What is the schedule for receiving the Varicella vaccine?

The correct schedule for receiving the Varicella vaccine is a two-dose series, with the second dose typically administered 28 days after the first dose. This timing is crucial for ensuring maximum efficacy and long-lasting immunity against the varicella-zoster virus, which causes chickenpox. The vaccine is most effective when the doses are spaced appropriately.

The other options do not align with the established guidelines for the Varicella vaccination schedule. A single dose would not provide sufficient immunity, as the complete vaccination series is necessary for full protection. The choice of day 0 and 14 does not meet the spacing requirement outlined in vaccination protocols, where a 28-day interval is recommended between doses. The option of 2 doses at 6 months apart goes beyond the recommended timeframe and would not adhere to the vaccination schedule established by health authorities. Therefore, the correct answer highlights the importance of following the recommended interval of 28 days between doses to achieve optimal immunization.