Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| lyophilization of cell-free marek's disease herpesvirus and a herpesvirus from turkeys. | cell extracts of the jm and ga strains of marek's disease herpesvirus and the fc 126 strain of turkey herpesvirus were lyophilized with various stabilizers. much higher virus titers were obtained with stabilizer than without stabilizer. titers increased even further in the case of the marek's disease virus strains by the addition of a chelating agent, disodium ethylenediaminetetraacetate. | 1970 | 4320863 |
| protection against marek's disease by vaccination with a herpesvirus of turkeys. | 1970 | 4913403 | |
| ultrastructural studies of a herpesvirus of turkeys antigenically related to marek's disease virus. | 1971 | 4322626 | |
| isolation of turkey herpesvirus in cell culture. | 1971 | 4325202 | |
| effect of vaccination with herpesvirus of turkeys (hvt) on horizontal spread of marek's disease herpesvirus. | 1971 | 4325826 | |
| horizontal transmission of turkey herpesvirus to chickens. 1. preliminary observation. | 1971 | 4328146 | |
| marek's disease: resistance of turkey herpesvirus-infected chicks against lethal jm-v agent. | 1971 | 4329922 | |
| interferon production and host resistance to type ii avian (marek's) leukosis virus (jm strain). | interferon production in both susceptible s- and resistant k-line chickens infected with type ii leukosis virus of jm strain and turkey herpesvirus was studied. the resistant line of chickens produced higher levels of interferon than did the susceptible with jm virus infection during the experimental period. when both susceptible s-and resistant k-line chicks were vaccinated with turkey herpesvirus, the interferon production was quantitatively similar in the two lines. | 1971 | 4332041 |
| the temporal relationship between vaccination with the herpesvirus of turkeys and challenge with virulent marek's disease virus. | 1971 | 4334075 | |
| responses of cell cultures from various avian species to marek's disease virus and herpesvirus of turkeys. | 1971 | 4107762 | |
| epidemiology of a herpesvirus of turkeys: possible sources and spread of infection in turkey flocks. | parameters of turkey herpesvirus (hvt) infection were followed sequentially from hatching through 20 weeks in two commercial turkey flocks. maternal antibody was uniformly present at hatching but decreased below detectable levels by the 3rd week. virus was first isolated at the 5th and 6th weeks and thereafter spread rapidly within the flocks. development of active antibody followed that of viremia by 1 week. both virus and antibody were present in virtually all turkeys after the 7th or 10th wee ... | 1971 | 4343407 |
| pathogenicity and antigenicity of clones from strains of marek's disease virus and the herpesvirus of turkeys. | virus was extracted by filtration from chicken embryo fibroblast cultures infected with the jm, high passage jm(jmhp), ga, and rpl39 strains of marek's disease virus (mdv) and from the herpesvirus of turkeys (hvt) and purified by cloning. the plaques produced by clones of hvt, jmhp, and other mdv strains differed in morphology from one another. clones of mdv varied greatly in pathogenicity for chickens, but jmhp and hvt were nonpathogenic. two pathogenic clones of jm virus and a clone of jmhp vi ... | 1971 | 16557968 |
| studies on the in vivo replication of turkey herpesvirus. | 1972 | 4343472 | |
| lack of pathogenicity of marek's disease virus and herpesvirus of turkeys in marmoset monkeys. | 1972 | 4343475 | |
| the fine structure of marek's disease virus and herpesvirus of turkey in cell culture. | 1972 | 4347435 | |
| cell surface antigen on quail cells infected with herpesvirus of turkey or marek's disease virus. | 1972 | 4349460 | |
| the in vitro assay of the herpesvirus of turkeys. | 1972 | 4349817 | |
| serological relationships among herpesviruses: cross-reaction between marek's disease virus and pseudorabies virus as detected by immunogluorescence. | marek's disease virus (mdv) and pseudorabies virus (prv) cross-reacted by fluorescent antibody test but not by gel diffusion, virus neutralization, or cross-protection tests. herpesvirus of turkeys cross-reacted with mdv but not with prv. other herpesviruses tested did not have cross-reactions. | 1972 | 4117951 |
| [titration of turkey herpesvirus in marek's disease vaccines]. | 1972 | 4562834 | |
| a multilayer cell-culture technique to improve yields of a herpesvirus of turkeys. | 1972 | 4565460 | |
| effects of passive antibody on early pathogenesis of marek's disease. | the effects of passive marek's disease virus (mdv) antibody were characterized in three experiments in which 1- or 2-day-old pdrc chickens were inoculated with cell-associated mdv. antibody acquired naturally from the dam, or injected prior to, or at the time of, virus inoculation, failed to prevent infection, but the incidence and severity of the acute necrotizing disease were reduced. also, the number of tissues with viral antigen (fluorescent antibody test) and the amount of antigen in positi ... | 1972 | 4569917 |
| production of interferon by the cal-1 and turkey herpesvirus strains associated with marek's disease. | 1972 | 4335398 | |
| production of circulating and cell-bound interferon in chickens by type 1 and type 2 plaque-producing agents of the cal-1 strain of marek's disease herpesvirus and herpesvirus of turkeys. | 1972 | 4335399 | |
| preliminary observations on egg transmission of turkey herpesvirus (hvt) in turkeys. | 1972 | 4337315 | |
| experimental infection of turkeys and chickens with a herpesvirus of turkeys (hvt). | 1972 | 4337317 | |
| long-term field trials with the herpesvirus of turkeys vaccine against marek's disease. | 1972 | 4337318 | |
| susceptibility of mammalian (hamster) cell culture to infection with herpesvirus of turkeys. | herpesvirus of turkeys (hvt) infected and replicated in hamster kidney cells as evidenced by cytopathic effects, intranuclear inclusions, and by the presence of herpesvirus particles as seen by electron microscopy. additional evidence for the presence of hvt in cell cultures was determined by the serum neutralization, complement fixation, and the fluorescent-antibody tests. | 1972 | 4341969 |
| course of infection in tissues of susceptible chickens after exposure to strains of marek's disease virus and turkey herpesvirus. | 1972 | 4650200 | |
| long-term experiences with the herpesvirus of turkeys (hvt) as a vaccine against marek's disease. | 1972 | 4660528 | |
| immunization of one-day-old chicks against marek's disease with turkey herpesvirus. | 1972 | 4660529 | |
| vaccination experiments against marek's disease by application of an attenuated marek herpesvirus and a turkey herpesvirus. | 1972 | 4660530 | |
| growth characteristics of a herpesvirus of turkeys. | the herpesvirus of turkeys remains associated with cells attached to the culture vessel throughout its growth cycle. the level of infectious centers is essentially constant between 24 and 48 hr when the culture medium is unchanged. thereafter, the number of infectious centers decreases. the cessation of virus synthesis is not due to insufficient numbers of uninfected cells or interferon production. herpesvirus of turkeys does not replicate at 22 c and is similar to other herpesviruses in its sen ... | 1972 | 4675446 |
| [isolation of turkey herpesvirus in france]. | 1972 | 4676686 | |
| in vitro methods for assay of turkey herpesvirus. | 1972 | 5026286 | |
| performance response of a leghorn-type layer flock to turkey herpesvirus vaccine. | 1972 | 5026287 | |
| viral interference of types 1 and 2 plaque-producing agents derived from cal-1 strain of marek's disease herpesvirus and turkey herpesvirus. | 1972 | 5030950 | |
| turkey herpesvirus: lack of oncogenicity for turkeys. | 1972 | 5038659 | |
| in vitro assay of cell-free turkey herpesvirus. | 1972 | 5062812 | |
| induction of deoxyribonucleic acid synthesis and the oncogenicity of marek's disease virus. | leukocytes recovered from birds inoculated with an oncogenic strain of marek's disease virus synthesized deoxyribonucleic acid in vitro at a rate 7.9 times that of leukocytes from normal birds or birds inoculated with the nononcogenic herpesvirus of turkeys. a close relationship was observed between the level of in vitro deoxyribonucleic acid synthesis and in vivo tumor formation. | 1972 | 5073927 |
| inoculation of one-day-old chicks with different strains of turkey herpesvirus. i. serological studies. | 1972 | 5079871 | |
| inoculation of one-day-old chicks with different strains of turkey herpesvirus. ii. virus replication in tissues of inoculated animals. | 1972 | 5079877 | |
| vaccination against marek's disease with cell-free turkey herpesvirus: interference by maternal antibody. | 1972 | 5079883 | |
| vaccination with lyophilized turkey herpesvirus (hvt): minimum infective and protective doses. | 1972 | 4623703 | |
| marek's disease vaccine: prophylactic efficacy of a lyophilized turkey herpesvirus of chick cell-culture origin. | 1973 | 4633273 | |
| stability of the apathogenic nononcogenic character of a turkey herpesvirus used to immunise fowls against marek's disease. | 1973 | 4718146 | |
| efficacy of cellfree and cell-associated herpesvirus of turkeys vaccines in progeny from vaccinated parental flocks. | 1973 | 4720673 | |
| plaque assay of turkey herpesvirus and attenuated marek's disease virus. | 1973 | 4722361 | |
| replication of herpesvirus of turkeys in hamster urogenital cell cultures. | 1973 | 4734889 | |
| neutralization studies with marek's disease virus and turkey herpesvirus. | use of marek's disease virus (mdv) in a neutralization test presents several problems, which are described, making this potentially useful test difficult. to obviate these difficulties, a plaque reduction test has been designed based on cross-neutralization of turkey herpesvirus (hvt) by serum-neutralizing mdv. the technique for such a neutralization test is outlined. kinetics of development of neutralizing antibodies in chickens inoculated with hvt and mdv are described. the neutralization test ... | 1973 | 4767297 |
| efficacy of turkey herpesvirus vaccine against marek's disease in broilers. | 1973 | 4773339 | |
| dose effect of herpesvirus of turkeys on protection of chickens from marek's disease. | 1973 | 4792400 | |
| immunologic relationship between jm and jmv leukosis strains and herpesvirus of turkeys. | 1973 | 4795894 | |
| susceptibility of guinea pig cell cultures to infection with cell-bound and cell-free herpesvirus of turkeys. | cell-bound and cell-free herpesvirus of turkeys infected and replicated in guinea pig cell cultures as evidenced by cytopathic effects, intranuclear inclusions, and the presence of herpesvirus particles as seen by electron microscopy were studied in this investigation. further evidence for the replication of herpesvirus of turkeys in cell cultures was determined by serum neutralization, complement fixation, and the fluorescent antibody tests. | 1973 | 4581013 |
| effect of antibiotics on turkey herpesvirus vaccine. | 1973 | 4122718 | |
| vaccination against marek's disease: possible causes of failure of herpesvirus of turkeys (strain fc126) to protect chickens against marek's disease. | 1973 | 4350544 | |
| horizontal transmission of turkey herpesvirus to chickens. 2. some factors affecting transmission. | 1973 | 4350858 | |
| viraemia and antibody development in chicks following the administration of turkey herpesvirus. | 1973 | 4352992 | |
| properties of the common antigen associated with marek's disease herpesvirus and turkey herpesvirus infections. | 1974 | 4363692 | |
| antibody response of susceptible and resistant chickens (type-ii leukosis) infected with jm and jm-v leukosis strains and herpesvirus of turkeys (hvt). | 1974 | 4368422 | |
| marek's disease virus and the herpesvirus of turkeys. | 1974 | 4371178 | |
| vaccination of chickens against marek's disease with cell-free herpesvirus of turkeys vaccine. | 1974 | 4429246 | |
| electron microscopic autoradiography in the development of herpesvirus of turkey. | 1974 | 4441257 | |
| [electron microscopic study of the genesis, fine structure and relationship between virus and host cell of a turkey herpesvirus in cell culture]. | 1974 | 4460929 | |
| quantitative assay of turkey herpesvirus in vaccines against marek's disease of chickens. | 1974 | 4462110 | |
| vaccination against marek's disease with the turkey herpesvirus vaccine. | 1974 | 4462113 | |
| [studies on herpesvirus of turkeys. i. isolation of herpesvirus from turkeys and its virological characteristics (author's transl)]. | 1974 | 4474560 | |
| a comparison of the prophylactic efficacy of lyophilized and cell-associated turkey herpesvirus against marek's disease. | 1974 | 4205347 | |
| [effect of homologous maternal antibodies on the vaccination with herpesvirus of turkeys (hvt)]. | 1974 | 4598094 | |
| transient infectivity and heterokaryon formation in hamster cell cultures inoculated with cell-associated stocks of marek's disease virus and herpesvirus of turkeys. | 1974 | 4612166 | |
| [morphologic changes in chickens with marek's disease vaccinated with cell-associated turkey herpesvirus]. | 1974 | 4828793 | |
| ultrastructure of hamster kidney cell culture infected with herpesvirus. | hamster kidney cell culture was found susceptible to infection and replication of herpesvirus of turkey (hvt) as evidenced by cytopathic effect, induction of hvt-specific, complement-fixing antigen, and demonstration of virus particles by electron microscopy. viral structures at different developmental stages were observed. several infected cells showed a lamellar inclusion body possibly continuous with the endoplasmic reticulum. the function of these lamellar bodies is not known. | 1974 | 4842129 |
| the comparative influence of passive (maternal) antibodies in early exposure to jm virus of progeny chicks of dams vaccinated with jm-v leukosis strain and herpesvirus of turkey (hvt). | 1974 | 4854686 | |
| use of japanese quail embryo fibroblast cells for propagation and assay of turkey herpesvirus fc-126. | japanese quail (coturnix coturnix japonica) fibroblast cell culture monolayers were found to provide a very satisfactory system in which to propagate and assay turkey herpesvirus fc-126, which is used for production of marek's disease vaccine. japanese quail cells were more sensitive than duck cells and of approximately equal sensitivity to chicken cells. foci of infection developed rapidly and uniformly, were of larger size, and were more easily discernible in quail cells than in chicken cells. | 1974 | 4855648 |
| lyophilized turkey herpesvirus (hvt): stability of vaccine and minimum protective dose. | the research reported showed that: the stability of cell-free hvt vaccine, lyophilized and sealed under vacuum, is very high: after one year at 4 degrees -6 degrees c and after 10 days at 37 degrees c the titre decreased only about 0.4 log(10)', the stability of the vaccine, when reconstituted for use in the diluent (sucrose-phosphate buffer), is high (80%) for at least 2 hours; the degree of protection, found in 3 tests, was about 90% with an inoculum of 20 to 100 pfu, and the pd50 was 4.9 pfu ... | 1974 | 18777253 |
| simultaneous vaccination of day-old chickens against newcastle and marek's diseases. | commercial day-old chicks vaccinated against marek's disease (md) with turkey herpesvirus (hvt) were tested for their ability to respond to a live newcastle disease vaccine (ndv) - la sota strain - administered by different routes. simultaneous vaccination of day-old birds with hvt and ndv did not affect the immune response to ndv nor the viraemia induced by hvt vaccination. md and nd vaccinations performed together, the first by the intramuscular route and the second by beak dipping, gave a val ... | 1974 | 18777255 |
| effect of maternal immunity against development of marek's disease and protective ability of vaccine. | experiments were conducted to determine the susceptibility of chicks to marek's disease and the protective effect of the vaccine prepared from herpesvirus of turkey (hvt) on progeny from dams infected with marek's disease virus (mdv), or hvt, or both when they were young. chicks from dams infected with mdv or hvt-mdv were protected from the development of marek's disease when challenged at 3 days of age. the degree of protection decreased when the time of challenge was delayed; no protection was ... | 1975 | 804667 |
| metabolic characteristics of cells infected with a herpesvirus of turkeys. | chicken embryo fibroblasts infected with the nononcogenic herpesvirus of turkeys (hvt) displayed an increased rate of glucose uptake, a pronounced alteration of the ph of the medium, and an increased production of lactic acid when compared to mock-infected cultures. objective estimates of cytopathology (quantifiable neutral red uptake and cell protein determination) showed that cell deterioration was a slow process in hvt-infected cells when compared to infection by herpes simplex virus. experim ... | 1975 | 1548 |
| characterization of a new serotype of marek's disease herpesvirus. | the hprs-24 strain of marek's disease herpesvirus was selected for closer study from a group of virus isolates that appeared apathogenic under standard test conditons. protection studies revealed an immunological relationship between this virus strain and acute marek's disease herpesvirus. in chicken kidney cell cultures, the hprs-24 strain caused small and slowly developing plaques, and the proportion of infected cells was less than with other strains. in chicken embryo fibroblast cultures, thi ... | 1975 | 66180 |
| horizontal transmission of turkey herpesvirus to chickens. iv. viral maturation in the feather follicle epithelium. | an experimental line of white leghorns (wsu-vs) and a commerical line inoculated with turkey herpesvirus (hvt) at 1 or 8 weeks old did not differ in the occurrence of infectious cell-free hvt in their feather-tip preparations (ft-hvt). the birds examined at 2 weeks postinoculation (pi) were always positive for ft-hvt regardless of age at virus inoculation, dose of hvt inoculated, or genetic line of chickens, whereas only a few were positive at 4 weeks and none at 6 weeks pi. | 1975 | 164176 |
| in ovo assay for marek's disease virus and turkey herpesvirus. | marek's disease virus (mdv) and the turkey herpesvirus (hvt) may be assayed on the chorioallantoic membrane (cam) of the chicken embryo after intravenous inoculation of chicken embryo fibroblasts (cef) or chicken blood leukocytes infected with these viruses. free hvt, mdv associated with marek's tumor cells, and lymphoblastoid cell lines derived from marek's tumors, may be assayed in the same way. the intravenous assay is quicker than the yolk sac assay and somewhat more sensitive than in vitro ... | 1975 | 164413 |
| horizontal transmission of turkey herpesvirus to chickens. 3. transmission in three different lines of chickens. | horizontal transmission of turkey herpesvirus (hvt) was studied in three separate trials using three different lines of chickens in each trial. there was no horizontal spread of hvt to contact cagemates through 8 weeks regardless of the line of donor chickens, when inoculated subcutaneously with 9.2 times 10-3 plaque-forming units (pfu) of hvt at 1 week of age. the virus spread poorly to a few cagemates from an experimental line of white leghorns (w.s.u.-v.s.), but not from a commercial line o ... | 1975 | 166362 |
| studies of marek's disease herpesvirus and turkey herpesvirus specific common antigen which stimulates the production of neutralizing antibodies. | an agar-gel precipitation antigen prepared from the skin (feather-ag) of chicken infected with jm strain of marek's disease herpesvirus (mdhv) and cell extracts of cultures infected with either type 2 plaque producing agent (ppa) of mdhv or turkey herpesvirus (hvt) (type 2-ag, hvt-ag) had 1 precipitation line in common. hyperimmune sera to the common antigen (common-ag) neutralized to a greater extent by homologous antiserum. absorption of hvt antiserum or hyperimmune serum to type 2 ppa with co ... | 1975 | 167687 |
| influence of vaccination with avirulent herpesvirus on subsequent infection of chickens with virulent marek's disease herpesvirus. | vaccination of chickens with turkey herpesvirus (hvt) or attenuated marek's disease herpesvirus (amdhv) blocked infection with virulent mdhv (vmdhv) for approximately 5 weeks after contact exposure. however, there was no apparent blockage of infection when challenge virus was administered intraabdominally (ia). evidence for infection with vmdhv was based on viral isolation by in vivo assay or by detecting precipitins to "a" antigen associated with virulent virus. the hvt stimulated production of ... | 1975 | 168799 |
| mitochondrial and herpesvirus-specific deoxypyrimidine kinases. | to characterize and compare the thymidine (tdr) and deoxycytidine (cdr) kinase isozymes of uninfected and herpesvirus-infected cells: (i) the subcellular distribution of the isozymes has been studied; (ii) a specific assay for cdr kinase has been devised; (iii) the tdr kinase isozymes have been partially purified; and (iv) the purified enzymes have been analyzed by disc polyacrylamide gel electrophoresis, isoelectric focusing, and glycerol gradient centrifugation and by substrate competition and ... | 1975 | 169387 |
| marek's disease--the disease and its prevention by vaccination. | marek's disease (md) is a common lymphoproliferative disease of the domestic chicken caused by a cell associated herpesvirus. vaccines used for the prophylaxis of md have been derived from non-pathogenic field marek's disease virus (mdv), pathogenic mdv and the herpesvirus of turkeys (hvt). vaccines derived from mdv have been developed by attenuation of virus strains which produce the acute form of md and virus strains which produce the classical form. they have also been developed by suitable m ... | 1975 | 170953 |
| morphological response of maternal antibody-negative chickens infected with marek's disease virus (mdv), herpesvirus of turkeys (hvt) and both viruses. | 1975 | 172684 | |
| cause of "nakanuke" in chickens. i. occurrence of "nakanuke" in chicken inoculated with the cells showed coexistence or c-type virus and turkey herpesvirus. | 1975 | 183038 | |
| cause of "nakanuke" in chickens. ii. isolation of c-type virus from material infected with turkey herpesvirus. | 1975 | 183039 | |
| efficacy of turkey herpesvirus vaccine when administered simultaneously with fowl pox vaccine. | the efficacy of the turkey herpesvirus (hvt) vaccine in protecting chickens challenged with virulent marek's disease (md) virus was unaffected by the presence of either the chick embryo fowl pox vaccine or fowl pox vaccine derived from cell culture. conversely the hvt vaccine did not affect the efficacy of the fowl pox vaccine in chickens challenged with pathogenic fowl pox virus. a combination of spectinomycin dihydrochloride pentahydrate and lincomycin hydrochloride monohydrate as well as spec ... | 1975 | 180502 |
| effects of strain of chickens and vaccination with turkey herpesvirus on marek's disease and lymphoid leukosis in breeding stocks. | 1. a total of 3236 females from eight meat-type strains, half of which were vaccinated for marek's disease (md), and 11,193 leghorn females from ten strains, all vaccinated for md, were adventitiously exposed to md and lymphoid leukosis (ll) viruses and observed to 392 and 497 d of age, respectively. 2. in the meat-type birds, vaccination reduced total mortality from 43-4% to 27-1% and mortality due to md from 16-4% to 5-4% but did not affect mortality and ll (2-9% and 3-4%). 3. in the vaccinate ... | 1975 | 1156921 |
| a comparison of the efficacy against marek's disease of cell-free and cell-associated turkey herpesvirus vaccine. | one-day-old white leghorn and broiler chicks with maternal antibody to turkey herpesvirus (hvt) were vaccinated with 300 or 1,000 plaque-forming units (pfu) of cell-free or cell-associated hvt vaccine and challenged with virulent marek's disease virus (mdv) by contact exposure. broiler chicks receiving 300 pfu of cell-associated hvt had a 3.3% incidence of md lesions, whereas only 2.0% of those receiving 1,000 pfu had macroscopic lesions. broiler chicks vaccinated with 300 pfu of cell-free vacci ... | 1975 | 1164319 |
| efficacy of lyophilized turkey herpesvirus vaccine against marek's disease in broilers. | field trials involving approximately 1,250,000 chickens vaccinated with cell-free turkey herpesvirus (hvt) vaccine and 635,000 chickens vaccinated with cell-associated hvt vaccine howed both vaccines equally effective in reducing condemnations (attributable to marek's disease) at the poultry processing plant. vaccinated chickens were progeny of hens vaccinated at 1 day of age with cell-associated hvt vaccine. the maternal antibody did not interfere with the ability of either the cell-free or cel ... | 1975 | 1228717 |
| differentiation between strains of marek's disease virus and turkey herpesvirus by immunofluorescence assays. | two serological types of marek's disease virus and a herpesvirus of turkeys have been differentiated by indirect immunofluorescence tests as (1) pathogenic strains of marek's disease virus (mdv) and their attenuated variants: hprs-16, hprs-16/att, hprs-b14, jm, jm/att, ga, vc and 'oldenburg', a recent field isolate; (2) apathogenic strains hprs-24 and hprs-27 of mdv; (3) herpesvirus of turkeys strain fc126 and its hvt(a-) variant. virus strains could not be distinguished on the basis of qualitat ... | 1975 | 18777301 |
| precipitating antigens associated with marek's disease viruses and a herpesvirus of turkeys. | precipitating antigens associated with a number of marek's disease virus strains and with a turkey herpesvirus have been analyzed. the 'a' antigen has been defined as the major soluble antigen in feather follicles of infected chickens, which is identical with the major antigen usually present in supernatants of chicken kidney cell cultures infected with strains of marek's disease virus. 'bc' antigens are 2 or more antigens which are usually not noted in skin extracts but present in cultured cell ... | 1975 | 18777302 |
| vaccination of chickens against marek's disease with the turkey herpesvirus vaccine using a pneumatic vaccinator. | a pneumatic vaccinator has been successfully used to administer cell-associated turkey herpesvirus (hvt) vaccine without a loss in titer due to the pressure required to administer the vaccine. laboratory studies have also shown that chickens vaccinated with graded doses of the hvt vaccine using doses as low as 41 pfu offered protection against marek's disease (md) when compared to the unvaccinated controls. the pneumatic vaccinator has also been successful in administering a combination of hvt v ... | 1976 | 180512 |
| reticuloendotheliosis group virus pathogenic to chicken isolated from material infected with turkey herpesvirus (hvt). | 1976 | 180962 | |
| application of the turkey herpesvirus vaccine by the aerogenic route for the prevention of marek's disease. | recently in laboratory and field trials, birds were vaccinated with cell-free hvt vaccine by aerosol spray. in laboratory trials, birds vaccinated by aerosol spray were as well protected against challenge with virulent md (ga isolate) as those vaccinated by subcutaneous inoculation. birds were vaccinated with a sprayer (spraying systems company, wheaton, illinois) which emits a particle size in which 90% are less than microns. the chicks were sprayed with 1,000 to 10,000 pfu per bird dose and r ... | 1976 | 182596 |
| [differentiation of antibodies against turkey herpesvirus and 2 serotypes of marek's disease virus in the sera of farm chickens]. | 1976 | 183416 | |
| marek's disease vaccine breaks: differences in viremia of vaccinated chickens between those with and without marek's disease. | viremia with turkey herpesvirus (hvt) and/or marek's disease (md) herpesvirus (mdhv) was examined in chickens from three different commercial flocks experiencing "vaccine breaks" following vaccination with hvt vaccine against md. in all groups of sample chickens from the flocks, the incidence of detectable hvt viremia was significantly less in the md-affected than in the healthy penmates, and incidence of md was significantly higher in the birds without detectable hvt viremia than in the viremic ... | 1976 | 183650 |
| turkey herpesvirus infection in chickens: induction of lymphoproliferative lesions and characterization of vaccinal immunity against marek's disease. | chickens vaccinated at hatching with high doses of turkey herpesvirus (hvt) developed viremia that peaked in titer around the 12th day and gradually declined. hvt infection also induced mild microscopic lymphoproliferative lesions in the nerves and gonads. these lesions were most prominent around the 12th day and then regressed. the fact that such lesions were also induced by hvt in cyclophosphamide-treated chicks suggests that they were t-cell-dependent. some of the cells in early hvt lesions a ... | 1976 | 186008 |