Literature DB >> 4211054

Studies on the E strain of Rickettsia prowazeki.

J Kazár, R Brezina, J Urvölgyi.   

Abstract

Cultivation of E strain of Rickettsia prowazeki in mouse lung resulted in a marked increase in virulence for guinea pigs following 12 passages (but not 6 passages) in both immunosuppressed and normal mice. Attempts at passaging E strain in normal guinea pigs were unsuccessful. Isolates of E strain in the chicken embryo yolk sac either from testes and peritoneal washings or from the brain of immunosuppressed guinea pigs did not show enhanced virulence for guinea pigs.

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Year:  1973        PMID： 4211054      PMCID： PMC2481156     

Source DB:  PubMed          Journal:  Bull World Health Organ        ISSN： 0042-9686            Impact factor:   9.408


  6 in total

1.  [Histological aspects of vaccinal processes and morphological evaluation of immunity in guinea pigs infected with Rickettsia prowazekii E].

Authors:  I N KOKORIN
Journal:  Vopr Virusol       Date:  1959 May-Jun

2.  STAINING RICKETTSIAE IN YOLK-SAC CULTURES.

Authors:  D F GIMENEZ
Journal:  Stain Technol       Date:  1964-05

3.  [On the susceptibility of Macacus rhesus monkeys to vaccinal strain E of Rickettsia prowazekii].

Authors:  N N URAKOV
Journal:  Vopr Virusol       Date:  1962 Mar-Apr

4.  [Morphological changes in the vascular walls of the guinea pig following the administration of Rickettsia prowazekii (strain E)].

Authors:  N A KOLESNIKOVA; N N KOCHETOV; N N URAKOV
Journal:  Vopr Virusol       Date:  1962 Mar-Apr

5.  The relative infectibility of laboratory animals and chick embryos with rickettsiae of murine or of epidemic typhus.

Authors:  J P FOX
Journal:  Am J Hyg       Date:  1949-05

6.  Study on the effect of cyclophosphamide on experimental rickettsial infection.

Authors:  J Kazãr; R Brezina; V Mayer
Journal:  Acta Virol       Date:  1971-11       Impact factor: 1.162
  6 in total
  5 in total

1.  Selection of alpha/beta interferon- and gamma interferon-resistant rickettsiae by passage of Rickettsia prowazekii in L929 cells.

Authors:  J Turco; H H Winkler
Journal:  Infect Immun       Date:  1990-10       Impact factor: 3.441

2.  Comparison of properties of virulent, avirulent, and interferon-resistant Rickettsia prowazekii strains.

Authors:  J Turco; H H Winkler
Journal:  Infect Immun       Date:  1991-05       Impact factor: 3.441

Review 3.  Control of rickettsial diseases.

Authors:  J Kazár; R Brezina
Journal:  Eur J Epidemiol       Date:  1991-05       Impact factor: 8.082

4.  Isolation of Rickettsia prowazekii with reduced sensitivity to gamma interferon.

Authors:  J Turco; H H Winkler
Journal:  Infect Immun       Date:  1989-06       Impact factor: 3.441

5.  Biochemical characteristics of typhus group rickettsiae with special attention to the Rickettsia prowazekii strains isolated from flying squirrels.

Authors:  G A Dasch; J R Samms; E Weiss
Journal:  Infect Immun       Date:  1978-02       Impact factor: 3.441
  5 in total

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