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Microbio:CommonCause
USMLE Step 1
| Pathology | Bug |
|---|---|
| Exudative tonsillitis | viruse (#1 is EBV) |
| Rhinitis | rhinovirus |
| Acute sinusitis | viruse, eg Strept pneumoniae |
| Otitis media | Streptococcus pneumoniae & Hemophilus influenzae |
| Malignant otitis externa | Pseudomonas aeruginosa |
| Acute bronchitis | rhinovirus |
| Nosocomial (hospital acquired pneumonia) | E. Coli |
| ICU pneumonia | Pseudomonas aeruginosa |
| Atypical pneumonia | Mycoplasma pneumoniae |
| UTI | Escherichia Coli |
| Infection in burn patients | Pseudomonas aeruginosa |
| Bacterial meningitis in neonate | E. coli, Streptococcus agalactiae, Listeria monocytogenes, *note also haemophilus influenzae type B if NOT VACCINATED w/ Hib vaccine!!!* |
| Bacterial meningitis in child | Neisseria meningitidis |
| Bacterial meningitis in adult | Streptococcus pneumoniae |
| Bacterial meningitis in immunocompromised | Streptococcus pneumoniae |
| Aseptic meningitis in summer | enteroviruse, eg echovirus |
| Aseptic meningitis in winter/spring | mumps virus |
| Diarrhea: Acute Infectious in adult | Norwalk virus |
| Diarrhea: Acute Infectious in children | Rotavirus |
| Diarrhea: Acute Infectious that is bldy | Campylobacter jejuni |
| Diarrhea: Acute Infectious that is parasitic | Entamoeba histolytica, in US |
| Diarrhea: Chronic Infectious | Giardia lamblia, in US |
| Diarrhea: + stool WBCs | Campylobacter jejuni |
| Diarrhea: - stool WBCs | Norwalk virus & Rotavirus |
| Diarrhea: Food assoc | Salmonella enteritidis, in US |
| Nursing home pneumonia | Klebsiella pneumoniae |
| Community-acquired pneumonia | Streptococcus pneumoniae |