Varicella zoster

Question 1

is an HHV that infects how many percent of adults?

Answer 1

98%

Question 2

percent of occurence of age group

Answer 2

Without immuniza- tion,90%o casesoccurinchildren<10years, <5% in persons older than 15 years

Question 3

Transmission

Answer 3

contact and air

Patients are contagious several days
be ore varicella exanthem appears and until the last crop o vesicles.

Question 4

Lab

Answer 4

DFA
Tzank smear -giant and multinucleated acantholytic epidermal cells

serology
Dermatopathology- multinucleated giant epithelial cells indicating HSV-1, HSV-2, or VZV infection