Most Common Flashcards
Most common cause of septic arthritis
Staphylococcus aureus
[also says that N.gonorrhea is the most common cause of septic arthritis in sexually active adults]
Most common cause of osteomyelitis
Staphylococcus aureus
Most common cause of endocarditis of artificial heart valves
Staphylococcus epidermidis
1 cause of meningitis in neonates
Streptococcus agalactiae (group B strep)
1 cause of community-acquired pneumonia
Streptococcus pneumoniae
Most common bacterial cause of meningitis, otitis media, pneumonia, and sinusitis
Streptococcus pneumoniae (MOPS mneumonic)
Which is more common, Enterococcus faecium or Enterococcus faecalis?
E. faecalis
Most common illness associated with Klebsiella pneumoniae infection
UTI (often nosocomial, associated with foley catheter)
[note that UTI is also the most common illness associated with Serratia marcescens]
1 cause of osteomyelitis in patients with sickle cell disease
Salmonella typhi
1 cause of UTIs
Escherichia coli
1 cause of gram-negative nosocomial pneumonia
Pseudomonas aeruginosa
Leading cause of blindness worldwide
Chlamydia trachomatis (group A-C)
Most common bacterial STI
Chlamydia trachomatis (group D-K)
Most common cause of erysipelas
Strep pyogenes
Which is more common in the US, Shigella sonnei or Shigella dysenteriae?
Shigella sonnei
Most common cause of aseptic (nonbacterial) meningitis, with young children being the most susceptible
Enteroviruses (Picornaviridae family) - including poliovirus, coxsackie A and B, and echovirus
Most common Calicivirus (Caliciviridae)
Norovirus
Most common cause of sporadic encephalitis in USA
HSV type 1 (causes temporal lobe encephalitis)
Most common cause of sensorineural hearing loss in children
CMV (herpesviridae family)
1 cause of congenital viral infection
CMV (herpesviridae family)
Most common manifestation of CMV infection in AIDS patients vs. most common manifestation in non-immunosuppressed
AIDS pts = CMV retinitis
Non-immunosuppressed = CMV mononucleosis
Most common site of lesions associated with HHV-8, Kaposi’s sarcoma
Hard palate
Most common cause of tonsilitis and adenoiditis
Adenovirus (adenoviridae)
1 cause of liver transplants
Hepatitis C
1 cause of hepatocellular carcinoma
Hepatitis C
Most common cause of PNA and bronchiolitis in infants
Respiratory Syncytial Virus (RSV) of paramyxoviridae family
Most common cause of severe diarrhea in young children
Rotavirus (Reoviridae)
Most common cause of opportunistic mycoses
Candida albicans
Most common cause of fungal meningitis
Cryptococcus neoformans
Most common predisposing factor to mucormycetes fungal infection
Diabetic ketoacidosis
Most common involved site of amoebic liver abscess
Right lobe
Most commonly found organism in AIDS patients with diarrhea
Cryptosporidium
1 cause of preventable blindness in sub-Saharan Africa
Onchocerca volvulus parasitic infection
Most common prion disease of humans
CJD
