Johns Hopkins ABX Guide
- Obiltoxaximab
- Occupational exposure to HIV
- Ocuflox
- Ocular Keratitis
- Ocular onchocerciasis
- Ocular syphilis
- Ocular toxocariasis
- Ocular toxoplasmosis
- Oculoglandular tularemia
- Ofloxacin
- OLM - ocular larval migrans
- Olysio
- Omadacycline
- ombitasvir/paritaprevir/ritonavir
- Omnicef
- Omnipen
- Omsk hemorrhagic fever virus
- Onchocerca
- Onchocerca volvulus
- Onychomycosis
- OPAT-outpatient antibiotic therapy
- OpenBiome
- Ophthalmic herpes zoster infection
- Opisthorchis
- OPV
- Oral Candidiasis
- Oral hairy leucoplakia
- Oral polio vaccine
- Orbital Cellulitis
- Orchitis
- Order Mucorales
- Orientia tsutsugamushi
- Oritavancin
- Ornidyl
- Oropouche fever
- Otalgia
- Other atypical mycobacteria
- Otitis externa
- Otitis media
- Otorrhea
- Outpatient antibiotic therapy (OPAT)
- Ovide
- Oxacillin sodium
- Oxamniquine
- Oxazolidinone - class of antibiotic
- Oxytetracycline
- Ozenoxacin