All cabinet ministers are now restricting their movements as a result.
A spokesperson says Minister Charlie Mc Conalogue has no symptoms and is self isolating.
It comes as the HSE warns the risk posed by the virus is at its highest point to date.
It comes as the Government urges people to reconsider their plans for Christmas.
The Government says the decision to return to level 5 restrictions over Christmas was not taken lightly, but the increase in cases could not be ignored.
Irish Coast Guard, RNLI and Water Safety Ireland urge everyone to 'Unite to Turn the Tide
July has been one of the busiest months in years for rescue services, with warm weather bringing more people to Wicklow beaches, rivers and lakes.
Bray Wanderers Head To Cobh Amid Apparent Cross-Channel Interest In Seagulls Talent
New Laws Boost Protection In Wicklow Mountains National Park
A dedicated National Parks Bill will put nature conservation first and help manage growing visitor numbers.
Woman Dies In Waters At Wicklow Beach
The incident occurred on the outskirts of Wicklow town, near the Blainroe golf club.
Wicklow Housing Remains Ireland's Most Expensive Outside Dublin
Strong demand, low vacancy and limited housing stock are keeping county prices elevated.
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Heavy rain shower
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