Sinn Fein leader Mary Lou McDonald has tested positive for coronavirus after being "very unwell" for a number of weeks.
In a statement the party's president said she received the diagnosis for Covid-19 on Monday after being tested on March 28.
Mrs McDonald said that she had developed post-viral pleurisy, an inflammation on the layers that cover the lungs.
“The public health doctor informs me that I am no longer infected or infectious, and this is a great relief after weeks of being very unwell," she said.
“I had a setback in my recovery at the weekend and developed post-viral pleurisy in my right lung. I am on medication and responding very well, and I fully expect to be back at work next Monday.
Sending my best wishes to my friend & UachtarÃ¡n Shinn FÃ©in @MaryLouMcDonald & to all those fighting #COVID19.— Michelle OâNeill (@moneillsf) April 14, 2020
I am in regular contact with Mary Lou & she thanks everyone for their good wishes.
Please stay safe & continue to follow the advice.
Together we will overcome #COVID19 pic.twitter.com/1ZYbq11hvj
“My thoughts and solidarity are with everyone who is sick at this time, and my gratitude is with our doctors, nurses, carers and everyone who looks after us.
“My sympathy is with every bereaved family. I am heartbroken for you.
“My appeal to everyone is to stay safe, stay home and stay apart. You do not want to get this virus.
“Thanks to everyone who has asked after me and sent good wishes. Your kindness is much appreciated and I'll be back next week. There is much work to be done - Ireland must change for the better.”