Your child's vaccination has already been delayed by a month and since this Covid virus is going to be there with us for long , nobody knows when the lockdown will be completely lifted.  So select a date , get a prior appointment to avoid crowd, and get the child vaccinated at the earliest, taking proper precaution.

Vaccination on time is always the best option. But slight delay for unforeseen circumstances is acceptable.

Vaccination Should not be postponed, as the situation is going to worsen though the lockdown will be relaxed , MMR is a very important vaccine having role in Corona Prevention indirectly.

All vaccines are for prevention of communicable infectious diseases,  which occur because of contact with infected persons.  At 15 months the vaccines die are for MMR and chickenpox,  the risk for both is negligible in the lockdown period.  Do don't worry,  just wait for conditions to be safe for clinic visit. There will be no loss of immunity once the next dose is received

It is better to get the vaccination done at the earliest since this COVID is going to be here for long.A delay of 2 to 3weeks is acceptable. Avail of nearest health facility.Go out with proper precautions,avoid rush.

Vaccination can be given to child once the lock down period is over . Usually this dose of vaccination can be delayed for a month no issue With regards to the time