World Hepatitis Day is an annual event that provides international focus for patient groups and people living with hepatitis.
Mr Cameron said it was critical that those who could be at risk continue to be tested.
The PM said:
With more people being tested for Hepatitis C, and treatments improving all the time, an early diagnosis can make a real difference. But its critical that people who could be at risk continue to be tested, as it’s a disease which can go undetected for years. We are looking at how we can strengthen efforts to prevent and control hepatitis C in the future, as part of our strategy for combating liver disease.
But today, on World Hepatitis day, I urge everyone who could be at risk to go and get checked out.