State Health Commissioner Jan Malcolm says Minnesotans with compromised immune systems should check with their health care provider in a few days about whether a third dose of the Pfizer or Moderna vaccine could increase their protection against COVID.  Guidance from the federal government is expected soon on which patients might benefit.  Malcolm stresses: “There are plenty of vaccine doses already here in the state to vaccinate, give third doses to this eligible population, along with everyone else who’s eligible for first and second doses.” Federal officials say at this point a third, or what some call a “booster” shot, is not recommended for those who are not immuno-compromised.  Malcolm also notes that guidance could change at some point in the future.