Two wards at norovirus-hit New Cross Hospital have got the all-clear as bosses get the outbreak under control.
Another two wards, dementia and trauma and orthopaedics, remain affected by the virus, with restrictions in place.
A closed bay on the dementia ward was due to reopen today, while the trauma and orthopaedic ward should fully reopen at the weekend.
Bosses at New Cross said none of the patients or staff affected by the infection were seriously ill.
Staff with symptoms have been told not to go to work until they have been symptom-free for 48 hours, while visiting times for relatives have been restricted.
Dr Mike Cooper, director of infection prevention and control for Royal Wolverhampton NHS Trust, said: "We hope that patients, relatives and carers understand the reasons for this restriction.
"Scrupulous hand hygiene by all staff and visitors and a high level of environmental cleanliness are the essential measures for controlling this bug."