[Mycoplasma as a contaminant of cell cultures maintained in laboratories of private and official institutions] (original) (raw)

Revista de saúde pública, 1989

Abstract

Mycoplasma is one of the most serious contaminants of cell cultures. Its detection is very important in virology, as well as its eradication. The aim of this study was to verify the incidence of mycoplasma in cell lines maintained in seven laboratories of private, government and college institutions of the State of São Paulo, Brazil, for the purposes of research, production of reagents for diagnosis and production of biologicals for human and animal use. Of the 29 cell lines, eight were derived from human tissues and 21 from other animal species (dog, rabbit, mouse, hamster, monkey, pig, chicken and ox). Using the direct method with specific liquid and solid media for detection of mycoplasma, 48 out of the 106 cell samples tested were positive, corresponding to a contamination index of 45.28%. The incidence of contamination among the 35 cell samples of human origin was 51.43% (18 positive). Of the 71 samples originated from other species, 30 were positive (42.25%). The high incidenc...

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