PMC3272546_01
Epidemic curve of Mycobacterium abscessus infections following trigger point injection and/or epidural block. The mean incubation time was 5.5 days (range 1 to 15 days).. TPI, trigger point injection, EB, epidural block.. *Index case presented with a skin lesion about two weeks after having a TPI and an EB in mid-October 2008;  The local clinic was closed;  First patient was reported;  A formal epidemiological study was initiated;  The physician at the clinic in Hadong-gun was interviewed. 22 environmental specimens were collected from the clinic.
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F1
TPIs and/or EBs between 1 July 2008 and 28 February 2009 subsequently had skin lesions or abscesses at the injection sites. The outbreak ceased at the end of February 2009 due to the closure of the clinic (Figure 1).