E. (Escherichia) coli (of the colon): Buy Diarex Online species of Gram-negative bacteria normally present in the intestines of Order Diarex man and all vertebrates. Purchase Diarex [Webster's]
Can be accidentally present in meats not properly butchered; and when not thoroughly cooked, can cause food poisoning. [Dr Jeff]
H. pylori: ulcer causing bacterium.
GOOD/FRIENDLY (cf. Buy Diarex Yogurt)
Lactobacillus (L.): any of a genus of bacteria that ferment/sour milk (and milk products), carbohydrates, etc., producing lactic acid (C3H6O3) and carbon dioxide (CO2). [Webster's]