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avian infectious bronchitis in hong kong. 19705530632
[action of benzydamine on chickens infected by intranasal administration of avian infectious bronchitis virus. (preliminary note)]. 19705517452
an electron-microscope study of the trachea of the fowl infected with avian infectious bronchitis virus. 19705505021
[biochemical research on avian infectious bronchitis. behavior of cholesterol, urea and uric acid in the amnio-allantoid fluids of normal and infected embryonated eggs]. 20135496205
[on the demonstration of hemagglutinin of the virus of avian infectious bronchitis]. 20095496203
response of chicken vaccinated with live infectious bronchitis virus vaccine to killed newcastle disease vaccine. 19705471578
[absence of cross immunity due respectively to connecticut and massachusetts strains of fowl infectious bronchitis virus]. 19705466589
reference collection of strains of avian infectious bronchitis virus. 19705463723
large-quantity production of chicken embryo tracheal organ cultures and use in virus and mycoplasma studies.chicken tracheal organ cultures were made from embryos which were 19 to 20 days old. transversely cut rings of trachea were placed in screw-capped tissue-culture tubes with eagle's-n-2-hydroxyethylpiperazine-n'-2-ethanesulfonic acid (hepes) medium and incubated in roller drums. the method had advantages over other organ culture systems in that these cultures were prepared in numbers similar to conventional tissue cultures, ciliary activity was quickly and accurately evaluated, and contamination ...19705463183
studies on australian infectious bronchitis virus. iv. apparent farm-to-farm airborne transmission of infectious bronchitis virus. 19705461570
viral susceptibility range of the fathead minnow (pimephales promelas) poikilothermic cell line.the viral susceptibility range of a poikilothermic cell line derived from the fathead minnow (pimephales promelas) (fhm) to infection by a number of homoiothermic viruses representing most of the presently recognized viral groups and a member of the psittacosis-lymphogranuloma-trachoma group of agents was studied. all infectious agents, except poliovirus types 1 and 3, infectious bursal agent, and an avian infectious bronchitis virus (ibv) strain, readily multiplied in the fhm cell culture syste ...19705461163
chemical pathology of nephrosis induced by an infectious bronchitis virus. 19705434441
[observations and research on the immunizing effectiveness of an inactivated vaccine against avian infectious bronchitis]. 19695406594
mixed infection with infectious bronchitis virus and mycoplasma gallisepticum in a chicken flock. 19695392003
effects of avian infectious bronchitis virus (ibv) on tracheal organ cultures. 19695391213
avian infectious bronchitis: the protection afforded by an inactivated virus vaccine. 19695388980
direct complement fixation test with avian infectious bronchitis virus in chicken.the direct complement fixation test was performed to follow the antibody response in chickens infected with avian infectious bronchitis virus. concentrated allantoic fluid (4 units) was used as an antigen and allowed to react with serially diluted antiserum in the presence of two complete units of guinea-pig complement for 3 hr. at 4 degrees c. and (1/2) hr. at 37 degrees c. before the addition of sensitized cells. serum was unheated and used either fresh or within one month of storage at -30 de ...19705270203
isolation and characteristics of avian nephrosis-inducing infectious bronchitis virus (coronavirus). 19715169458
isolation of infectious bronchitis virus from newborn chicks and dead-in-shell embryos. 19715168509
[veterinary and sanitary precautions against avian infectious bronchitis]. 19715166282
characterization of a new infectious bronchitis virus isolate. ii. some chemical and physical properties of clark 333. 19715107294
characteristics of an isolate of infectious bronchitis virus from chickens in florida. 19715104155
the site of replication of infectious bronchitis virus in the oviduct of experimentally infected hens. 19715098189
recovery of infectious bronchitis virus from eggs and chicks produced by experimentally inoculated hens. 19715091661
immune response in chickens to infectious bronchitis virus, strain 33. 3. beta-propiolactone-inactivated and live-virus vaccines compared by statistical methods. 19725079874
some characteristics of isolates of infectious bronchitis virus from commercial vaccines. 19725079872
attachment of avian infectious bronchitis virus to chicken embryo kidney cells. 19725066126
the effect of parameter selection in evaluation of infectious bronchitis virus vaccine. ii. effect of single vs. serial passage of tracheal swab material, and of the positive-negative vs. a point-value system in reporting results. 19725038655
the effect of parameter selection in evaluation of infectious bronchitis virus vaccine. i. evaluation of the connecticut strain by virus recovery tests. 19725038646
chemical characterization of avian infectious bronchitis virus receptor sites. 19725023057
the immune response to infectious bronchitis virus determined by respiratory signs, virus infection, and histopathological lesions. 19725016523
the use of the gel diffusion precipitin technique with avian infectious bronchitis nephritis virus. 19715001539
antigenic variation in strains of avian infectious bronchitis virus. 19714999979
[preliminary study on the diagnosis of avian infectious bronchitis by fluorescent antibody technic]. 19714997553
antibody-neutralized avian infectious bronchitis virus in chicken embryo kidney cells: entry and degradation. 19704992536
a soluble antigen of infectious bronchitis virus. 19704992074
purification and further characterization of an "ibv-like" virus (coronavirus). 19704991400
isolation from man of "avian infectious bronchitis virus-like" viruses (coronaviruses) similar to 229e virus, with some epidemiological observations. 19694976345
morphogenosis of avian infectious bronchitis virus in chicken embryo fibroblasts. 19684974938
antigenic characterization of infectious bronchitis virus. 19684967045
titration of avian infectious bronchitis virus in the tissues of experimentally infected chickens. 19674966928
neurtralising antibodies for avian infectious bronchitis virus in queensland poultry flocks. 19684966718
serologic differences between the beaudette and massachusetts strains of infectious bronchitis virus. 19634966446
infectious bronchitis virus interference with growth of newcastle disease virus. i. study of interference in chicken embryos. 19634966225
immunofluorescence of avian infectious bronchitis virus in primary chicken embryo kidney, liver, lung, and fibroblast cell cultures. 19664966187
infectious bronchitis virus interference with newcastle disease virus in monolayers of chicken kidney cells. 19674964019
synergism between avian infectious bronchitis virus and haemophilus gallinarum. 19674962423
thermal stability of infectious bronchitis virus in the presence of salt solutions. 19674962422
response of chickens inoculated with infectious bronchitis virus to temperature and humidity environments. 19674961988
a comparative study of single and multiple respiratory infections in the chicken: multiple infections (with mycoplasma gallisepticum, newcastle disease virus, and infectious bronchitis virus). 19664961637
avian infectious bronchitis--virus distribution in tissues of chicks. 19664960464
genetic differences among chicken embryos in response to inoculation with an isolate of infectious bronchitis virus. 19664960463
[the infectious bronchitis virus in chickens and methods of diagnosis of the disease]. 19654959998
[study in the chick embryo of the phenomenon of interference between the massachusetts and connecticut types of infectious bronchitis virus]. 19654956371
[method of growth in the chick embryo of the massachusetts and connecticut types of avian infectious bronchitis virus]. 19654955842
immunofluorescence of avian infectious bronchitis virus and newcastle disease virus in singly and dually infected cell cultures. 19714945993
immune response in chickens to infectious bronchitis virus, strain 33. ii. response to virus propagated in chicken embryo kidney cells. 19714945989
immune response in chickens to infectious bronchitis virus, strain 33. i. response to beta-propiolactone-inactivated virus. 19714945988
characterization of a new infectious bronchitis virus isolate. i. serological and pathogenicity studies of clark 333. 19714938694
measurement of antigenic and pathogenic variability of infectious bronchitis virus strains by trachea. 19714932186
[detection of the virus of avian infectious bronchitis by the fluorescent antibody technic]. 19704927882
criteria for examining the immune response to infectious bronchitis virus. 19714926598
adaptation and propagation of avian infectious bronchitis virus in embryonic turkey kidney cell cultures. 19714926595
avian infectious bronchitis. 19704922142
differentiation and detection of infectious bronchitis virus subtypes by immunofluorescence. 19704907606
differentiation of avian infectious bronchitis virus serotypes by immunofluorescence. 19694902777
intracellular avian infectious bronchitis virus: detection by fluorescent antibody techniques in nonavian kidney cell cultures. 19694897893
preparation and immunological response to a new mixed vaccine composed of inactivated newcastle disease virus, inactivated infectious bronchitis virus, and inactivated hemophilus gallinarum. 19744853743
differentiation of two serotypes of infectious bronchitis virus by the macrophage migration-inhibition test. 19744828582
morphological variation among avian infectious bronchitis virus strains. 19744819986
the inhibition of infectious bronchitis virus multiplication by celo virus in the fowl embryo. 19734792016
neutralizing antibody in nasal secretions of chickens following administration of avian infectious bronchitis virus. 19734772938
a new serotype of infectious bronchitis virus responsible for respiratory disease in arkansas broiler flocks. 19734748341
a direct complement fixation test for infectious bronchitis virus using heat-inactivated chicken sera. 19734722792
plaque formation by infectious bronchitis virus in chicken embryo kidney cell cultures. 19734712808
the effectiveness of immunization to newcastle disease, avian infectious bronchitis and avian infectious coryza with inactivated combined vaccines. 19724668500
[studies on antigenic and immunologic properties of the infectious bronchitis virus in the ussr]. 19724654924
egg quality and production following infectious bronchitis virus exposure at one day old. 19724643125
avian infectious bronchitis virus: serologic response of chickens to seven beta-propiolactone-inactivated strains. 19724640181
replication of avian infectious bronchitis virus in african green monkey kidney cell line vero. 19724627930
stabilizing effect of magnesium sulfate on avian infectious bronchitis virus propagated in chicken embryo kidney cells.the beaudette strain of avian infectious bronchitis virus propagated in chicken embryo kidney cells is stabilized by exposure to 1 m mgso(4) at 50 c for 80 min, at ph values ranging from 4 to 10.19724622823
use of allantoic cells for the detection of avian infectious bronchitis virus. 19724622264
infectious bronchitis and mixed infections of mycoplasma synoviae and escherichia coli in gnotobiotic chickens. i. synergistic role in the airsacculitis syndrome.the synergistic role of infectious bronchitis virus (ibv) and mixed infections of mycoplasma synoviae (ms) and escherichia coli (ec) in the airsacculitis syndrome was evaluated in gnotobiotic chickens. relative air sac lesion score indexes, in descending order of severity, from various combinations of organisms were: 9.5-ibv, ms, ec; 6.8-ibv, ec; 4.5-ibv, ms; 2.7-ibv; and 0.5-ms, ec. infectious bronchitis virus caused a mild fibrinous inflammation. m. synoviae combined with ibv increased heterop ...19744609905
serological comparisons of strains of infectious bronchitis virus using plaque-purified isolants. 19744597565
the pathogenesis of virulent and avirulent avian infectious bronchitis virus. 19734573193
pathogenicity of two embryo-passage levels of avian infectious bronchitis virus for the oviduct of young chickens of various ages. 19724565461
persistence of virus in the tissues and development of the oviduct in the fowl following infection at day old with infectious bronchitis virus. 19724552937
pathogenicity of four serotypes of avian infectious bronchitis virus for the oviduct of young chickens of various ages. 19724552675
the histopathology of an interstitial nephritis in the fowl produced experimentally with infectious bronchitis virus. 19744452936
nephrosis in laying chickens caused by massachusetts-type infectious bronchitis virus. 19744450393
interferon induction by different strains of infectious bronchitis virus. 19744423767
the effect of the suppression of circulating antibody on resistance to the australian avian infectious bronchitis virus. 19744419569
infectious bronchitis in laying fowls. 19684378174
isolation of avian viruses from the eggs of raillietina tetragona and ascaridia galli. 19744376077
local immunity to avian infectious bronchitis in tracheal organ culture. 19744368876
research note--avian encephalitis virus as a chicken kidney cell-culture contaminant and its effect on the growth of infectious bronchitis virus. 19734355965
the replication of infectious bronchitis virus in fowl trachea. 19724344144
avian adenovirus alone or followed by infectious bronchitis virus in laying hens. 19724339282
buoyant density of hemagglutinating encephalomyelitis virus of swine: comparison with avian infectious bronchitis virus. 19724339084
[enzymatic studies of avian infectious bronchitis. behavior of some enzymes (got, gpt, aldolase, ldh, fac, fal, lap and sdh) in the amino-allantoid fluids of normal and infected embryonated eggs]. 20164322161
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