A confidential hepatitis C home test is available for free from the HSE.
On World Hepatitis Day today it's urging people who might be at risk of the condition to order the home test.
The HSE has treated over 7,000 people in this country with a 95 per cent cure rate but many don't know they're infected.
Around 3,500 to 5,000 people in this country are unknowingly living with hepatitis C.
Clinical Lead for the Hepatitis C Treatment Programme Professor Aiden McCormick says it's a serious disease.
We have treated over seven thousand patients and cured them." Professor McCormick said.
"Hepatitis C is a chronic viral infection, which if left untreated could cause cirrhosis, liver cancer and possible death.
"We can cure this virus completely, with 8-12 weeks treatment.
"We encourage anyone who has had a blood transfusion before 1990, or a blood transfusion in countries where they are not sure of the quality of their health service, to get tested."
For more information and to get your test, click here.