A six-year-old girl and a doctor who both had swine flu have died, bringing the number of swine-flu related deaths in the UK to 17.
Chloe Buckley, from north west London, died in hospital on Thursday, while doctor Michal Day died in Bedfordshire on Saturday.
Tests are being carried out to find out exactly what caused their deaths.
Last week, a man in Essex became the first person to die of swine flu who didn't have any other health problems.
Of the 17 swine flu-related deaths in the UK so far, 15 have been in England and two in Scotland.
But doctors say in most cases swine flu can be a very mild illness and most people who catch it should start to feel better after a few days.
And they say you can still do your bit to prevent the virus spreading, by regularly washing your hands to kill the virus and using tissues if you sneeze.