varicella
Pronunciation: var-ih-SEL-ah
Primary infection with varicella-zoster virus causing characteristic vesicular rash, commonly known as chickenpox.
Full Definition
Varicella is the primary infection caused by varicella-zoster virus (VZV), typically occurring in childhood and characterized by a distinctive vesicular rash. The condition begins with a prodrome of fever and malaise, followed by the appearance of pruritic vesicles that progress through papular, vesicular, and crusted stages. Lesions appear in crops and are present in various stages simultaneously. While generally mild in healthy children, varicella can cause serious complications in immunocompromised patients, pregnant women, and neonates.
Usage
Usage note: Use 'varicella' in medical documentation; 'chickenpox' acceptable for patient communication.
In Context
- "Varicella was diagnosed based on the characteristic vesicular rash in various stages of healing." — Pediatric clinic note
- "Varicella vaccination has dramatically reduced the incidence of chickenpox in children." — Immunization report