Johns Hopkins ABX Guide
- Ulcer, foot, diabetes
- Ulcer, genital
- Ulceroglandular tularemia
- Unasyn
- Undulant fever
- Unipen
- Unspecified Boutonneuse fever
- Ureaplasma urealyticum
- Ureidopenicillin
- Uremic pericarditis
- Urethral chlamydia swab
- Urex
- URI
- URI, in returned traveler
- Urinary-catheter associated infection
- Urine chlamydia trachomatis test positive
- Urine screen for chlamydia
- URTI - Acute upper respiratory infection
- URTI - Viral upper respiratory tract infection