Re: Fites control
Deb King in Sacramento CA asks:
>>Does anyone know where to get Fite's control tissue, or premade slides? Two
vendors have put our company on a waiting list with no known time frame of
getting some. Is there a different organism that can be used for control
tissue that would be easier to get at this point?<<
I suppose that paraffin blocks of tissue containing Mycobacterium leprae (the
etiologic agent of Hansen's disease, or leprosy) are wanted for the
Fite-Faraco modification of the traditional light microscopic acid-fast stain.
Myco. leprae does not have exactly the same staining characteristics as Myco.
tuberculosis and other pathogenic mycobacteria, and a separate control is
preferable.
Experimentally, armadillos (Dasypus novemcinctus) can be infected with this
organism, and their livers contain vast numbers of acid-fast bacilli. Given
that one armadillo with such tzuriss could supply the world's histologists
till kingdom come, I would suppose that this would be the way to go to get
control tissue. Anybody on Histonet know?
Bob Richmond
Samurai Pathologist
(with tzuriss - waiting out Hurricanes Iris and Jerry in Cayman)
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