A report about a mysterious pneumonia outbreak in the Chinese city of Wuhan is published on RTÉ News.
The virus first emerged in China in late December.
Symptoms may include a cough, a shortness of breath, breathing difficulties, or a high temperature.
The virus can also cause more severe illness, including pneumonia.
The first report of the new coronavirus - or Covid 19 - touching Irish shores was in relation to a woman who travelled through Dublin Airport on her way home to Northern Ireland from northern Italy.
She subsequently tested positive for the illness on returning home to Belfast.
The patient is a male in the east of the country.
A secondary school in the east of the country closed for 14 days after it was confirmed that a male student had the virus.
He had returned from northern Italy, after being in an at-risk area.
The majority of Google's 8,000 staff and contractors in Ireland were told to work from home after a member of staff reported flu-like symptoms.
It was reported that the company decided to use the opportunity to test its capacity to have all staff work remotely in case the situation surrounding Covid-19 escalated.
At the briefing on this new case, Chief Medical Officer Tony Holohan said he saw no reason why, as things stood, that the St Patrick's Day festival should not go ahead.
Four more cases of coronavirus are confirmed in the west of Ireland, bringing the total number of cases in the country to six.
The patients, two male and two female, are all associated with travel from the same affected area in northern Italy.
There were three cases in Northern Ireland at this time.
Seven new cases of coronavirus are confirmed in Ireland, including one patient who had not travelled to an affected area.
Dr Tony Holohan said the country remains in the containment phase, but warns it's a "rapidly evolving situation".
The number of Covid-19 in the Republic of Ireland rises to 18 after five new were identified.
One of these new cases is that of a healthcare worker who was in contact with a confirmed case.
The Taoiseach says the Government will not be ordering the cancellation of any events at this stage, including St Patrick's Day events.
Chief Medical Officer Dr Tony Holohan insists the risk of contracting Covid-19 in Ireland remains low, despite the number of confirmed cases in the Republic of Ireland rising from zero to 18 in just under a week.
He said the country needs to respond to the threat of Covid-19 in unison, and he appealed for people to follow the advice of Public Health.
A number of hospitals across the country impose bans on visitors over the coronavirus while some hospitals begin cancelling elective surgeries and outpatient appointments.
The HSE says it cannot dispute projections that 1.9 million people in the Republic of Ireland may fall ill with coronavirus, but the modelling scenario is not completed yet.
Irish citizens are advised not to travel to certain areas of northern Italy as significant parts of the country have gone into lockdown.
The Health Service Executive says it is working to identify any contacts the three new cases of coronavirus may have had to provide them with information and advice to prevent further spread of the virus.
There are now 24 confirmed cases of Covid-19 in the Republic and 12 cases in Northern Ireland.
Authorities say Ireland remains in the containment phase at this time.
The Government decides to cancel all St Patrick's Day parades on the advice of health officials.
Taoiseach Leo Varadkar says all actions taken so far to deal with the Covid-19 threat have been on the advice of health experts, following the biggest daily jump in the number of cases, with confirmation of ten new diagnoses.
There are now 34 confirmed cases of Covid-19 in Ireland.
The first death due to coronavirus in Ireland - a woman in the east of the country - is confirmed on the same day that the World Health Organization said the coronavirus can be characterised as a pandemic.
WHO chief Tedros Adhanom Ghebreyesus said that he was "deeply concerned" by "alarming levels of inaction" over the virus.
Taoiseach Leo Varadkar announces that schools, colleges and childcare facilities will close until 29 March because of Covid-19.
Speaking in Washington, he also said indoor gatherings of more than 100 people and outdoor mass gatherings of more than 500 should be cancelled.
"Ireland is a great nation. And we are great people. We have experienced hardship and struggle before. We have overcome many trials in the past with our determination and our spirit. We will prevail."
The Department of Foreign Affairs updates its travel advice in relation to EU countries, advising people to exercise "a high degree of caution" before deciding to travel to other EU states.
The Department of Health confirms 20 new cases of Covid-19 in the Republic of Ireland, bringing the total number of cases here to 90.
The Department of Health says 39 more cases have been confirmed - with healthcare workers among them - bringing the total number of cases in the Republic to 129.
Five new cases were confirmed in Northern Ireland, bringing the total number of cases there to 34.
All pubs, including hotel bars, have been asked to close until at least 29 March, in a bid to curb the spread of Covid-19.
The Government also strongly advises against house parties while the pubs are closed.
The request comes as 40 more cases of Covid-19 were confirmed by the Department of Health, bringing the total number of cases in the Republic to 169.
There are now 275 cases of Covid-19 on the island of Ireland after 54 new cases were diagnosed in the Republic and seven in Northern Ireland.
Chief Medical Officer Dr Tony Holohan says a full-scale lockdown would be a disproportionate response and that supermarkets are regarded as essential services rather than indoor mass gathering.
Taoiseach Leo Varadkar says we can expect a 30% increase in cases of the coronavirus every day.
In a special Ministerial Briefing broadcast, Taoiseach Leo Varadkar says coronavirus emergency is likely to go on well beyond 29 March and could go on for months into the summer.
Sixty-nine new coronavirus cases are confirmed in the Republic, 29 males and 40 females, bringing the overall number to 292.
74 new cases of coronavirus are confirmed in Ireland, bringing the total in the country to 366.
The Department of Health says 45 of the new cases involved men and 29 were female.
42% cases are travel-related, 22% associated with community transmission, 17% are as a result of local transmission and 20% remain under investigation.
There are 191 new cases of Covid-19 confirmed in Ireland, bringing the total in the country to 557 from 366 the previous day, an increase of 52%.
Tánaiste Simon Coveney launches a scathing attack on young people who are ignoring social distancing recommendations and called on members of the public to confront individuals who are not taking Covid-19 seriously.
The Department of Health said that the man who died was from the east of the country and had an underlying health condition.
Minister for Health Simon Harris says priority testing, for example for healthcare workers, may be implemented as the number of people here with Covid-19 reaches 1,125.
The Department of Health confirms two more patients diagnosed with Covid-19 in Ireland have died, bringing the total to six.
The Taoiseach announces stringent news measures designed to curb the spread of Covid-19, calling them "unprecedented actions" to respond to an "unprecedented emergency".
In an address from Government Buildings, Leo Varadkar said he was asking people to stay home, unless they could not work from home, with schools and childcare facilities are to remain closed until 19 April.
New rules are introduced for Covid-19 testing, which means patients need to meet revised criteria to qualify in future.
Patients will have to display two major symptoms - a fever and either a cough or shortness of breath - and fall into a priority group in order to be tested.
The Department of Health confirms the deaths of ten more people diagnosed with Covid-19, bringing the total number of deaths in Ireland to 19.
The number of confirmed cases of Covid-19 now stands at 1,819.
The Taoiseach warns that intensive care units may be at capacity "within a few days".
Leo Varadkar said he was concerned about admission rates to intensive care and there was an unprecedented effort being made by the health services.
The measures include people only being allowed to leave home for essential work, to buy food, or for certain vital reasons such as attending medical appointments.
Ten more people are confirmed to have died from Covid-19 in Ireland, bringing the total number of deaths to 46, with 2,615 confirmed cases of Covid-19 in the Republic.
It is the first of 10 flights to Beijing to deliver PPE to Ireland as part of a €208m deal.
The Minister for Employment Affairs and Social Protection says another 283,000 people had applied for the Covid-19 emergency income payment from the Department of Social Protection.
Taoiseach Leo Varadkar said private hospitals have 1,000 rooms for solo occupancy, which are ideal for those who need to be isolated.
Data based on 2,475 confirmed cases of Covid-19 reported up until midnight on Sunday, 28 March shows there are 111 clusters of infection, involving 428 people.
The Department of Health announces a further 14 deaths linked to Covid-19, as well as 212 new cases.
It brings the total number of deaths in the Republic of Ireland to 85.
There are now 3,447 confirmed cases in total.
Chief Medical Officer Dr Tony Holohan expresses concern over the number of clusters identified in nursing homes.
"We need to see continuous actions being taken to reduce the risk of transmission in nursing home and long-term residential facilities," he said.
Sixteen more people have died from Covid-19 in Ireland bringing the overall death toll to 174, with 5,364 confirmed cases of the coronavirus.
The HSE says the capacity to test for the coronavirus will be doubled from this week, to around 4,500 tests a day and a network of laboratories and 50 community test centres have been set up across the country.
The Director of Critical Care Medicine at the Mater Hospital in Dublin says the intensive care unit there is full and some patients, who have been ventilated, have been moved to the high dependency unit for care.
Dr Colman O'Loughlin said that most of the patients in the 18 ICU beds are Covid-19 patients.
The number of people who have died from Covid-19 stands at 288.
The National Public Health Emergency Team confirms that more than half the victims (156) in Ireland were nursing home residents (54%).
The Health Service Executive confirms that eight residents in a Co Laois psychiatric centre died from Covid-19 over Easter weekend (10 -12 April).
The total number of deaths from the virus stands at 444.
The number of confirmed cases had risen to 12,547.
That day, it was announced that an agreement had been reached between the health authority and trade unions, that HSE staff would be re-deployed on a voluntary basis to work in private nursing homes affected by the pandemic.
Of the 11 people who died at St Mary's Hospital in the Phoenix Park, ten tested positive for Covid-19 and the eleventh person is a suspected case, which is awaiting confirmation.
The Department of Health confirms that 41 more people have died from Covid-19 in Ireland, bringing the overall death toll to 571.
There have been ten deaths of residents from the nursing home - some in hospital - in the last ten days.
However, it is unclear how many of them may have been Covid-19 related deaths.
Around 80% of cases of Covid-19 will be a mild to moderate illness, close to 14% have severe disease and around 6% are critical.
Generally, you need to be 15 minutes or more in the vicinity of an infected person, within 1-2 metres, to be considered at-risk or a close contact.