There were fears that the actress, who plays unlucky-in-love Eileen Grimshaw, may have caught the bug during the making of a TV documentary in Bangladesh slums in Mombassa.
But after emergency tests and spending a day-and-a-half in hospital, doctors ruled out the potentially fatal disease.
Sue, 47, is now recovering at home, surrounded by get-well cards and flowers sent by concerned cast members. It is not known when she will be well enough to return to the soap.
A show source said: “No one really knows what’s wrong with Sue, but she’s been feeling very ill. It started pretty much as soon as she got back from Kenya.
“Obviously serious alarm bells start ringing when you come back from Africa feeling unwell because you hear so many horror stories about people contracting diseases out there.”
Sue was in Kenya with soap co-stars Brooke Vincent (Sophie Webster), Ryan Thomas (Jason Grimshaw) and Ben Price (Nick Tilsley) to film a documentary called Corrie Goes To Kenya.
Due to air later this month, the programme filmed the stars visiting local tribes still struggling after last year’s famine. They were also there to raise awareness of HIV and AIDS.