Which of the following is true of chicken pox ?
Ans. is 'a' i.e., Virus not found in scab The fluid of vesicle of chickenpox contains virus during first 3 days of illness, but scab is noninfective. About other options Option b VZV does not grow in experimental animal or chick embryo. It can be grown in tissue culture cell lines ---> Human fibroblast, hela cells, vero cells. o Option c VZV is a DNA virus. o Option d VZV can cross placenta and infect the fetus.
Virus not found in scab
Virus can be grown on the chick embryo
Caused by RNA virus
Does not cross the placental barrier