He says they've made sure social distancing is in place at church events.
NPHET is to advise the government whether cities could be placed on higher COVID restrictions instead of locking down entire counties.
It comes amid concerns about Cork, Waterford, Limerick and Galway as cases there continue to rise.
Donegal will enter level three restrictions from midnight and the Taoiseach has said health officials will be working with their counterparts in the north to ensure a synchronised response both sides of the border.
Micheál Martin also says NPHET will be examining whether cities could be treated differently to the rest of the county they're in:
A midlands priest says people need to think carefully about how they celebrate church events.
The surge in covid cases in Donegal has been traced back to social gatherings, including communions and confirmations.
But Father Paddy Byrne, who oversees six parishes in Laois, says he ensures all church ceremonies abide by health guidelines, and says outbreaks are coming from family celebrations afterwards:
Median House Prices Rise In Midlands
Literary Festival Kicks Off In Laois Tomorrow
New Entrance To Laois Shopping Centre Gets Green Light
Midlands Winners For Family Carer Of The Year Announced
INTO Survey Reveals Job Vacancies In Over Half Of Special Schools
Offaly Mother Raises Almost €2k for Down Syndrome Ireland
Laois TD Urges Stronger Support For Tillage Sector
Midlands Agricultural Land Prices Surge 10% In A Year
People Weren't Happy With The Choice - Spoil The Vote Campaign
Cannonball Ireland Raises Over €2.2m For Children’s Charities
Plans Submitted To Revive Fire Damaged Café In Laois
Gardai Seek Help In Locating Hijacked Car In Midlands
Ryanair CEO Pleased With Jump In Profits
TDs Call To Deport Convicted Relatives In Ashling Murphy Case
Former Mayor of Westmeath County Council Laid To Rest
Cabinet to Consider Charges For Asylum Seekers In IPAS Centers
Gardai Looking For Man Last Seen In Midlands
Jobs Fair In Support Of Couriers To Take Place In Laois
New ‘Give Take Return’ Recycling Pilot To Launch In Westmeath
Muintir Na Tíre Honoured For 40 Years Of Community Service In Laois