Extras: Microbio Flashcards
Opportunistic infections that affect HIV pts below 400, below 200, and below 50
Below 400: Tb
Below 200: P. Jiroveci, toxoplasma, cryptosporidium, candidiasis, cryptococcus neoformans
Below 50: MAC, CMV
Which bacteria uses IgA protease and is quellung-reaction positive?
Streptococcus pneumoniae
Which bacteria is the most common community acquired PNA + most common meningitis in children
Streptococcus pneumoniae
Mycoplasma vs mycobacterium
Mycoplasma: three bacteria without cell walls (m. pneumoniae, genitalium, and ureaplasma urealyticum)
Mycobacteria: three acid-fast bacilli (m. Tuberculosum, m. Leprae, MAC)
Three gram negative diplococci
N. Meningitidis, N. Gonorrhea, Moraxella catarrhalis
What bacterial sp causes dysentery?
Shigella
Bacteria that makes up 99% of gut flora
Bacteroides fragilis
Which bacterial sp is associated with Guillan-Barre syndrome?
C. Jejuni
Bacteria that causes epiglottitis
Haemophilus influenzae
Which bacteria from cats causes cellulitis, and which causes cat-scratch fever (with fever, malaise, lymphadenopathy) + bacillary angiomatosis
Cellulitis: pasteurella multocida
Cat scratch fever and bacillary angiomatosis: bartonella henselae
Only rickettsia that is Weil-Felix negative
Rickettsia akari
What shape are rickettsia?
Coccobacilli
Human erlichiosis
Just like Rocky Mountain spotted fever, but no rash
Early vs late disseminated Lyme dz
Early disseminated: neuropathy, Bell’s palsy, cardiac issues, joint issues
Late disseminated: chronic arthritis and encephalopathy
Neimann-Pick vs Gaucher cells
Niemann-Pick: foamy cytoplasm
Gaucher: crumpled tissue paper