The number of Australians receiving breakthrough treatment for Hepatitis C has decreased sharply, having dropped to uptake numbers less than half of those when the treatment was introduced in March 2016.

Hepatitis Australia CEO Helen Tyrrell has warned those affected by the disease should seek treatment immediately as the virus can progress to serious liver disease, if left untreated.

Around 60,000 Australians have been treated since the introduction of the medicines, however more than 170,000 are still living with the virus.