A search for Cryptococcus neoformans in milk.

1. Yeasts from 22 samples of pooled raw milk were either fully identified or else screened for the presence ofCryptococcus neoformans. 2. C. neoformans was not recovered, but two strains ofCryptococcus albidus which would grow at 37°C. were isolated. 3. No lactose fermenting yeasts were found, and the proportion of lactose utilisers among the isolates was not great. 4. It seems most likely that the majority of the yeasts recovered were contaminants of the milk from soil or air.