There is currently a national shortage of: azithromycin; gemifloxacin; erythromycin (0.5%) ophthalmic ointment; STI diagnostic test kits and laboratory supplies. CDC DSTDP has received recent reports from CDC-funded STD programs, as well as public/private laboratories that some STI diagnostic testing supplies are becoming more readily available, but often at lower-than-normal order levels. See more information on CDC.gov.