Eight different treatment groups were formed : group 1 , 60 patients receiving Saccharomyces boulardii ; group 2 , 60 patients receiving zinc ; group 3 , 60 patients receiving lactose-free formula ; group 4 , 60 patients receiving S. boulardii plus zinc ; group 5 , 60 patients receiving S. boulardii plus lactose-free formula ; group 6 , 60 patients receiving zinc plus lactose-free formula ; group 7 , 60 patients receiving S. boulardii plus zinc plus lactose-free formula ; group 8 , 60 patients receiving only oral and/or parenteral rehydration solutions .
