South African Natalie Du Toit,who competed in the open water swim in the Olympics a few weeks ago, just earned her first gold medal of Paralympic Games. She is expected to win a few more by the time the games are over. The medal came in the 100M butterfly. She set a world record with her time.
The above link also recaps other events at the Paralympic Games which began this past weekend.
The US Paralympic team seems to be just as dominant as the US Olympic swimming team. The US won four gold medals in the first day of the meet.