Well, it was just a fairly qualified guess. Rebif is a older medication and mavenclad is fairly new. So most of the Rebif patients in Sweden are either fine on Rebif or have since long moved on to Tysabri or rituximab.

Most patients that get a MS diagnosis in Sweden start with Tysabri, mavenclad or rituximab. Rebif, Avonex etc are not that common anymore and have, as far as i know, been replaced with pill form drugs like Tecfidera.