The news is full of reports on the Meningitis outbreak caused by tainted steroid injections used for treatment of back pain. Fortunately, none of this is in Arizona. The infection is a fungus (germ) that was present in the steroid material used for epidural steroid injections to relieve back pain and sciatic (nerve pain down the leg).
For more information, the CDC is tracking data and providing the latest information, as well as researching the outbreak.
http://www.cdc.gov/HAI/outbreaks/meningitis.html