The HSE is asking thousands of people who tested positive for COVID-19 to carry out their own contact tracing due to pressure on the system.

Taoiseach Micheál Martin was only made aware of the situation last night when he received a link to an Irish Times article by text.

But why is the system in such bad shape?

Catherine Murphy, co-leader of the Social Democrats, and Kingston Mills, Professor of Experimental Immunology at Trinity College Dublin, joined us to discuss.