ADSL and bacterial infectious disease: For example, 67Ga-citrate binds to bacteria, but it does not discriminate between bacterial infections and proteins that accumulate at sites of inflammation.11,12 Similarly, 99mTc-labeled compounds have been used to label leukocytes for infection/inflammation imaging; however, these have been shown to be non-specific for bacterial infections.13,14 The use of radiolabeled antibiotics such as ciprofloxacin and kanamycin has also suffered from a lack of specificity to date.15 Radiolabeled AMPs, such as ubiquicidin, human lactoferrin, and human β-defensin-3, also appear promising.15