The bacteria in yogurt are harmless to humans: They can’t cause infection. In another study, patients who took B infantis got a 20 to 25 % decline in symptoms compared to a those who took some other probiotic. Blue cheese also includes yeast, a sort of fungus, particularly Debaryomyces hansenii, Yarrowia lipolytica, Kluyveromyces marxianus, Kluyveromyces…