<prompt> Which of the following is true of chicken pox -Virus not found in scabVirus can be grown on the chick embryoCaused by RNA virusDoes not cross the placental barrier  <response>: The fluid of vesicle of chickenpox contains virus during the first 3 days of illness, but scab is no infective.About other optionsOption bVZV does not grow in an experimental animal or chick embryo.It can be grown in tissue culture cell lines Human fibroblast, HeLa cells, Vero cells.Option cVZV is a DNA virus.Option dVZV can cross the placenta and infect the fetus.The baby may develop two types of complications depending on the period of gestation:- 