Health officials say four more people have died in the national meningitis outbreak, bringing the number of deaths to 19.
The deaths are among the 247 people in 15 states sickened in the outbreak, which has been tied to steroid shots for back pain. Most have a rare fungal form of meningitis. Two have joint infections.
Federal officials are investigating the New England Compounding Center in Framingham as the source of the tainted medicine.
MORE: 13K received suspect steroid shots; risk uncertain
MORE: CDC.gov Multistate Meningitis Outbreak Investigation
MORE: CDC Multi-State Meningitis Outbreak Current Case Count (map)
MORE: CDC: 105 steroid-related meningitis cases, 8 deaths
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The CDC also said test results so far show infections with three kinds of fungus. Most were a form of black mold.
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