Thread by @MDbyOctober2022

Brucella
📝Undulant Fever/Malta Fever
📝MCC Manifestation
📌in animals: ABORTION
- d/t bacteria has inc affinity to animal placenta (has ERYTHRITOL)
📌in human: Signs of Inflammation (inc ESR), vomiting, diarrhea
📝Most Pathogenic: B. melitensis

#PLE2022 #Micro

Franciscella tularensis
📝transmitted via tick bite (Dermacentor occidentalis/Pacific Coast Tick)

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Yersinia pestis
📝Safety Pin appearance
📝 F1, V and W -major virulence factors

Pasteurella multocida
📝wound infections following dog or cat bites

Eikenella corrodens
📝human bites

#PLE2022 #Micro

Pathognomonic Lesions

📌Condyloma Lata: SYPHILIS
📌Condyloma Acuminata: HPV

Ocular Complication of Tertiary Syphilis:
📌Argyll-Robertson Pupil/Prostitute’s Eye
~accommodation reflex present
~pupillary reflex absent

#PLE2022 #Micro

📝NonTreponemal Tests (VDRL,RPR) - for screening and monitoring tx
~false positives due to V.D.R.L.
V-Viral inf
D-Drugs
R-Rheumatoid Arthritis
L-Lactating/Pregnant

📝Treponemal - confirmation
~false positive in Lupus and Lyme Dse

#PLE2022 #Micro

Chlamydia trachomatis
📝Type A-C: TRACHOMA (Halberstaedter Prowazek Inclusion Bodies)
📝Type D-K: non-gonococcal urethritis; neonatal pneumonia (staccato cough)
📝Type L1-L3: LGV (“groove sign” d/t integrity of the inguinal ligament)

#PLE2022 #Micro

Rickettsia Species

📌Q fever: only one w/o vector
📌Q fever: only one w/ chronic onset
📌Q fever: only one w/o rash
📌Q fever: has highest mortality

📌Endemic typhus: only one w/ gradual onset
📌Rickettsial Pox: only one with eschar

#PLE2022 #Micro