A map has been released which shows the UK hotspots for the potentially deadly Aussie flu outbreak.
The illness has arrived in the UK after killing hundreds of people in Australia and Brits have been warned it could spark the worst flu outbreak in decades.
Ireland has seen fatalities caused by the flu and a map has now been released which reveals the hotspots in the UK.
The Aussie flu has strengthened its grip on at least six more UK hotspots in the last 24 hours, the 'red zone' map has revealed.
So far 17 patients in the UK have been left fighting for their life by Aussie flu.
Blue areas on the map show the areas largely unaffected by flu while the red areas mean there has been a spike in cases.
Plymouth, Cornwall, Durham, Teesside, Essex, Dumfries and Galloway and north east areas of Scotland were marked as the worst affected yesterday.
Now southern cities in Hampshire such as Portsmouth, as well as counties in south west Scotland, are receiving a high number of reports.
More cities in Hampshire are now receiving a high number of reports.
The data from the FluSurvey map is used by researchers at Public Health England and London School of Hygiene and Tropical Medicine.
A government report revealed yesterday Aussie flu is officially on the rise as 17 were left flighting for life in the last week.
The number of people admitted to intensive care units (ICU) with the deadly illness almost doubled between December 28 and January 4, according to Public Health England's weekly National Influenza Report.
Between December 21 and December 28, nine people struck down with the H3N2 strain of the infectious disease required specialist treatment and monitoring on an ICU or High Dependency Unit (HDU).
Since 28th December, a further 8 sufferers hae required urgent medical attention.
A subtype of influenza A, the bug mainly affects older people, those with long-term health conditions, pregnant women and children.
As flu viruses are constantly mutating, vaccines to protect against the disease have to change each season.
People are asked to take particular caution to spreading germs by washing their hands more often, covering their mouths and noses when they cough, and cleaning surfaces.
Dr Jillian Johnston told the BBC: "Getting the free flu vaccine is the single most important thing you can do to help protect yourself against flu.
"With high levels of flu activity in Australia during their winter, and the potential for similar here, it is more important than ever that everyone who is eligible gets vaccinated.
"We are fortunate to have a more comprehensive flu vaccination programme than Australia or England, but the benefits can only be realised if a high proportion of the groups who can get the vaccine actually take up the offer."
The symptoms may be similar to a common cold, but flu tends to be more severe.
Flu tends to come on in a few hours, makes you feel exhausted and affects more than the nose and throat alone.
It can also lead to much more serious complications like pneumonia.
Flu is spread by germs from coughs and sneezes, which can live on hands and surfaces for 24 hours.
The flu vaccine is the best protection we have, though flu strains change so it needs to be done every year.
The flu jab is offered free to adults at risk, over-65s, pregnant women and children at risk aged six months to two years old, and a spray is offered to children up to four.
You can have the jab at your GP and some pharmacies.
Serious side effects of the vaccine are rare.
Anyone can help prevent the virus from spreading by washing their hands regularly, covering their mouth and nose with tissues or a sleeve when they cough or sneeze, and cleaning surfaces they suspect are infected.