Alaria americanus?

[Bert/Marie Tallant]

Friends in Oklahoma (a father and two grown children) are in the
University Med Center
in Oklahoma City infected with ?Alaraia americanus?  The CDC is there as
this seems to be extremely rare.  They contracted the parasite from
wading in a farm pond.  I have been unable to find any information on
this organism/disease.  Can anyone out there shed any light?

Many thanks,

Bert Tallant