Figure 1. Case reports of nontuberculous mycobacteria in patients using antitumor necrosis factor-α (TNF-α) therapy, US Food and Drug Administration MedWatch database, 1999–2006. Cases are reported by each full year of data reporting for each anti-TNF agent. Reported cases for all agents were most numerous in 2005. INF, infliximab; ADA, adalimumab; ETN, etanercept.