Thirty two more people have been confirmed as having swine flu in the UK, bringing the total number of cases to 278, health officials said yesterday.

Nicola Sturgeon, the Scottish health secretary confirmed twenty three new cases in Scotland, including a group of football fans who travelled together on a supporters' coach. Shortly afterwards, the Health Protection Agency confirmed nine new cases in England.

The largest batch of Scotland's confirmed cases was the group of Rangers fans who travelled from Dunoon in Argyll to Tannadice on 24 May.

The 11 fans and seven other people – six family members and a workmate – living in the small coastal town west of Glasgow have been told to stay at home and were given the anti-viral drug Tamiflu.

Two brothers aged 24 and 26 emerged as suspected cases on Saturday, but it is unclear whether they had the virus when they travelled to see Rangers play Dundee United at Tannadice on 24 May, when they clinched the Scottish Premier League title.

The outbreak has since spread to two other fans who joined the coach, one other from the Argyll area and a second from Greater Glasgow and Clyde health board area, who has in turn passed the virus to a close family member.

About 180 pupils in the third year at Dunoon grammar school and nine teachers have been sent home and given Tamiflu as a precaution after a 13-year-old girl emerged as one of the new cases.

The Royal Bank of Scotland has closed its branch in Dunoon, where one of the new victims works.

A pupil at Eton who returned to Edinburgh after the school closed last Thursday when swine flu emerged there has also been diagnosed with the virus.

Their cases are amongst 23 new cases of swine flu in Scotland which were confirmed today. Health Protection Scotland is trying to trace the source of the virus, but has not yet found a travel-related link or a contact with a confirmed case of swine flu.

This suspected outbreak mirrors the cluster of cases in Glasgow centred around a 37-year-old Sikh man who has been in an isolation ward at the Victoria infirmary in Glasgow for 12 days with a serious respiratory problems.

Nicola Sturgeon, the Scottish health secretary, said that his 13-year-old son and a five-year-old neighbour had become confirmed cases. The man's wife and another of their children were confirmed with swine flu last week. The result of tests on a third child are not yet known.

In Birmingham, children affected by the largest swine flu outbreak so far returned to school this morning. The cluster affected 79 people connected to Welford primary school in Handsworth.