The Public Health Service expects to know tomorrow whether there has been a further case of salmonella in Hobart, Tasmania.

Director of Public Health Roscoe Taylor says two groups of people were reported with possible symptoms of salmonella on Friday. Two people were taken to hospital and a total of 25 people were reported with symptoms from both groups.

Dr Taylor says both groups involved catered functions and a possible link between them is being investigated. He says the two people in hospital are in a satisfactory condition.

Dr Taylor says a team has been working throughout the weekend to investigate the cases, and it is hoped the results of lab tests will be ready by tomorrow.