Mode; airborne droplets

Incubation 14-16d

infectivitiy; 1-2d before until all lesions crusted

vaccine, live attenuated

funded for certain groups; organ transplantation;risk of immunosupression; HIV; contacts fo immunosupressed

highly effecgive

post exposure prophylaxis:

• ZIG most effective ASAP; up to 10d

• vaccine if within 5d of exposure

congenital varicella

• rare

• early

• late = severe neonatal varicella

• sequela

  • skin scars

  • eye abnormal

  • limb abnormal

  • IUGR/low birthweight/prem

  • cortical atrophy

  • poor sphincter control