at least. | 1976 | 828543 |
| [experiments to determine the immunizing dosages in a single vaccinal dose of dried, lapinized k vaccine against swine plague]. | investigated was the amount of the immunizing doses per one vaccinal pig dose of five operative numbers of the lapinized k vaccine against swine fever. for this purpose pigs were immunized with 100, 200, 300, 400, and 500 fold dilutions of the vaccinal dose. a couple of weeks later the pigs were infected with 10(6)ld50 each of a pathogenic swine fever virus. it was found that the immunizing doses for the individual operative numbers of the vaccine vary in number from 100 to 400 in one vaccinal d ... | 1976 | 1258353 |
| muscidae (diptera): experimental vectors of hog cholera virus. | 1976 | 1263216 | |
| [attempts to purify strain k of the virus of classical swine plague]. | in the treatment of spleens and lumph nodes of rabbits infected with strain k, with the use of freon 113 the virus was freed from proteins up to 92-96 per cent. the infective power of the purified virus proved equal to that of the initial non-purified virus proved equal to that of the initial non-purified virus, and this points to the full extraction of the virus itself. the antigenic properties of the purified virus were demonstrated through agar gel precipitation with normal and hyperimmune se ... | 1975 | 814700 |
| [effect of passive immunity on subsequent vaccination against swine fever]. | studied was the effect of a serum paratyph and aujeszky gammaglobulin injected 10, 15, and 20 days prior to the crystal-violet and the lapinized vaccine. if the animals were infected with a pathogenic swine fever virus 10 to 15 days after their treatment with serum at the rate of 0.5 cu. cm per kg, part of them died, and the remaining contracted the disease showing a protracted course. the control vaccination on the 20th day after the animals were injected with serum led to the death of all of t ... | 1975 | 53938 |
| swine buffy coat culture: an aid to the laboratory diagnosis of hog cholera. | a 2-step technique for the isolation of hog cholera (hc) virus consisting of an initial culture on buffy coat (bc) cultures and subinoculation to a pig kidney cell line (pk-15) was described. by this technique, hc virus was confirmed in specimens from 65 herds in which the conventional cell culture isolation technique failed. the herds were located in 20 states and puerto rico. specimens from 29 of the 65 herds were inoculated into specific-pathogen-free (spf) pigs. hog cholera virus was recover ... | 1975 | 163064 |
| transmission of hog hog cholera virus by mosquitoes. | mosquitoes trapped during an epizootic of hog cholera (hc) in maryland in 1969 were prepared into 40 pools which were inoculated in pigs. hog cholera virus was confirmed in pigs inoculated with 8 of 40 pools of mosquitoes. generally, the pigs contracting hc developed chronic infections with persistent viremia that lasted 30 or more days. two pigs seemed healthy when euthatized 62 and 80 days after inoculation, yet viremia of high titer was detected in each. experimental studies were performed wi ... | 1975 | 237444 |
| [serological identification and behavior of the highly virulent swine fever virus in immunoelectrophoresis]. | 1975 | 1136613 | |
| the use of a microtitration technique for the routine assay of african swine fever virus. brief report. | 1975 | 1168046 | |
| the basis of arbovirus classification. | the biologically defined set of arboviruses contains well over 300 separate viruses which have been subdivided into some 40 serological groups on the basis of antigenic cross-reactivity. more than three quarters of all arboviruses can now bw placed into one of the following five major taxonomic genera based upon the fundamental properties of the virion: alphavirus, flavivirus, orbivirus, rhadovirus, bunyavirus. there are 20 alphaviruses, representing serological group a, and 57 flaviviruses in s ... | 1975 | 1207193 |
| occurrence of contaminating viruses in various swine fever virus strains. ii. studies on gillespie's cytopathic type-a strain and on other strains. | 1975 | 1233873 | |
| stabilization of hog cholera virus by dimethyl sulfoxide. | the stability of hog cholera virus through five freeze-thaw cycles in the presence and absence of dimethyl sulfoxide was studied. in the absence of dimethyl sulfoxide the hog cholera virus titer was reduced 52% to 91% following successive freezing and thawing cycles. however, when dimethyl sulfoxide was added to the viral suspension the virus titer appeared to remain the same after the same number of freezing and thawing cycles. | 1975 | 1236769 |
| ultrastructural study of african swine fever virus replication in cultures of swine bone marrow cells. | cultures from pig bone marrow cells were infected with asfv and the replication cycle was studied. in the cytoplasmic replication areas there are a differentiation of membrane segments. some of them are polygonal, which give rise to virus particles. an over production of viral coded materials, including non-polygonal membranes seems to be an important feature of the replicative cycle of asfv in this cell system. viruses are released enveloped with a cellular membrane. paracrystalline arrays of v ... | 1975 | 1239040 |
| [viability of the strein k hog cholera virus in the organism of swine]. | 1975 | 1239847 | |
| [antibody formation in swine vaccinated with a lapinized k-vaccine and serum against hog cholera]. | immunized were experimentally a total of 10 pigs with 2 cu. cm lapinized k vaccine and 10 cu. cm swine fever serum each. reimmunization was performed a month later using only vaccine. after three and a half months the experimental pigs were included into the group of pigs producing serum against swine fever that were preliminary simultaneously immunized against hog cholera by the classical method. swine fever antibodies in the serum of the experimental pigs showed a concentration that was equal ... | 1975 | 1239855 |
| [immunological reactivity of suckling pigs born to sows immunized against the lapinized k vaccine]. | the lapinized k vaccine was used to immunize 25 five-day-old pigs and 27 ten-day-old pigs. a group of 10 pigs were also included in the experiment as controls. all animals originated from eight sows treated with a lapinized k vaccine on the 70th day of pregnancy. on the 14th day following vaccination part of the pigs of the two test groups were revaccinated. three months later half of the immunized pigs were infected with a pathogenic swine fever virus. the remaining animals were infected then i ... | 1975 | 1241625 |
| immunofluorescence plaque assay for african swine fever virus. | suitably diluted cell culture adapted african swine fever virus preparations were inoculated on vero cell monolayers and grown on coverslips. gum tragacanth was used as an overlay. after three days incubation at 37 degrees c the infected cultures were fixed with acetone and stained with fluorescent antibody conjugate. fluorescing plaques consisted of 20-30 infected cells. three statistical criteria for a quantitatively reliable assay were met: the poisson distribution for plaque counts, linearit ... | 1974 | 4279763 |
| protein kinase activity in african swine fever virus. | 1974 | 4365182 | |
| sexual transmission of african swine fever virus in the tick, ornithodoros moubata porcinus, walton. | 1974 | 4417657 | |
| african swine fever virus. pathogenesis. | 1974 | 4418259 | |
| transmission of hog cholera virus by flies: recovery of virus from flies following exposure to infective blood. | 1974 | 4534764 | |
| [virus isolation from the blood and organs of rabbits infected with lapinized swine fever virus]. | 1974 | 4855898 | |
| [serological types of the classical swine fever virus]. | 1973 | 4595070 | |
| effects of some disinfectants on african swine fever virus. | ten commercially available disinfectants were tested at high ph in 2% sodium hydroxide and low ph in 2% acetic acid as inactivants for african swine fever (asf) in a protein-rich blood-spleen homogenate. as assayed in leukocyte cultures, sodium hydroxide and acetic acid, sodium meta silicate and roccal did not inactivate asf virus in 1 hr at 22 to 25 c. some viricidal activity as assayed in leukocyte cultures was found with weladol, triton x-100 amphyl, phisohex, sodium dodecyl sulfate, lph, env ... | 1973 | 4631432 |
| [effect of attenuated hog cholera virus vaccine from the inoculation virus strain "c" on pregnant sows and their progeny]. | 1973 | 4735958 | |
| studies on the pathogenesis of hog cholera. i. demonstration of hog cholera virus subsequent to oral exposure. | 1973 | 4751661 | |
| inhibition of hog cholera virus by acriflavine. a property shared with bovine virus diarrhoea virus. brief report. | 1973 | 4356773 | |
| bovine viral diarrhea virus in swine: neutralizing antibody in naturally and experimentally infected swine. | neutralizing antibodies against bovine viral diarrhea virus (bvdv) were detected in sera of iowa farm sows, their piglets derived by hysterectomy and in specific-pathogen-free (spf) pigs in a closed herd. no antibodies against bvdv were detected in sera of 134 fetal pigs from 67 sows in an iowa slaughter-house. neutralizing antibodies against bvdv or hog cholera virus, produced experimentally in spf pigs, were demonstrated to be due to different antigens rather than to a common antigen, although ... | 1973 | 4265558 |
| effects of some disinfectants on african swine fever virus. | [this corrects the article on p. 115 in vol. 25.]. | 1973 | 16349959 |
| hog cholera virus yields in swine kidney cells fused with beta-propiolactone-inactivated sendai virus. | 1972 | 4333634 | |
| the localization of african swine fever virus in the tick ornithodoros moubata porcinus. | 1972 | 4564455 | |
| increased deoxyribonucleic acid polymerase activity in african swine fever virus-infected culture cells. brief report. | 1972 | 4673394 | |
| transmission of hog cholera virus by horseflies (tabanidae: diptera). | 1972 | 4401263 | |
| mechanism of enhancement of newcastle disease virus growth in cultured cells by co-infecting hog cholera virus. | 1971 | 5000803 | |
| enhancement of rubella virus replication in swine testicle cells by co-infection with hog cholera virus. | 1971 | 5003257 | |
| antigenic differences in two hog cholera virus strains. | 1971 | 5115536 | |
| blood constituent changes associated with hog cholera virus infection of swine. | 1971 | 5115537 | |
| [use of modified live swine fever virus, prepared on tissue culture, for vaccination]. | 1971 | 5154371 | |
| inhibition by rifampin of african swine fever virus replication in tissue culture. | vaccinia virus and african swine fever virus are deoxyribonucleic acid viruses of cytoplasmic origin. the fact that rifampin inhibits the replication of the former virus led to an investigation of its effect on african swine fever virus. the virus used was cytopathogenic to a pk-15 cell line, hemadsorbing in pig leukocyte cultures and lethal to pigs. rifampin clearly inhibited the multiplication and cytopathogenicity of the virus in pk-15 cells. there was a 1- to 5-log reduction in virus titer d ... | 1971 | 5154875 |
| [studies of the properties of cold induced classical swine fever virus mutants. application to vaccination]. | 1971 | 5170509 | |
| effects of oxyamylose and polyacrylic acid on foot-and-mouth disease and hog cholera virus infections. | 1971 | 5544281 | |
| a mutant of hog cholera virus in the virus-carrier cell cultivated at a lower temperature. | 1971 | 5565404 | |
| [action of prednisolone on two lapinized hog cholera virus strains]. | 1971 | 5580357 | |
| [detection of hog cholera virus using contrast immunofluorescence methods at various times during the course of infection]. | 1971 | 4932671 | |
| african swine fever virus. | 1971 | 4950035 | |
| [the reproduction of swine fever virus in a lymphocytic-phytocell-line and a line of monocytic cells]. | 1971 | 4400723 | |
| effects of oxyamylose and polyacrylic acid on foot-and-mouth disease and hog cholera virus infections. | two interferon-inducing polycarboxylates were tested for antiviral activity on foot-and-mouth disease (fmd) virus infections in mice, guinea pigs, and swine. polyacrylic acid, given intraperitoneally, had a protective effect on infection by fmd virus administered in the peritoneal cavity of mice and in the foot pad of guinea pigs. chlorite-oxidized oxyamylose (coam) was effective in mice at a dosage of 2 mg/kg. swine were not protected against naturally transmitted fmd by 120 mg/kg of coam nor b ... | 1971 | 4323649 |
| [electron microscopy for the detection of swine fever virus in lymph node cells of infected pigs]. | 1971 | 4330769 | |
| studies on the substructure of togaviruses. ii. analysis of equine arteritis, rubella, bovine viral diarrhea, and hog cholera viruses. | 1971 | 4107033 | |
| hypergammaglobulinemia in swine infected with african swine fever virus. | 1970 | 4192541 | |
| [the heterogeneity of serum gamma globulin of the pig after infection with highly virulent hog-cholera virus]. | 1970 | 4102753 | |
| [effect of hog cholera virus on the reproduction of smallpox vaccine and newcastle disease viruses]. | 1970 | 4317200 | |
| a mutant of hog cholera virus inducing interference in swine testicle cell cultures. | 1970 | 4319263 | |
| persistent infection of an established porcine kidney celline with selected strains of hog cholera virus. | 1970 | 4923317 | |
| [multiplication and spread of hog cholera virus, strain munich-1, in pk-15 cell cultures]. | 1970 | 4932940 | |
| [immunohistological demonstration of hog cholera virus using a contrast immunofluorescence method]. | 1970 | 4934006 | |
| plaque production by hog cholera virus. | 1970 | 4925754 | |
| [detection of antibodies against hog cholera virus, chinese strain. i. laboratory tests]. | 1970 | 4932470 | |
| the excretion of two virulent strains of african swine fever virus by domestic pigs. | daily observations were made on the excretion of african swine fever (asf) virus by pigs infected intranasally or by contact. two strains of virus having mean death times of approximately 3 and 6 days were used, the latter being recently isolated from a warthog.first excretion usually occurred by the nasopharyngeal route, as early as 1 or 2 days before the onset of fever in many cases. the titres of pharyngeal and nasal swabs rose rapidly to reach mean levels of about 10(4)-10(5) had 50 at 48-72 ... | 1970 | 5276336 |
| [study with electron microscope of classical hog cholera virus in ultra-thin sections of cells infected in vitro]. | 1970 | 4989920 | |
| serological behaviour of isolated african swine fever virus. brief report. | 1970 | 4992470 | |
| size determination of hog cholera virus by means of gamma rays inactivation. | 1970 | 5466128 | |
| experimental infection of the argasid tick, ornithodoros moubata porcinus, with african swine fever virus. | 1970 | 5475061 | |
| altered thymidine kinase activity in culture cells inoculated with african swine fever virus. | 1970 | 5528337 | |
| deoxyribonucleic acid synthesis in cultured porcine kidney cells infected with hog cholera virus. | 1970 | 5528340 | |
| transovarial infection with african swine fever virus in the argasid tick, ornithodoros moubata porcinus, walton. | 1970 | 5532269 | |
| hog cholera virus infection in tracheal organ cultures. | 1970 | 5533701 | |
| effect of hydroxyurea on the development of african swine fever virus. | 1969 | 5776172 | |
| african swine fever virus in ticks (ornithodoros moubata, murray) collected from animal burrows in tanzania. | 1969 | 5813153 | |
| attenuation of hog cholera virus carried by a pig kidney cell line: further comparison of virulence of the virus obtained at different stages of cell cultivation. | 1969 | 5815923 | |
| porcine kidney cell line persistently contaminated with avirulent swine fever virus. | 1969 | 5816816 | |
| role of interferon in enhanced replication of newcastle disease virus in swine cells infected with hog cholera virus. | 1969 | 5307404 | |
| lesions in swine inoculated with attenuated hog cholera viruses. | 1969 | 5346593 | |
| epizootiology of african swine fever virus in warthogs. | 1969 | 5386390 | |
| [growing hog cholera virus in a culture of lamb testicle cells]. | 1969 | 5392271 | |
| [effect of "rovac" lapinized swine fever virus on animals infected or immunized with swine erysipelas bacteria]. | 1969 | 5393339 | |
| host specificity and serologic disparity of african swine fever virus and amphibian polyhedral cytoplasmic viruses. | 1969 | 4973865 | |
| attenuation of the hog cholera virus by continuous cell-virus propagation. 3. growth interference of newcastle disease virus by attenuated hog cholera virus and its application to virus titration and the neutralization test. | 1969 | 4977295 | |
| evaluation of the fluorescent antibody--cell culture test for detection and titration of hog cholera virus. | 1969 | 4977314 | |
| pathogenesis of hog cholera virus infection in experimentally inoculated swine. | 1969 | 4977315 | |
| purification and some physical properties of hog cholera virus. | 1969 | 4977316 | |
| replication of hog cholera virus in cell culture. | 1969 | 4980998 | |
| immunofluorescent investigations on the swine fever virus. | 1969 | 4985424 | |
| the filter paper disc technique for the detection of antibodies against hog cholera virus. | 1969 | 4925737 | |
| the effects of in utero viral infection on embryonic, fetal, and neonatal survival: a comparison of smedi (porcine picorna) viruses with hog cholera vaccinal virus. | smedi and hog cholera viruses were shown to have marked effects upon the survival of the embryo (from conception to 30 days of gestation), the fetus (from 30 days of gestation until birth), and the neonatal pig (from birth until five days after birth). embryonic infection was characterized by death and absorption of the embryo and in some instances the return to estrus after an irregular estrous cycle. embryonic infection also may have been responsible for the development of some abnormal pigs. ... | 1969 | 4243029 |
| the purification and concentration of hog cholear virus with electron micrographs (a preliminary note). | cell-cultured hog cholera virus was partially purified by chromatography on pulverized magnetic ferric oxide. infectivity yields of 50 to 100% were obtained with a 90 to 95% reduction in extraneous organic nitrogen. concentration and further purification of infectious virus were achieved by rate-zonal and isopycnic ultra-centrifugations in buffered cesium chloride. density determinations obtained from the isopycnic experiments indicate a buoyant density of 1.14-1.15 gm/ml for the strain of virus ... | 1968 | 4233829 |
| immunofluorescence and inclusion bodies in circulating leukocytes of pigs infected with african swine fever virus. | 1968 | 4180037 | |
| segregation of a nonhemadsorbing african swine fever virus in tissue culture. | 1968 | 4297717 | |
| synthesis and cytopathogenesis of african swine fever virus in procine cell cultures. | 1968 | 4171074 | |
| ultrastructure of lymphocystis virus. | lymphocystis virus obtained from bluegills (lepomis macrochirus) was cultured in the permanent bluegill cell line bf-2 and examined by electron microscopy in ultrathin sections of cell cultures and in negative-contrast preparations from cells and from centrifuged culture medium. according to negative-contrast preparations, the icosahedral virions have an overall diameter close to but not exceeding 300 mmu. delicate filaments seem to issue from the vertices. in collapsed virions, an ordered array ... | 1968 | 4986903 |
| cytogenetic alterations in swine kidney cells persistently infected with hog cholera virus and propagated with and without antiserum in the medium. | 1968 | 4965860 | |
| [position of african swine fever virus as a systematic virus]. | 1968 | 4968760 | |
| the growth of a virulent strain of african swine fever virus in domestic pigs. | 1968 | 5239770 | |
| [comparative studies with foreign hog cholera virus strains]. | 1968 | 4971938 |