Cytological and immunological responses to Babesia divergens in different hosts: ox, gerbil, man

A continuous in vitro culture system for Babesia divergens was initiated from a human isolate. It was maintained through 305 subcultures for 3 years using a low concentration of serum and a low haematocrit, with no decrease in the initial virulence. This in vitro system enabled the routine culture o...

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Published inParasitology research (1987) Vol. 77; no. 1; p. 3
Main Authors Gorenflot, A, Brasseur, P, Precigout, E, L'Hostis, M, Marchand, A, Schrevel, J
Format Journal Article
LanguageEnglish
Published Germany 1991
Subjects
Animals
Antibodies, Protozoan - biosynthesis
Babesia - cytology
Babesia - immunology
Babesia - ultrastructure
Babesiosis - immunology
Cattle
Cells, Cultured
Erythrocytes - parasitology
Erythrocytes - ultrastructure
Gerbillinae
Humans
Microscopy, Electron
Microscopy, Electron, Scanning
Precipitin Tests
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Summary:A continuous in vitro culture system for Babesia divergens was initiated from a human isolate. It was maintained through 305 subcultures for 3 years using a low concentration of serum and a low haematocrit, with no decrease in the initial virulence. This in vitro system enabled the routine culture of all human and bovine B. divergens isolates thus far tested, with a mean parasitaemia level of 30%-40%. Different cytological aspects observed in the same isolate by optical and electron microscopy were described in parasitized ox, gerbil and human erythrocytes. The sequence of B. divergens antibody responses was determined in man and ox, enabling the precise identification of major B. divergens antigens as candidates for vaccines.
ISSN:0932-0113
DOI:10.1007/BF00934377