TABLE 1.

Induction of capsule growth by serum and CO2

StrainSerotypeInductionaReference or source
CO2No CO2
SerumPBSSerumPBS
H99A++/−+20
J4A++35
J8A++35
J11A+35
J20A+/−+35
J47A+/−35
I6B+++/−U. Banerjee (Dehli, India)
I23B++U. Banerjee
I24B+++U. Banerjee
102.97B++T. Mitchell (Durham, N.C.)
103.97B++++T. Mitchell
105.97B+++/−T. Mitchell
106.97C++T. Mitchell
107.97C++T. Mitchell
1343C++Ira Salkin (New York, N.Y.)
24067D+++26
3501D+/−+/−26
11D+/−+/−35
13D+++35
14D35
16D+/−+/−35
  • a Yeast were grown in Sabouraud medium and transferred to PBS in the presence or absence of 10% FCS and in the presence or absence of 10% CO2. Capsule size was determined after examining the cells in an India ink suspension. −, no induction; +/−, induction of 1 to 2 times, +, induction of >2 times.