varicella zoster

chickenpox

Headline
Etiology Transmission via direct contact or resp droplet

Timeline:
1o viraemic phase - day 1-3
Rash - around day 9
Incubation 14 days
Infectious until all lesions crusted over
Epidemiology
Clinical presentation vesicular rash
Pathogenesis
Diagnostic investigations Clinical diagnosis
Management Look for complications
Oral aciclovir for adults within 24h of rash onset, especially if at risk of complications
Public health - treat as infections from 24h before onset of rash until all lesions crusted over

Ocular zoster

  • lesions on tip of nose = Hutchinson's sign