This year the U.S. Food and Drug Administration welcomed back not just leeches, but also maggots. In January the FDA, in case number K033391, approved maggots for use as a medical device.
(Thanks to John Bradley for bringing this to our attention.)
AIR editorial board member Mark Benecke is a devotee of maggots. He has posted on his web site a plethora of useful information and photos about the lovable little critters.