If you’ve been reading for a while, you might remember some posts about nationwide shortages of drugs. The Food and Drug Administration was concerned, and so were very senior physicians working in infectious disease, cancer, everyday emergency medicine and even veterinary care.

The crisis faded from view, as they do. So it wasn’t much noticed that back in March, the American Academy of Pediatrics warned of an FDA alert over an apparent shortage of doxycycline, an old and inexpensive drug that is used mostly for uncomplicated infections such as sexually transmitted diseases and acne. It is also used, though, as the first treatment for a new case of Lyme disease — and that, more than anything, has sparked alarm.
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