Mouthwash maven Dr. Joseph Lister lent his name to this food-borne bacterium that pregnant women in particular should avoid. GIANTmicrobes(R) Original (5-7" plush doll) $8.95

Acidophilus (Lactobacillus acidophilus) Beer & Bread (Saccharomyces cerevisiae) Cavity (Streptococcus mutans) E. coli (Escherichia coli) Listeria (Listeria monocytogenes) Salmonella (Salmonella typhimurium) Yogurt (Lactobacillus bulgaricus)