| Term | Definition |
| streptococcus pyogenes | strep throat, rheumatic fever, scarlet fever, rheumatoid arthritis, and heart failure |
| Streptococcus pneumonia | pneumonia, and middle ear infection |
| streptococcus mutans | tooth decay |
| staphlococcus aureus | carbuncles, boilds, abscesses, scaelded skin syndrome , food poisoning |
| staphylococcus epidermidis | infection in people with indwelling devices |
| bacillus anthracis | anthrax |
| bacillus cerus | exotoxin food poisoning |
| clostridium tetani | tetanus |
| clostridium perfringens | gas gangrene, food poisoning |
| clostridium botulinum | botulisim anaerobic food poisoning |
| corynebacterim diphtheriae | diphtheria, can be prevented by the D portion of DTP vaccine |
| listeria monocytogenes | meningitis in renal transplant and cancer patients |
| neisseria gonorrhea | diolococcus, causing STD gonorrhea |
| neisseria menigitidis | meningitis |