Varicella-Zoster virus (VZV)
Aka ChickenPox, Shingles (reactivation)
WHO stage 2 condition in HIV
Risk to pregnant woman (10% get pneumonia) and to fetus.
If contact with chicken pox, check serology.
If non-immune, can administer varicella-zoster immune globulin up to 10 days post-contact.
Aciclovir for the disease, not contact.