Immunizations are complete or immunizations are completed

A more technical answer compared the top-level comment:

X is complete suggests more that something is entire and every object is included. See "My list is complete," meaning that everything I want on my list is actually on the list.

X is completed suggests that a task has be executed to "completion," à la, "I completed the job."

However, these are entirely pedantic definitions. You often hear/see people say "The job is complete." even though they mean the job has been finished.

If the immunizations were completed then they have been taken to the end of the procedure of immunization and they are therefore complete immunizations, that is to say made thouroughly; if they are complete, then, necessarily, the procedures for performing them have been completed. Therefore both statements are equivalent as far as the outcome. You can use the past tense tense, also.

• Hixxx, I got the information that children without completed immunizations will not be able to start school. I'd like to know if my kid's immunizations were complete or not."