The potential scope of the meningitis outbreak that has killed at least five people widened dramatically Thursday as health officials warned that hundreds, perhaps thousands, of patients who got steroid back injections in 23 states could be at risk.
Clinics and medical centers rushed to contact patients who may have received the apparently fungus-contaminated shots. And the Food and Drug Administration urged doctors not to use any products at all from the Massachusetts pharmacy that supplied the suspect steroid solution.
It is not clear how many patients received tainted injections, or even whether everyone who got one will get sick.
So far, 35 people in six states — Tennessee, Virginia, Maryland, Florida, North Carolina and Indiana — have contracted fungal meningitis, and five of them have died, according to the Centers for Disease Control and Prevention. All had received steroid shots for back pain, a highly common treatment.