Reporting your symptoms on social media sites like Twitter can help us locate the source and spread of an outbreak in real-time, even before people start visiting their doctor. Find out more about how your tweets help our research.
Flu vaccination has been proven to ease the burden of flu on the community - minimising the often unpleasant symptoms and even helping to prevent it altogether.
This is especially important for vulnerable members of the population such as adults over 65, pregnant women and people with weakened immune systems. Even if you are part of a healthy, low-risk group, getting vaccinated helps those around you, who need greater protection.
For more information, visit the NHS choices flu vaccine page.
Take charge of your health
One in four HIV-infected people in the UK are unaware that they are HIV-infected. It is crucial that HIV is diagnosed and treated at the early stages to prevent it from spreading and to increase a patient's longevity and quality of life.
Making sure you are regularly tested is the first step to early diagnosis and helping healthcare systems to manage this disease.
To find out more about HIV testing and your local test centres, visit the NHS choices HIV testing page.