The document discusses several types of bacteria including Streptococcus, Staphylococcus, Lactobacillus, Actinobacillus actinomycetemcomitans, Bacteroides, and Candida albicans. Key details provided include that Streptococcus are gram positive cocci, S. mutans causes dental caries, S. pyogenes exhibits beta hemolysis, and Candida albicans can grow in both yeast and filamentous forms.