Pfizer Covid Vaccine Lot Number Check. Use the select location dropdown to view inventory for a particular location. We do not have reliable information about standard lot size, but news articles indicate an average lot size of 1000 vials (approx.

Do not use the paa number in the lot number field. We do not have reliable information about standard lot size, but news articles indicate an average lot size of 1000 vials (approx. The standard cdc card includes an official cdc seal, the person's name, the date of their vaccination, lot numbers, and the site where they received the vaccine.