Hi @Lela and welcome to Ung med MS!
They have posponed almost all Mabthera infusions due to Covid-19. There is quite a lot written about this (in Swedush) in the Corona-thread: https://ungmedms.com/topic/coronaviruset/
I reccomend google translating it if you need to: https://translate.google.com/translate?hl=en&sl=sv&tl=en&u=https%3A%2F%2Fungmedms.com%2Ftopic%2Fcoronaviruset%2F

A short summary is that Mabthera has been proven to have a long term protection lasting much longer than the standard 6 month infusion interval. That’s why they have changed the infusion frequency, at least temporary.

If you feel worried, just call the clinic and remember that we’re always here for you as well. 🙂