The 31-year-old says she wasn't "very sick" but was unable to train. Rissveds estimates she missed "at least a month of build-up training."
The focus has been on rest and recovery.
Despite the illness, she is ready for the World Cup premiere in South Korea next week.
It's not the first time I've encountered obstacles. I know I can get into good shape in a short time. It's not optimal but you just have to accept it.
After I recovered at the end of February, things have gone well and there have been no problems since then.
