Due to limited supply of the vaccine, a pharmacy may have to cancel your appointment if they do not have the vaccine in stock as they hoped when they originally scheduled it. Most pharmacies are calling customers back when they have their next vaccine delivery. 

You should expect to receive your second dose in the same location as your first. Due to limited supply, it may not be exactly at 21 or 28 days. It may be closer to 42 days. Some sites may not make second dose appointments in advance. Others may need to cancel an appointment if supply is not available, and let you know how it will contact you when supply becomes available again. However, if you are able to find your second dose at a different location, sooner than from the original location, you should take it. You need to make sure you are getting the same type of vaccine (Pfizer or Moderna). As vaccine supply increases, you should be able to get your second dose more easily from a variety of sources.

For more information on second doses, visit: de.gov/seconddose