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Abstract

The cold variant was prepared from the "Or-13" strain of type O virus by 300 serial passages in cultures of calf kidney cells incubated at 24°C. Propagation of the cold variant at higher temperatures altered its biological properties. Virus grown at 30°C was pathogenic for unweaned mice, weakly...

Author(s)
Zhidkov, S. A.; Sergeev, V. A.; Trubitsyn, B. I.; Urvantsev, N. M.
Publisher
Moscow,
Citation
Veterinariya, 1970, 10, pp 42-44 pp.
Abstract

The potency of 36 batches of aluminium hydroxide, formolized vaccine prepared from lapinized virus A22 was determined as the 50% protective dose for g.pigs weighing 500-550 g, with cattle weighing 200-300 kg as controls. G.pigs vaccinated i/m with 1 ml of 1: 3, 1: 9 and 1: 27 dilutions were...

Author(s)
Kuleshova, L. A.; Kozlovskii, G. A.; Sorvachev, E. V.; Murashkin, V. I.
Publisher
Moscow,
Citation
Veteri-nariya., 1969, 5, pp 25-27 pp.
Abstract

Strain "O-BFS 1860 BTY 1C1" was studied by cross-c.f. tests and identified as subtype O1 The virus was shown to be highly immunogenic for guineapigs and cattle.-KJB.

Author(s)
BöHm, H. O.; Panjevic, D.
Citation
Berliner und Münchener Tierärztliche Wochenschrift, 1970, 83, pp 409-414
Abstract

Virus type A variant Ai (No. 663) was grown in primary culture of calf kidney cells, pig kidney cells, in transplantable pig kidney cells, in tongue epithelial cells from cattle and in freshly suspended kidney cells from calves and pigs. For the preparation of experimental vaccines the virus was...

Author(s)
Syusyukin, A. A.; Kravets, I. K.; Syusyukina, M. S.; Efimov, N. I.; Sergeev, V. A.; Mel'Nik, R. I.
Publisher
Moscow,
Citation
Veterinariya, 1967, 4, pp 17-18 pp.
Abstract

The test was performed by a micro-method, using g.pig hyperimmune serum and virus antigen of high titre produced in tissue culture Two hours at room temp. or one hour at 37°C gave the best results. The test was suitable for measuring the antibody response to a vaccine.-RM.

Author(s)
Roumiantzeff, M.; Salvatori, J.; CaillèRe, F.
Citation
Recueil de Medecine Veterinaire, 1969, 145, pp 455-463
Abstract

The strain was modified by 82 passages in rabbits (aged 2-3 days) followed by 11 alternating passages in baby rabbits and chicks and 25 passages in day-old chicks. G.pigs vaccinated with 1 ml of a 10% suspension and 10 cattle immunized with dry vaccine were challenged with a virulent virus. The...

Author(s)
Makarova, G. A.; Ogryzkov, S. E.; Nicheporuk, V. S.
Citation
Trudy gosud. nauchno-kontrol. Inst. vet. Preparatov, 1968, 15, pp 47-53
Abstract

O-type lapinized virus of the 321st passage was available in chloroform purified tissue hpmogenates from 2-to 4-day-old rabbits. Various dilutions of this material, stabilized with glycerol, crystal violet and antibiotics, were exposed to 37°C for up to 10 days, the virulence for baby mice and...

Author(s)
Andreev, E. V.; Petrenko, B. G.; Rotov, V. I.; Tolstyak, I. E.; Konozenko, P. A.; Omelaenko, A. A.; Bakumenko, M. D.; Chechetkina, N. P.
Citation
Voprosy vet. Virus, 1966, 2, pp 476-484
Abstract

After 27 passages of Type O2 virus on trypsinized embryonic porcine kidney cells in monolayer culture, the culture liquid contained about 108.5TCID50/ml and was satisfactory for hyperimmunization of cattle and g.pigs. The antiserum, at 0.2 ml/kg protected calves against 1/10, 000 but not against...

Author(s)
Tican, V.
Citation
Lucr. Inst. Cerc. vet. Bioprep. Pasteur, 1966, 3, 1, pp 27-39 pp.
Abstract

The bulletin contains the following brief papers (in Russian) on foot and mouth disease, by A. I. Lebedev, V. S. Avilov, I. E. Skorin and their colleagues: Antigenic properties of the epidemic A22 strain of F & M disease virus (p. 27-28); Duration of immunity in cattle inoculated with...

Citation
Byulleten' Vsesoyuznogo Instituta Eksperimental'noi Vet., 1968, 4, pp 94 pp.
Abstract

Strain Ai was isolated during an epidemic in Transcaucasia in 1964. Cattle immunized with type A, strain 103 (variant A7) were not fully immune to strain Ai. Complement fixation tests and cross-infection experiments on g.pigs showed that Ai was a new variant, differing from standard type A variant...

Author(s)
Larda, P. N.; Salazhov, E. L.; Antonyuk, V. P.
Publisher
Moscow,
Citation
Veterinariya, 1966, 1, pp 20-22 pp.

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