Johns Hopkins ABX Guide
- Walking pneumonia
- Warts, common
- Warts, genital
- Warts (non genital)
- WC - Whooping cough
- WD - Whipple's disease
- Weil's disease
- Western equine encephalitis
- Western equine encephalitis virus
- West Nile Virus
- West-Siberian tick-borne encephalitis
- Wheezy bronchitis
- Whipple's arthralgia
- Whipple's disease
- Whooping cough
- WinRho
- WN - West Nile fever
- Wound infection
- Wuchereria bancrofti