Medical Microbiology and Immunology

, Volume 175, Issue 1, pp 55–60 | Cite as

Stability of thermolabile (LT) enterotoxin produced from enterotoxigenicEscherichia coli strains maintained in vitro

  • M. S. V. Gatti
  • M. B. Serafim
  • A. F. Pestana de Castro
  • A. R. Monteiro
Article

Abstract

The stability of thermolabile (LT) enterotoxin in 26 strains of porcine enterotoxigenicEscherichia coli (PETEC) belonging to serogroups 08 and 0149 was assayed by the passive immune hemolysis (PIH) test, over a period of 9 months at −70°C. It was found that the percentage of LT+ colonies (% LT+) and the mean value of hemoglobin release (¯XHb), could predict a change from LT+ to LT.

Keywords

Hemoglobin Release Immune Hemolysis 

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References

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Copyright information

© Springer-Verlag 1986

Authors and Affiliations

  • M. S. V. Gatti
    • 1
  • M. B. Serafim
    • 1
  • A. F. Pestana de Castro
    • 1
  • A. R. Monteiro
    • 1
  1. 1.Department of Microbiology and ImmunologyUniversity of CampinasCampinas, SPBrazil

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