The HSE has asked thousands of people who have tested positive for the disease to carry out their own contact tracing.
The Irish Medical Organisation is fearful that people who didn't know they were close contacts may have easily spread the virus in the past couple of days, according to the Irish Independent.
It's also emerged that alerts on the Covid-19 tracker app were delayed on Apple devices, which the HSE was due to a sync issue - but has now been resolved.
