MP> a pneumococcus must be at least 16-mm. You can't do this test
MP> accurately on mixed culture streaks from direct specimens.
I agree, if your sole purpose is to confirm a strain as a pneumococcus,
and even with a good technique you can have problems once in a while.
But the optochin disc/tablet is very useful as a kind of selective media
for screening purposes.
Of course you have to keep the distinction between these two uses.
Yours
Hans Erik Busk
* RM 1.3 02496 * PFAA -> Peoples Front Against Acronyms
