There have been 10 cases of coronavirus confirmed in North East and Yorkshire.
The Department of Health has released figures for each NHS region after the total number of Covid-19 cases in the UK rose to 115 with 105 of them in England.
Of those 10, one from Newcastle was confirmed by health authorities on Wednesday.
Professor Chris Whitty, chief medical officer, said on Thursday: "As of 9am this morning, 25 further patients in England have tested positive for Covid-19.
"Seventeen were diagnosed who had recently travelled from recognised countries or from recognised clusters which were under investigation.
"Eight contracted the virus in the UK and it is not yet clear whether they contracted it directly or indirectly from an individual who had recently returned from abroad.
"This is being investigated and contact tracing has begun."
As of 9am on Wednesday, a total of 18,083 people have been tested in the UK with 115 positive and 17,968 negative.
Cases in England by NHS region
East of England - 8
London - 25
Midlands - 9
North East and Yorkshire - 10
North West - 17
South East - 17
South West - 15
To be determined - 4
