When people who have been treated for Lyme disease recover but later come down with its symptoms again, is the illness a relapse or a new infection?
The question has lingered for years. Now, a new study finds that repeat symptoms are from new infections, not from relapses.
The results challenge the notion, strongly held by some patients and advocacy groups, that Lyme disease, a bacterial infection, has a tendency to resist the usual antibiotic treatment and turn into a chronic illness that requires months or even years of antibiotic therapy.
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