About 70% of persons with ARS have sore throat, fever (over 101), and skin
rash (all three),
and probably around 90% have at least one of these. Diarrhea
and other gastrointestinal symptoms can occur, but rarely as the most prominent symptoms. Seven days is early for ARS onset -- maybe possible, but generally it's 10-14 days. Finally, ARS typically lasts 1-2 weeks; 48 hr is definitely too short.