SINGAPORE - Two patients from Singapore General Hospital who had tested positive for hepatitis C have been confirmed part of the affected cluster, bringing the total number of affected patients to 25.

In a statement released on Monday (Oct 26), ProfessorFong Kok Yong, chairman of the Singapore General Hospital medical board, said: "Phylogenetic studies done for the two patients who were tested positive as announced on Oct 23 showed that they are part of the affected cluster, bringing the total number of affected patients to 25.

"The patients were admitted to Wards 64A and 67 from April to June 2015.

"We will provide the patients and their family with our full support and ensure that the patients receive timely and appropriate care."

The Singapore General Hospital said it has screened 601 patients, of whom 586 tested negative and three positive as announced earlier.

It added that all have been informed.

Pending still are 12 results.

A total of 309 staff have been screened. They all tested negative.