Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
|---|
| predicted membrane topology of the coronavirus protein e1. | the structure of the envelope protein e1 of two coronaviruses, mouse hepatitis virus strain a59 and infectious bronchitis virus, was analyzed by applying several theoretical methods to their amino acid sequence. the results of these analyses combined with earlier data on the orientation and protease sensitivity of e1 assembled in microsomal membranes lead to a topological model. according to this model, the protein is anchored in the lipid bilayer by three successive membrane-spanning helices pr ... | 1986 | 3008826 |
| envelope proteins of avian infectious bronchitis virus: purification and biological properties. | immunoadsorbents, made with monoclonal antibodies, were used to purify the spike and membrane proteins of infectious bronchitis virus (ibv). the purified proteins were inoculated into rabbits to produce antisera. the rabbit anti-spike sera neutralized the infectivity of the virus whereas the anti-membrane sera did not. ibv-infected chickens produced antibodies to both the spike and membrane proteins. both these antibodies were at their highest concentration about 9-11 days after inoculation, whe ... | 1985 | 3009515 |
| in ovo interference of embryo non-lethal avian infectious bronchitis viruses (ibv) with velogenic newcastle disease virus and embryo adapted ibv. | avian infectious bronchitis virus (ibv) interfered with the lethal effects of velogenic newcastle disease virus (ndv) and embryo adapted ibv in eggs previously inoculated with non-lethal ibv. greater interference was noted in eggs superinfected with embryo adapted ibv than velogenic ndv. the interference could be eliminated by treating the initial ibv with homologous anti-ibv serum. | 1986 | 3010408 |
| coronavirus ibv: partial amino terminal sequencing of spike polypeptide s2 identifies the sequence arg-arg-phe-arg-arg at the cleavage site of the spike precursor propolypeptide of ibv strains beaudette and m41. | the spike protein of avian infectious bronchitis coronavirus comprises two glycopolypeptides s1 and s2 derived by cleavage of a proglycopolypeptide so, the nucleotide sequence of which has recently been determined for the beaudette strain (binns, m.m. et al., 1985, j. gen. virol. 66, 719-726). the order of the two glycopolypeptides within so is aminoterminus(n)-s1-s2-carboxyterminus(c). to locate the n-terminus of s2 we have performed partial amino acid sequencing on s2 from ibv-beaudette labell ... | 1986 | 3010595 |
| coronavirus ibv glycopolypeptides: locational studies using proteases and saponin, a membrane permeabilizer. | [35s]methionine-labelled avian infectious bronchitis virus (ibv) (strain 41) and its purified protein components and virions of ibv-beaudette were incubated with 10 proteases. several proteases hydrolysed all or some of the membrane glycopolypeptide (m; mr 30k) and removed about 1.3k of peptide from the amino-(n-)-terminus plus both glycans, as determined by sds-polyacrylamide gel electrophoresis. n-terminal analysis of [3h]isoleucine-labelled m after hydrolysis by bromelain revealed that the fi ... | 1986 | 3010596 |
| cytoplasmic domains of cellular and viral integral membrane proteins substitute for the cytoplasmic domain of the vesicular stomatitis virus glycoprotein in transport to the plasma membrane. | oligonucleotide-directed mutagenesis was used to construct chimeric cdnas that encode the extracellular and transmembrane domains of the vesicular stomatitis virus glycoprotein (g) linked to the cytoplasmic domain of either the immunoglobulin mu membrane heavy chain, the hemagglutinin glycoprotein of influenza virus, or the small glycoprotein (p23) of infectious bronchitis virus. biochemical analyses and immunofluorescence microscopy demonstrated that these hybrid genes were correctly expressed ... | 1986 | 3011809 |
| infectious bronchitis immunity: its study in chickens experimentally infected with mixtures of infectious bronchitis virus and escherichia coli. | the live infectious bronchitis (ib) vaccine, h120, protected chickens against intranasal challenge with a mixture of escherichia coli strains (e. coli pool) and ib virus (ibv) strains of the same (massachusetts) serotype as h120; it usually also protected against challenge with the e. coli pool and ibv strains of other serological types. when these challenge strains were themselves used as vaccines they usually protected against challenge with a mixture of the e. coli pool and an ibv strain of t ... | 1986 | 3014052 |
| coronavirus ibv: virus retaining spike glycopolypeptide s2 but not s1 is unable to induce virus-neutralizing or haemagglutination-inhibiting antibody, or induce chicken tracheal protection. | avian infectious bronchitis coronavirus (ibv) inactivated by beta-propiolactone induced partial protection of the trachea in up to 40% of chickens following one intramuscular inoculation 4 to 6 weeks prior to challenge. retention of an intact tracheal ciliated epithelium 4 days after challenge was the criterion of protection. there was no correlation between protection and serum titres of virus-neutralizing (vn) and haemagglutination-inhibiting (hi) antibody, which were maximal at about 4 weeks ... | 1986 | 3014053 |
| coronavirus ibv: removal of spike glycopolypeptide s1 by urea abolishes infectivity and haemagglutination but not attachment to cells. | urea has been used to remove the s1 spike glycopolypeptide from avian infectious bronchitis virus (ibv) strains m41 and beaudette, without removing the s2 spike-anchoring glycopolypeptide. reduction of the ph to 2.9 did not cause release of s1 although some s1 was released spontaneously from ibv beaudette at ph 7.4. virus that lacked s1 was no longer infectious or able to cause haemagglutination (ha). however, radiolabelled ibv that lacked s1 attached to erythrocytes and chick kidney cells to th ... | 1986 | 3014054 |
| rapid serological profiling by enzyme-linked immunosorbent assay. iv. association of infectious bursal disease serology with broiler flock performance. | breeder and broiler flocks were serologically evaluated using a multiple enzyme-linked immunosorbent assay (m-elisa). the serologic status of two commercial broiler-breeder flocks and their progeny was monitored, and 840 sera were promptly assessed for antibodies against six infectious agents using the m-elisa. breeder flocks were sampled at lay, and broiler chicks were hatched from fertile eggs collected on the scheduled lay date of the breeders. the broiler chicks were placed for growout as ei ... | 1986 | 3015100 |
| nonspecific reactions in an enzyme-linked immunosorbent assay caused by binding of immunoglobulins in situ to egg-propagated infectious bronchitis virus. | high levels of nonspecific background absorbance and increased variability were found in a previously optimized enzyme-linked immunosorbent assay (elisa) for infectious bronchitis virus (ibv) antibody after changing to commercially available non-pathogen-free eggs for viral antigen production. an increase in bound viral antigen in the assay caused a proportionate increase in the nonspecific binding of the conjugate, independent of other variables, in the absence of serum. virus was propagated in ... | 1986 | 3015101 |
| reversion to virulence of chicken-passaged infectious bronchitis vaccine virus. | serial passage of two infectious bronchitis virus (ibv) vaccine strains in chickens enhanced their capacity to increase the incidence and severity of mycoplasma synoviae (ms) airsacculitis. included in this report were the mild massachusetts-type connaught strain and the arkansas 99 vaccine strain of ibv. the connaught strain and one of two ark 99 vaccine strains passaged in chickens increased the incidence of airsacculitis markedly compared with nonpassaged virus. the other ark 99 vaccine virus ... | 1986 | 3015106 |
| coronaviruses associated with outbreaks of transmissible enteritis of turkeys in quebec: hemagglutination properties and cell cultivation. | coronaviruses were observed by electron microscopy in the intestinal contents of turkeys in quebec flocks where repeated outbreaks of enteritis occurred. three isolates could be serially propagated in turkey embryos inoculated by the amniotic route with clarified intestinal contents. purification and concentration of viral particles contained in intestinal contents of infected embryos were achieved by precipitation with polyethylene glycol and ultracentrifugation on sucrose density gradients. th ... | 1986 | 3015116 |
| nucleotide sequence encoding the membrane protein of the ibv strain 6/82. | 1986 | 3016650 | |
| the detection of antibody to avian infectious bronchitis virus by use of immunofluorescence with tissue sections of nephritic kidneys. | 1986 | 3017282 | |
| comparison of the nephropathogenicity of four strains of infectious bronchitis virus. | experiments were conducted to characterize renal lesions in chickens induced by four strains of infectious bronchitis virus (ibv); each has been described as nephropathogenic. those strains were also compared in vaccinated and unvaccinated older chickens for nephropathogenicity. the younger birds were much more susceptible to the nephritogenic effects of the strains. all four strains produced acute renal changes consisting of tubular damage and interstitial inflammatory cell infiltration and ede ... | 1986 | 3021097 |
| the nucleotide sequence of the extreme 5' end of the avian coronavirus genome; implications for the discontinuous mrna synthesis. | 1986 | 3022236 | |
| development of in vitro tests for detection of extraneous agents. | the use of animals in tests to detect extraneous agents is not only undesirable from the ethical viewpoint but also because of the expense and length of time involved in such tests. we have carried out tests on a variety of potential contaminating avian pathogens to determine whether tests in chicks offer any advantage over tests in embryos or cell cultures. in many cases, but not all, in vitro tests were shown to be more sensitive. the use fluorescent antibody or enzyme-linked assays serves to ... | 1986 | 3025038 |
| comparison of the spike precursor sequences of coronavirus ibv strains m41 and 6/82 with that of ibv beaudette. | the nucleotide sequences of the spike precursor genes of infectious bronchitis virus strains m41 and 6/82 have been determined and compared with that of the beaudette strain which we have previously sequenced. the two massachusetts strains, m41 and beaudette, were found to be remarkably similar, having only 3.7% of the amino acids different. the situation with 6/82, one of the new field isolates, is quite different and this strain had 13.8% of its amino acids different from beaudette. the differ ... | 1986 | 3025348 |
| the application of the elisa to the diagnosis and control of avian encephalomyelitis. | an elisa for measuring serum antibody against avian encephalomyelitis virus (aev) was evaluated for its application to the diagnosis and control of avian encephalomyelitis (ae). a scoring system was developed for this elisa (ae elisa-index) so that the overall level of antibody in the flock could be presented in a single, convenient number. during suspected outbreaks of disease thought to have been caused by aev infection, the ae elisa-index increased in sequential serum samples. high levels of ... | 1986 | 3026302 |
| [immunogenicity of inactivated, multivalent ib/nd oil emulsion vaccine in hybrid laying and fattening animal flocks]. | 1986 | 3026770 | |
| completion of the sequence of the genome of the coronavirus avian infectious bronchitis virus. | the nucleotide sequence determination of the genome of the beaudette strain of the coronavirus avian infectious bronchitis virus (ibv) has been completed. the complete sequence has been obtained from 17 overlapping cdna clones, the 5'-most of which contains the leader sequence (as determined by direct sequencing of the genome) and the 3'-most of which contains the poly(a) tail. approximately 8 kilobases at the 3' end of this sequence have already been published. these contain the sequences of mr ... | 1987 | 3027249 |
| effects of infectious bronchitis virus (arkansas strain) on laying chickens. | seventy-seven-week-old white leghorn layers were inoculated intraocularly with the arkansas strain of infectious bronchitis virus (aibv) to study the effects of the virus on egg production and on antibody response of the birds. infected hens laid fewer eggs than the controls, and those eggs weighed less than eggs laid by controls. further, the shell quality and internal quality of eggs laid by infected birds were inferior. the serum hemagglutination-inhibition (hi) titers of infected birds incre ... | 1986 | 3028350 |
| standardization and application of the enzyme-linked immunosorbent assay for infectious bronchitis. | the indirect enzyme-linked immunosorbent assay (elisa) was used to detect antibody to infectious bronchitis virus in chickens. the serum-neutralization test for infectious bronchitis (snib) was used as a reference serologic test. the elisa proved to be useful for monitoring antibody responses following vaccination of leghorn chicks. the titers obtained with the elisa and snib showed an overall correlation, but results suggest the involvement of different antibody classes. | 1986 | 3028354 |
| serological profiles of commercial broiler breeders and their progeny. 1. infectious bronchitis virus. | serum samples were collected from broiler breeders and their 1-day-old, 2-week-old, and 5-week-old progeny from different regions of the united states. individual samples were tested by hemagglutination-inhibition (hi) against six infectious bronchitis virus (ibv) strains: massachusetts 41 (mass), h52, connecticut 46 (conn), arkansas 99, se17, and jmk. the use of multiple strains to test broiler flocks resulted in the detection of seroconversions to conn and jmk vaccination that were not detecte ... | 1986 | 3028356 |
| molecular epidemiology of infectious bronchitis virus in the netherlands. | twelve dutch isolates and the m41 strain of infectious bronchitis virus (ibv), a coronavirus of chickens, were characterized by cross-neutralization and t1 finger-printing to elucidate their evolutionary relationship. the t1 fingerprinting showed that the dutch isolates formed two clusters. the first cluster contained strains h52, h120, d387, v1259, v1385 and v1397; the estimated sequence homology is 99%. cluster two comprised strains d207, d274, d212, d1466, d3128 and d3896, which have about 95 ... | 1987 | 3029279 |
| prevalence of ibv antibodies in turkey breeding flocks in israel. | 1987 | 3029940 | |
| [incidence of serum neutralizing antibodies to various variant strains of the infectious bronchitis virus in chickens in south württemberg]. | 1986 | 3030260 | |
| comparison of the effect of live newcastle disease vaccine clone 30 in broilers administered at day 1 or at day 7 and the effect of h120 vaccination at 17 days of age: a field experiment. | to analyse the results of a vaccination on the first day of age against newcastle disease (nd) and on the 17th day of age against infectious bronchitis (ib) resp. with spray vaccines with clone 30 and h120 vaccine. these vaccinations are compared in field circumstances with other vaccination methods. a serological examination and challenge test were used to be informed about the response and protection. from the present study the following conclusions can be drawn: clear indications are obtained ... | 1987 | 3031867 |
| incidence, characterisation and prophylaxis of nephropathogenic avian infectious bronchitis viruses. | 1987 | 3033872 | |
| comparison of two commercial enzyme-linked immunosorbent assays and conventional methods for avian serology. | sera tested for hemagglutination-inhibition (hi) activity against newcastle disease virus (ndv) and infectious bronchitis virus (ibv) and virus-neutralizing (vn) activity against infectious bursal disease virus (ibdv) and viral arthritis (va) virus were collected from a wide variety of accessions into the diagnostic services laboratory, poultry disease research center, university of georgia. the sera were then segregated according to hi or vn titer to ndv, ibv, ibdv, or va virus and stored froze ... | 1987 | 3034226 |
| serological differentiation of avian infectious bronchitis field isolates using an enzyme immunoassay: presence of dutch strains in west germany. | six field virus isolates were identified as the etiologic agent of avian infectious bronchitis (ib) in west germany. a serological comparison was carried out using the m-41 strain from the massachusetts serotype and the dutch variant strains d-207, d-1466, d-3128, and d-3896 in a cross indirect immunoperoxidase test. three isolates demonstrated similarity to the m-41 strain; the remainder showed a closer antigenic relationship to the dutch variant strains. these results correspond to differences ... | 1987 | 3034228 |
| sequence and n-terminal processing of the transmembrane protein e1 of the coronavirus transmissible gastroenteritis virus. | sequencing of part of a clone from a transmissible gastroenteritis virus genome cdna library led to the identification of the gene encoding the e1 matrix protein. the amino acid sequence of the primary translation product predicts a polypeptide of 262 residues which shares many features with the previously characterized murine hepatitis virus and infectious bronchitis virus e1 proteins. however, n-terminal amino acid sequencing revealed that a putative signal peptide of 17 residues was absent in ... | 1987 | 3035066 |
| the predicted primary structure of the peplomer protein e2 of the porcine coronavirus transmissible gastroenteritis virus. | the complete nucleotide sequence of cloned cdnas containing the e2 glycoprotein-encoding region of the genome of transmissible gastroenteritis virus (tgev) has been determined. a single large translatable frame of 4.3 kb starting at 8.2 kb from the 3' end of the genome was identified. its deduced amino acid sequence contains the characteristic features of a coronavirus peplomer protein: the precursor polypeptide of tgev e2 is 1447 residues long (i.e. 285 longer than the avian infectious bronchit ... | 1987 | 3037011 |
| systemic and local antibody responses in chickens after infection and vaccination with infectious bronchitis virus. | 1987 | 3037564 | |
| effects of mutations in three domains of the vesicular stomatitis viral glycoprotein on its lateral diffusion in the plasma membrane. | the lateral mobility of the vesicular stomatitis virus spike glycoprotein (g protein) and various mutant g proteins produced by site-directed mutagenesis of the g cdna has been measured. fluorescence recovery after photobleaching results for the wild type g protein in transfected cos-1 cells yielded a mean diffusion coefficient (d) of 8.5 (+/- 1.3) x 10(-11) cm2/s and a mean mobile fraction of 75% (+/- 3%). eight mutant proteins were also examined: dtm14, lacking six amino acids from the transme ... | 1987 | 3038931 |
| cross-reactivity among infectious bronchitis viruses in enzyme-linked immunosorbent assay. | 1987 | 3039225 | |
| effect of dietary acidification on kidney damage induced in immature chickens by excess calcium and infectious bronchitis virus. | experiments were designed to evaluate the effect of dietary acidification on the development of kidney lesions induced by excess dietary calcium (ca) and gray strain infectious bronchitis virus (ibv). specific pathogen-free (spf) chicks and spf chicks inoculated with gray strain ibv were fed one of three diets: a commercial pullet grower ration (1% ca); a commercial layer ration (3.25% ca); or layer ration plus .5% ammonium chloride (acidified layer ration). gray strain ibv significantly reduced ... | 1987 | 3039478 |
| antibodies to avian infectious bronchitis virus in pakistani chickens. | using the hemagglutination inhibition test, sera from 20 diseased and 3 apparently healthy chicken flocks in pakistan were examined for antibodies to four types of avian infectious bronchitis virus (aibv). these flocks were not vaccinated against aibv. of the 900 serum samples from diseased flocks, 78 (8.7%) had antibodies to the massachusetts (m41) type, 23 (2.6%) to the arkansas type and 20 (2.2%) to the connecticut type of aibv. none had antibodies to the jmk type. none of the sera (n = 100) ... | 1987 | 3039480 |
| an outbreak of avian urolithiasis on a large commercial egg farm. | a significant outbreak of avian urolithiasis was observed on a large commercial egg farm. from the initial outbreak site (a single laying house), the incidence of urolithiasis slowly spread in the ensuing months to numerous other laying houses. increasing mortality associated with urolithiasis commenced during late growout to early lay and then leveled off when egg production peaked. at the height of the outbreak, mortality was typically 0.5% per week; 75% of this mortality was due to urolithias ... | 1987 | 3039970 |
| cdna cloning and sequence analysis of the gene encoding the peplomer protein of feline infectious peritonitis virus. | the peplomer gene of feline infectious peritonitis virus (fipv) strain 79-1146 was isolated from a genomic cdna library by differential hybridization with rna 2 and 3 as probes. from the nucleotide sequence a primary translation product of 1452 residues (mr 160,472) was predicted, containing an n-terminal signal sequence, a c-terminal transmembrane segment and 35 potential n-linked glycosylation sites. by s1 nuclease analysis the 5' end of the presumptive rna 2 body was located at about 30 nucle ... | 1987 | 3312491 |
| an efficient ribosomal frame-shifting signal in the polymerase-encoding region of the coronavirus ibv. | the polymerase-encoding region of the genomic rna of the coronavirus infectious bronchitis virus (ibv) contains two very large, briefly overlapping open reading frames (orf), f1 and f2, and it has been suggested on the basis of sequence analysis that expression of the downstream orf, f2, might be mediated through ribosomal frame-shifting. to examine this possibility a cdna fragment containing the f1/f2 overlap region was cloned within a marker gene and placed under the control of the bacteriopha ... | 1987 | 3428275 |
| a historical account of the diagnosis and characterization of strains of mycoplasma gallisepticum of low virulence. | numerous chicken flocks were studied beginning in 1970 because of questionable results on their serologic tests for mycoplasma gallisepticum (mg). typically a low number of hens in the flocks were positive reactors to the rapid serum plate test and rarely had hemagglutination-inhibition (hi) titers over 1:80. usually no clinical signs were observed. isolates of mg eventually were cultured from most of the flocks that exhibited that type of marginal serologic pattern. in the laboratory, the mg is ... | 1986 | 3767812 |
| infectious bronchitis virus rna d encodes three potential translation products. | 1986 | 3960740 | |
| presumptive diagnosis of subclinical infections utilizing computer-assisted analysis of sequential enzyme-linked immunosorbent assays against multiple antigens. | one-hundred-seventy-two serum samples, collected sequentially from four flocks of egg- and meat-type chickens, were evaluated for antibodies to multiple infectious agents by enzyme-linked immunosorbent assay (melisa). the melisa system used provided simultaneous measurement of antibody titers against avian infectious bronchitis (ib), infectious bursal disease (bd), newcastle disease, avian encephalomyelitis and reovirus infections, and mycoplasma gallisepticum. the use of computer-generated grap ... | 1985 | 4048057 |
| avian infectious bronchitis virus characteristics of an inhibitor found in serum. | 1973 | 4120845 | |
| the nucleic acid of infectious bronchitis virus. | 1973 | 4129679 | |
| intracellular development of infectious bronchitis virus. | 1967 | 4167907 | |
| serial passage of 3 strains of avian infectious bronchitis virus in african green monkey kidney cells (vero). | 1973 | 4203249 | |
| some observations on the propagation of avian infectious bronchitis virus in tissue culture. | 1974 | 4207765 | |
| neutralizing and precipitating antibodies against infectious bronchitis virus in chickens. | 1974 | 4208959 | |
| avian infectious bronchitis: demonstration of serum igg- and igm-neutralizing antibody by sucrose density-gradient centrifugation and mercaptoethanol reduction. | 1974 | 4215411 | |
| growth in suckling-mouse brain of "ibv-like" viruses from patients with upper respiratory tract disease. | 1967 | 4298953 | |
| some characteristics of hemagglutination of certain strains of "ibv-like" virus. | 1969 | 4310341 | |
| [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]. | 2016 | 4322161 | |
| buoyant density of hemagglutinating encephalomyelitis virus of swine: comparison with avian infectious bronchitis virus. | 1972 | 4339084 | |
| avian adenovirus alone or followed by infectious bronchitis virus in laying hens. | 1972 | 4339282 | |
| the replication of infectious bronchitis virus in fowl trachea. | 1972 | 4344144 | |
| research note--avian encephalitis virus as a chicken kidney cell-culture contaminant and its effect on the growth of infectious bronchitis virus. | 1973 | 4355965 | |
| local immunity to avian infectious bronchitis in tracheal organ culture. | 1974 | 4368876 | |
| isolation of avian viruses from the eggs of raillietina tetragona and ascaridia galli. | 1974 | 4376077 | |
| infectious bronchitis in laying fowls. | 1968 | 4378174 | |
| the effect of the suppression of circulating antibody on resistance to the australian avian infectious bronchitis virus. | 1974 | 4419569 | |
| interferon induction by different strains of infectious bronchitis virus. | 1974 | 4423767 | |
| nephrosis in laying chickens caused by massachusetts-type infectious bronchitis virus. | 1974 | 4450393 | |
| the histopathology of an interstitial nephritis in the fowl produced experimentally with infectious bronchitis virus. | 1974 | 4452936 | |
| pathogenicity of four serotypes of avian infectious bronchitis virus for the oviduct of young chickens of various ages. | 1972 | 4552675 | |
| persistence of virus in the tissues and development of the oviduct in the fowl following infection at day old with infectious bronchitis virus. | 1972 | 4552937 | |
| pathogenicity of two embryo-passage levels of avian infectious bronchitis virus for the oviduct of young chickens of various ages. | 1972 | 4565461 | |
| the pathogenesis of virulent and avirulent avian infectious bronchitis virus. | 1973 | 4573193 | |
| serological comparisons of strains of infectious bronchitis virus using plaque-purified isolants. | 1974 | 4597565 | |
| 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 ... | 1974 | 4609905 |
| use of allantoic cells for the detection of avian infectious bronchitis virus. | 1972 | 4622264 | |
| 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. | 1972 | 4622823 |
| replication of avian infectious bronchitis virus in african green monkey kidney cell line vero. | 1972 | 4627930 | |
| avian infectious bronchitis virus: serologic response of chickens to seven beta-propiolactone-inactivated strains. | 1972 | 4640181 | |
| egg quality and production following infectious bronchitis virus exposure at one day old. | 1972 | 4643125 | |
| [studies on antigenic and immunologic properties of the infectious bronchitis virus in the ussr]. | 1972 | 4654924 | |
| the effectiveness of immunization to newcastle disease, avian infectious bronchitis and avian infectious coryza with inactivated combined vaccines. | 1972 | 4668500 | |
| plaque formation by infectious bronchitis virus in chicken embryo kidney cell cultures. | 1973 | 4712808 | |
| a direct complement fixation test for infectious bronchitis virus using heat-inactivated chicken sera. | 1973 | 4722792 | |
| a new serotype of infectious bronchitis virus responsible for respiratory disease in arkansas broiler flocks. | 1973 | 4748341 | |
| neutralizing antibody in nasal secretions of chickens following administration of avian infectious bronchitis virus. | 1973 | 4772938 | |
| the inhibition of infectious bronchitis virus multiplication by celo virus in the fowl embryo. | 1973 | 4792016 | |
| morphological variation among avian infectious bronchitis virus strains. | 1974 | 4819986 | |
| differentiation of two serotypes of infectious bronchitis virus by the macrophage migration-inhibition test. | 1974 | 4828582 | |
| preparation and immunological response to a new mixed vaccine composed of inactivated newcastle disease virus, inactivated infectious bronchitis virus, and inactivated hemophilus gallinarum. | 1974 | 4853743 | |
| intracellular avian infectious bronchitis virus: detection by fluorescent antibody techniques in nonavian kidney cell cultures. | 1969 | 4897893 | |
| differentiation of avian infectious bronchitis virus serotypes by immunofluorescence. | 1969 | 4902777 | |
| differentiation and detection of infectious bronchitis virus subtypes by immunofluorescence. | 1970 | 4907606 | |
| avian infectious bronchitis. | 1970 | 4922142 | |
| adaptation and propagation of avian infectious bronchitis virus in embryonic turkey kidney cell cultures. | 1971 | 4926595 | |
| criteria for examining the immune response to infectious bronchitis virus. | 1971 | 4926598 | |
| [detection of the virus of avian infectious bronchitis by the fluorescent antibody technic]. | 1970 | 4927882 | |
| measurement of antigenic and pathogenic variability of infectious bronchitis virus strains by trachea. | 1971 | 4932186 | |
| characterization of a new infectious bronchitis virus isolate. i. serological and pathogenicity studies of clark 333. | 1971 | 4938694 | |
| immune response in chickens to infectious bronchitis virus, strain 33. i. response to beta-propiolactone-inactivated virus. | 1971 | 4945988 | |
| immune response in chickens to infectious bronchitis virus, strain 33. ii. response to virus propagated in chicken embryo kidney cells. | 1971 | 4945989 | |
| immunofluorescence of avian infectious bronchitis virus and newcastle disease virus in singly and dually infected cell cultures. | 1971 | 4945993 | |
| [method of growth in the chick embryo of the massachusetts and connecticut types of avian infectious bronchitis virus]. | 1965 | 4955842 |