KSAT 12: Is there a time limit to get your second Pfizer or Moderna shot?

Dr. Ruth Berggren, Infectious Diseases/Center for Medical Humanities and Ethics, participated in a KSAT 12 news story on the question of a time limit for getting the second Pfizer or Moderna shot, even if you are past the 21- or 28-day limit for second doses.

Watch the story.

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