| heterogeneity of echovirus type 17: comparison of the two lines of the prototype strain. | | 1973 | 4204550 |
| characterization of echovirus types 7, 12, and 29 hemagglutinins for human and monkey erythrocytes. | | 1974 | 4206511 |
| [plaque production in vero cells by echo virus]. | | 1973 | 4207165 |
| an electron microscopic study of the intracellular development of echovirus 22. | | 1974 | 4209453 |
| penicillin resistance correlated with phage types in staphylococcus aureus. | | 1968 | 4233902 |
| enteroviruses in the north of the european part of the u.s.s.r. 1. the results of virological examinations. | | 1967 | 4241492 |
| [isolation of coxsackie a viruses from the intestine of the house mouse]. | | 1972 | 4268535 |
| [microneutralization test for the determination of some echo virus antibodies using gmk cell line (author's transl)]. | | 1973 | 4271760 |
| hemadsorption-negative plaque test: new assay for rubella virus revealing a unique interference. | a simple and rapid plaque procedure has been developed for detecting and accurately assaying rubella virus in a noncytopathic virus-cell relationship. plaque-formation is based on the development, in individual cells infected with rubella virus, of a unique type of intrinsic interference to infection with newcastle disease virus. rubella virus-infected cells challenged with newcastle disease virus and tested for hemadsorption 15 hours later stand out as hemadsorption-negative areas. individual l ... | 1965 | 4283964 |
| [experimental differentiation of cattle enterovirus strains. ii. culture behavior in chick embryo]. | | 1964 | 4284215 |
| virus susceptibility of marmoset kidney cell cultures. | | 1965 | 4284315 |
| [hemagglutinating properties of enteroviruses and use of the hemagglutination reaction and the hemagglutination inhibition test for practical purposes. i. hemagglutinating properties of strains from the echo virus group]. | | 1964 | 4284398 |
| plaque cinetic index in cultures under agar. | | 1965 | 4284690 |
| antiviral activity of gliotoxin. | | 1965 | 4285752 |
| [unidentifiable questionable enteroviruses in a nursery]. | | 1965 | 4285852 |
| sensitivity of agar overlay method for the recognition of enteroviruses. | comparison of the agar overlay technique with the fluid culture technique for isolation and identification of enteroviruses showed the former to be useful: (i) for isolation of enterovirus when the number of virus particles was too small to produce detectable cytopathic effect (cpe) in fluid cultures, (ii) for isolation of echovirus 22 which did not produce detectable cpe in fluid cultures, (iii) as an aid to rapid differentiation of enteroviruses, and (iv) for differentiation of viruses in mixe ... | 1965 | 4286250 |
| formalinized red cells in diagnostic virology. | | 1966 | 4286300 |
| density of infectious virus and complement-fixing antigens of two rhinovirus strains. | dans, p. e. (national institute of allergy and infectious diseases, bethesda, md.), b. r. forsyth, and r. m. chanock. density of infectious virus and complement-fixing antigens of two rhinovirus strains. j. bacteriol. 91:1605-1611. 1966.-two rhinovirus serotypes (echovirus 28 and hgp) and poliovirus type 1 were banded by isopycnic centrifugation in cesium chloride. the rhinovirus virions had a density of 1.41 g/ml, whereas that of poliovirus was 1.34. since a number of other enteroviruses also h ... | 1966 | 4286454 |
| the virus watch program: a continuing surveillance of viral infections in metropolitan new york families. ii. laboratory methods and preliminary report on infections revealed by virus isolation. | | 1966 | 4286696 |
| the virus watch program: a continuing surveillance of viral infections in metropolitan new york families. 3. preliminary report on association of infections with disease. | | 1966 | 4286697 |
| [does the physiology of the vagina tolerate a virus infection?]. | | 1966 | 4286910 |
| viral spectrum of an established chimpanzee liver cell line. | | 1966 | 4286950 |
| comparative study of seven picornaviruses of man. | jamison, richard m. (baylor university college of medicine, houston, tex.), and heather d. mayor. comparative study of seven picornaviruses of man. j. bacteriol. 91:1971-1976. 1966.-the buoyant densities in cscl and potassium tartrate of seven acid-resistant picornaviruses of man were determined. the viruses studied were found to be a relatively homogeneous group. buoyant densities ranged from 1.32 to 1.35 g/cc in cscl and 1.21 to 1.23 g/cc in potassium tartrate. the buoyant density of each viru ... | 1966 | 4287079 |
| viral infections of monkeys in their natural habitat in southern india. ii. serological evidence of viral infection. | | 1966 | 4287390 |
| [research on some virological and serological aspects of respiratory infections]. | | 1966 | 4287626 |
| viruses and disease: studies in a children's home. | | 1966 | 4287644 |
| gradient plate technique applied to the study of antiviral substances. | | 1966 | 4287656 |
| antibody responses of young infants to naturally occurring viral infections. | | 1966 | 4288467 |
| coxsackie group b virus infection and acute diarrhoea occurring among children in costa rica. | | 1966 | 4288878 |
| [respiratory virus antibodies in human sera from different regions of the world]. | | 1966 | 4288913 |
| enhancing effect of human erythrocyte extracts on the susceptibility of monkey kidney cells to certain enteroviruses. | | 1966 | 4289410 |
| the virus inactivating capacity of sea water. | | 1966 | 4289436 |
| the usefullness of human fibroblast cell lines for the isolation of viruses. | | 1967 | 4289892 |
| immune adherence hemagglutination test as a new sensitive method for titration of animal virus antigens and antibodies. | | 1966 | 4289948 |
| viral agents in gastrointestinal disease. | | 1967 | 4290349 |
| studies of infantile diarrhea in karachi, pakistan. ii. multiple virus isolations from rectal swabs. | | 1967 | 4290523 |
| myxovirus dissemination by air. | myxoviruses including 150 strains of parainfluenza 1, 15 of parainfluenza 3 and five of influenza b virus were isolated from nasopharyngeal secretions obtained from 300 children less than 3 years of age who developed acute laryngotracheobronchitis during the preceding 48 hours. the patients were examined between october 1966 and january 1967, the peak monthly rate of virus isolation (67%) occurring during january. parainfluenza 1 virus was isolated from air obtained in the vicinity of one of 30 ... | 1967 | 4290621 |
| fine structure of cells infected with respiratory strains of echovirus 11. | | 1967 | 4291195 |
| [acute respiratory diseases caused by echo virus. clinical observations and virological study]. | | 1967 | 4291756 |
| bovine enteric cytopathogenic viruses. iv. attempts to identify three prototype strains by neutralization tests with bacterial, bovine, and human reference antigens and antisera. | | 1967 | 4291977 |
| acute ascending polyradiculomyelitis. associated with echo 9 virus. | | 1967 | 4292732 |
| synthesis of uncoated viral rna following picornavirus infection. | | 1966 | 4293033 |
| enhanced diffusion of enterovirus antigens in agar gel in the presence of protamine. | | 1967 | 4294115 |
| photodynamically inactivated vaccines prepared by growing viruses in cells containing neutral red. | | 1967 | 4294650 |
| [virological studies of surface waters and their results]. | | 1966 | 4295631 |
| simian hemorrhagic fever. 3. isolation and characterization of a viral agent. | | 1968 | 4297405 |
| hemagglutinating activity of enteroviruses recovered in two primary cell lines and a stable line. | a microhemagglutination technique was used to detect hemagglutinating properties of enteroviruses recovered in two primary cell lines, monkey kidney (mk) and human amnion (ham), and in a continuous cell line, human embryonic lung (hel). during a 3-year period, 1,528 isolations of enteroviruses were tested for hemagglutinating activity and hemagglutination inhibition response; 96.3% of the viruses were also identified by virus neutralization tests. enteroviruses recovered in hel were far less lik ... | 1968 | 4298173 |
| [the classification of the virus]. | | 1967 | 4298384 |
| isolation and properties of enterovirus receptors. | | 1968 | 4298835 |
| antiviral properties of 1-phenoxymethyl-3,4-dihydro and 1,2,3,4-tetrahydroisoquinolines. | | 1968 | 4299256 |
| [studies on the reactivity of macrophages to enterovirus infections. ii. macrophage culture reaction to the virus introduction]. | | 1968 | 4299407 |
| [studies on the localization of an ecbo virus in calf kidney cells with the help of a fluorescent antibodies]. | | 1967 | 4299643 |
| [production of interferon in tissue cultures and "in vivo" following infection with brucella suis]. | | 1967 | 4300096 |
| search for perinatal viral infection. a prospective, clinical, virologic, and serologic study. | | 1968 | 4300206 |
| viral infections in hospitalized neonates. | | 1968 | 4300207 |
| methods for detecting food-borne enteroviruses. | a method previously reported for detecting virus in a model system composed of cottage cheese contaminated with coxsackievirus type a9 has been adapted to detecting selected strains of enteroviruses in a variety of foods. bentonite is omitted and serum is added for extracting virus from low-protein foods. samples of foods, usually 25 g, must contain at least 3 to 4 plaque-forming units for a 50% probability of detecting virus. sensitivity in detecting echovirus type 6 was lower than that for the ... | 1968 | 4300896 |
| production of reference enteroviruses. | forty-five human enterovirus reagents of certified purity and quality were prepared for use as seed viruses and as immunizing antigens. one of the reagents was ampouled as "untreated" seed virus, whereas 14 were ampouled as "mgcl(2)-stabilized" reagents. the remaining 30 reagents were ampouled as "untreated" seed viruses and as "mgcl(2)-stabilized" reagents. thirty of the reagents were propagated on primary african green monkey kidney cells, 3 on primary baboon kidney cells, 3 on primary rhesus ... | 1968 | 4300898 |
| intrinsic interference: a unique interference system used in assaying non-cytopathic viruses. | | 1967 | 4301198 |
| [complement fixing antibodies to various viruses inducing acute respiratory diseases in children of various ages]. | | 1967 | 4301440 |
| [echo virus infections in switzerland during the past 12 years]. | | 1967 | 4301858 |
| the antiviral activity of 3,4-dihydro-1-isoquinolineacetamide hydrochloride in vitro, in ovo, and in small laboratory animals. | | 1968 | 4301999 |
| defectiveness of interferon production and of rubella virus interference in a line of african green monkey kidney cells (vero). | vero cells, a line of african green monkey kidney cells, failed to produce interferon when infected with newcastle disease, sendai, sindbis, and rubella viruses, although the cells were sensitive to interferon. further, infection of vero cells with rubella virus did not result in interference with the replication of echovirus 11, newcastle disease virus, or vesicular stomatitis virus, even in cultures where virtually every cell was infected with rubella virus. under the same conditions, bsc-1 ce ... | 1968 | 4302013 |
| various antibody holding status against viruses in cercopithecus aethiops and macaca irus. ii. the presence of neutralizing antibody against herpes virus, echo virus and simian virus 40. | | 1967 | 4303328 |
| a new cell line of calf kidney and its susceptibility to viruses. | | 1968 | 4303468 |
| method for testing virus stocks for viral contaminants. | a practical method for testing the purity of virus stocks has been developed and applied to reference stocks of enteroviruses. the method requires the use of a reference antiserum that is substantially free from heterotypic antibody. when selected dilutions of this antiserum are reacted with high concentrations of virus, virus intentionally allowed to escape neutralization is recovered and then identified. a contaminating virus present as a minor component of the population has a far greater pro ... | 1969 | 4304570 |
| [on the antimicrobial effect of peracetic acid. 5. studies on the virucidal effect]. | | 1968 | 4304791 |
| characteristics of cell culture systems. viral flora of canine tissues. | | 1968 | 4305426 |
| differential inhibition of attachment and eclipse activities of hela cells for enteroviruses. | receptor activities of hela cells were evaluated for ability to both attach and eclipse enteroviruses after exposure of cells to acid or heat. a modified procedure of acid (ph 1.5) elution of cell-associated virus, as compared with other procedures, provided a general method for the optimal recovery of receptor-bound enteroviruses. with this procedure, eclipse of virus operationally was considered to be that amount of virus infectivity which was determined initially to be cell-associated and whi ... | 1969 | 4306196 |
| minicultures of mammalian cells in a new plastic plate. | a new disposable micro tissue culture plate was developed and tested for use in virological procedures. miniature mammalian cell cultures (minicultures) were grown in these plates. each plate contained 96 circular cultures in flat wells (7 mm in diameter). replicate titrations of a number of viruses were performed in various tissues. excellent reproducibility was demonstrated. mean infectivity titers determined by miniculture methods were generally within 0.6 log(10)/ml of macro tube titrations. ... | 1969 | 4306263 |
| establishment, steady state and cure of a chronic infection of llc cells with west nile virus. | | 1968 | 4306836 |
| biological characteristics and viral spectrum of serially cultivated fetal rhesus monkey kidney cells. | | 1969 | 4307233 |
| [isolation of a cellular strain from a tumor of chemical origin in hamsters]. | | 1967 | 4309079 |
| a comparative study of standard methods and organ culture for the isolation of respiratory viruses. | | 1969 | 4309724 |
| [study on acute respiratory tract infections in children. 2. virological and seroepidemiological study on acute respiratory tract infections in children]. | | 1969 | 4311354 |
| [isolation and identification of human viruses for diagnostic purposes: results bearing on the years 1961 to 1967]. | | 1969 | 4312605 |
| antiviral action of gliotoxin. | | 1969 | 4313024 |
| inhibition of poliovirus by effect of a methylthiopyrimidine derivative. | | 1970 | 4313152 |
| a respiratory virus study in great britain: review and evaluation. | | 1969 | 4313720 |
| [report on the etiology of virus diseases. 1st quarter 1968. 3]. | | 1968 | 4314370 |
| alkylated pyrimidine derivatives as antiviral agents. i. syntheses and antiviral screening of alkylpyrimidine and 5-alkyluracil nucleoside. | | 1970 | 4314619 |
| viral inactivation by disulfide bond reducing agents. | | 1968 | 4315605 |
| virus isolations from sewage and from a stream receiving effluents of sewage treatment plants. | in order to detect viruses in sewage or streams, it is first necessary to concentrate the virus present in the fluid sample. available methods are not readily manageable for concentrating virus from large volumes of fluid, and have not always yielded high recovery rates. in the study described in this paper, a method for concentration of viruses by adsorption on insoluble cross-linked maleic anhydride polyelectrolytes has been utilized to survey the viral flora of sewage and of a stream receivin ... | 1970 | 4315865 |
| growth of viruses in organ cultures of intestine. | | 1970 | 4316099 |
| ultraviolet devitalization of eight selected enteric viruses in estuarine water. | the effect of ultraviolet (uv) radiation on the devitalization of eight selected enteric viruses suspended in estuarine water was determined. the surviving fractions of each virus were calculated and then plotted against the uv exposure time for purposes of comparison. analytical assessment of the survival data for each virus consisted of least squares regression analysis for determination of intercepts and slope functions. all data were examined for statistical significance. when the slope func ... | 1970 | 4316273 |
| comments on viruses recovered from dogs. | | 1970 | 4316285 |
| characteristics of a human diploid cell designated mrc-5. | | 1970 | 4316953 |
| some properties of a new epithelial cell line of human origin. | | 1970 | 4317734 |
| biological characteristics of cell line gl-v3 derived from the kidney of a vervet monkey (cercopithecus aethiops). | | 1970 | 4318075 |
| [virus occurrence in raw sewage sludge and effluent of a biological clarification plant]. | | 1969 | 4318307 |
| sensitivity of baby hamster kidney (bhk 21-c 13) cells to enteric viruses. brief report. | | 1970 | 4318626 |
| a longitudinal study of enterovirus infections in kawasaki, japan. i. virus isolations from 1962 to 1966. | | 1970 | 4318913 |
| antiviral activity of oxidized polyamines and aldehydes. | | 1970 | 4320201 |
| organ cultures of human fallopian tubes for the propagation of viruses. | | 1970 | 4321445 |
| various antibodies holding status against viruses in cercopithecus aethiops and macaca irus. iv. the presence of antibodies against viruses of human and simian origin. | | 1969 | 4321641 |
| [on an epidemic episode of acute respiratory disease due to echo-1 virus in a children's community]. | | 1968 | 4322060 |
| [current problems of viral neuroinfections]. | | 1971 | 4323554 |
| [the detection of enterovirus in water with the aid of membrane filters]. | | 1971 | 4323981 |
| tests for oncogenicity of viruses under conditions of altered host and virus. | | 1971 | 4324361 |
| mammalian somatic cell hybrids and their susceptibility to viral infection. | | 1971 | 4324981 |
| [poliomyelitis virus relatives]. | | 1971 | 4325111 |