1 During lysogenic cycle of viruses, the viral nucleic acid is integrated into the host cell genome. The viral DNA is directly incorporated into the host genome, while the viral RNA is converted into DNA that is further integrated into the host DNA.
2. Both diseases are caused by the same virus. However, chickenpox affects children and is a milder disease, while shingles is caused by the reactivation of the virus after the chickenpox symptoms disappeared.