7H9 becomes cloudy but nothing is growing in the sterility plates after 10 days of incubation, what coul it be?

I set up 10 subcultures of MTBC from frozen aliquotes. Two grew well and 8 became cloudy after 7 days in the incubator. I thought it was bacterial contamination so, I repeated the subcultures. The...

07 April 2016 8,256 7 View