Is there a difference in how the vaccines are administered? ↓

Not at the time of injection. There are a few differences in administration: Moderna and Pfizer require two doses to be effective (administered 28 days for Moderna vs. 21 days for Pfizer) while Johnson & Johnson/Janssen only requires a single dose. For two-dose vaccines, ZIKS Family Pharmacy ensures customers receive the same type of vaccine at the correct interval when they are automatically scheduled for their second appointment.