He initially assumed it was a residual effect of the traveler 's diarrhea many people on the Peru trip had contracted while there .
In August 1995 , Farrar had fallen ill with nausea , vomiting , and diarrhea .
Farrar initially assumed it was a residual effect of the traveler 's diarrhea many people on the Peru trip had contracted while there .
In August 1995 , Farrar had fallen ill with nausea , vomiting , and diarrhea .