Put this on the list of stuff I kind of already figured: Vaccines won’t protect millions of patients with weakened immune systems.

It’s unclear how many immunocompromised people don’t respond to coronavirus vaccines. But the list seems at least to include survivors of blood cancers, organ transplant recipients, and anyone who takes the widely used drug Rituxan, or the cancer drugs Gazyva or Imbruvica — all of which kill or block B cells, the immune cells that churn out antibodies…

I’m not parading around French-kissing strangers, but I’m obviously going to keep wearing a mask until I see that my white blood cell count is back up.