Mine also has "or Clinic Site" on the same line. On the back mine has 09/03/20 as the date and this is from 08/17/20 so it could just be a different revision. Additionally this one has the HHS logo slightly cut off and the MI is below the C in CDC while on mine the MI is below the D. On the back the VAERS paragraph is worded differently. It's probably just a different revision but someone should find a real card with the 08/17/20 date to check against.
Mine also has "or Clinic Site" on the same line. On the back mine has 09/03/20 as the date and this is from 08/17/20 so it could just be a different revision. Additionally this one has the HHS logo slightly cut off and the MI is below the C in CDC while on mine the MI is below the D. On the back the VAERS paragraph is worded differently. It's probably just a different revision but someone should find a real card with the 08/17/20 date to check against.