Infectious Disease
Lessons
Illustrated, high-yield walkthroughs of the infectious disease concepts the boards test most.
A board-focused map of antibiotics organized by target — cell wall, ribosome, nucleic acid, folate, and membrane — with the bactericidal/bacteriostatic split, spectrum pearls (MRSA, Pseudomonas, atypicals, anaerobes), and the signature toxicities examiners love to test.
A boards-focused walkthrough of HIV/AIDS: virology and transmission, the CDC antigen/antibody diagnostic algorithm and window period, CD4-based opportunistic-infection staging, and modern antiretroviral therapy — with high-yield vignettes and next-best-step decisions.
A Step 2 CK–focused sepsis lesson covering Sepsis-3 definitions, the Hour-1 bundle, and exposure-driven organism/treatment reasoning, anchored by neutropenic-fever and septic-shock next-best-step vignettes. Emphasizes cultures-before-antibiotics, norepinephrine-first pressor management, and classic buzzwords (asplenia/OPSI, Vibrio, meningococcemia, toxic shock).
A Step 2 CK–focused lesson on healthcare-associated infections covering CLABSI, CAUTI, VAP/HAP, SSI, and C. difficile — organism, exposure clue, and next-best-step management for each, with board vignettes and current IDSA guidance. Emphasizes source control plus syndrome-tailored empiric coverage and the 2021 IDSA/SHEA update making fidaxomicin the preferred agent (oral vancomycin an acceptable alternative) for C. difficile.
A boards-focused Step 2 CK lesson on fever of unknown origin: the Petersdorf/Durack definitions and four etiologic buckets, exposure-driven organism matching, and next-best-step decisions anchored by classic vignettes (giant cell arteritis, adult-onset Still disease) and the staged diagnostic ladder ending in FDG-PET/CT and directed biopsy.
A boards-focused tour of the classic tick-borne infections — mapping vector, geography, and buzzword presentation to the next-best diagnostic and treatment step, anchored by the rule that doxycycline covers everything except Babesia.
A high-yield board review of malaria in the returning traveler — Plasmodium species and their exposures, the classic paroxysm and smear findings, thick/thin smear diagnosis with parasitemia grading, IV artesunate for severe disease, and primaquine/tafenoquine radical cure (after G6PD testing) for vivax/ovale — plus travel chemoprophylaxis and must-not-miss febrile differentials (typhoid, dengue).
A boards-focused walkthrough of skin & soft-tissue infections: the purulent-vs-nonpurulent and severity framework, exposure-specific organisms, classic buzzwords, and the next-best-step decisions — especially recognizing necrotizing fasciitis and choosing I&D versus antibiotics.
Sample flashcards
Salmonella typhi features?
Babesiosis features?
Most common cause of peritonsillar abscess?
Bacterial meningitis CSF profile?
Most common cause of genital ulcer in US?
Best initial test for sepsis?
FAQ
What's covered in the Infectious Disease topic?
Infectious Disease covers high-yield mechanisms, clinical presentations, diagnostic workup, and management — drawn from First Aid, Pathoma, and the NBME content outline.
How many practice questions does Infectious Disease have?
1 board-style multiple-choice questions and 101 spaced-repetition flashcards. Sign up free to drill them with adaptive difficulty and a Socratic AI tutor that explains every wrong answer.
Is Infectious Disease on USMLE Step 1 or Step 2 CK?
Infectious Disease appears on both Step 1 (foundational mechanisms) and Step 2 CK (clinical decision-making). Our questions are tagged by exam target so you can filter to just the Step you're studying.
Drill Infectious Disease on every exam-target.
1 questions + 101 flashcards waiting. Adaptive, spaced-repetition, with a Socratic AI tutor that explains every miss in plain English.
Start studying free