swap from Tysabri to Gilenya

Hi. I’ve not posted on here for years - so hope I’m doing this right. I’ve been on Tysabri for two years - I’m JC positive. I do worry about PML. I’m seriously thinking of moving to Gilenya. Has anyone made the change and how has it been? Thank you

The Barts & London covered this subject on their blog recently and worth reading.