Which of the following bacteria are acid fast-
|D||All of the above|
a. Nocardia are acid fast with 1% sulphuric acid.
b. They are described actually as partially acid fast as the strict definition of acid fast structures are those which retain the primary stain with 20% sulfuric acid like Mycobacterium tuberculosis, M.avium, M. kansasii.
c. Actinomyces and Streptomyces are not acid fast.
d. Other acid fast structures- oocysts of Isospora, Cyclospora and Cryptosporidium.
e. Other acid fast structures-Rhodococcus, Legionella micdacei, spermatic head and bacterial spores