Ice Cream Induces Illness - McDonald's, Marmande Nouvelle-Aquitaine

Route Nationale 113, Marmande, 47200 Nouvelle-Aquitaine, France

About 45 min after the meal (Big Mac fries mc flurry) my 14 year old daughter vomited and is still feeling nauseous.
We think of ice cream because her 10-year-old sister is sick too (nausea, stomach cramps)
The others who ate other burgers, including 1 Big Mac without ice cream for dessert, are not in principle ill at the moment. | Symptoms: Nausea, Vomiting, Cramps