By Leona O'Neill
It's understood a baby has been tested for Coronavirus at Altnagelvin Hospital in Derry-Londonderry.
The baby boy is thought to be less than 6 months old.
The child flew in to Ireland from Hong Kong at the weekend and had been experiencing flu like symptoms.
He was met at hospital doors by staff in protective suits.
A spokesperson for the Western Trust said they would not comment directly on the incident.
The PHA said:
'The health service here is monitoring for any potential cases of novel Coronavirus.
A helpline has been established for anyone in Northern Ireland who has travelled to China, Thailand, Japan, Republic of Korea, Hong Kong, Taiwan, Singapore, Malaysia and Macau in the past 14 days.
The helpline number is 0300 200 7885.
We are not providing a running commentary on numbers of suspected cases in Northern Ireland.
We will not be commenting on numbers of people being screened, and we cannot comment on any individual cases.
The Department of Health and Social Care will publish UK-wide updates at 2pm on www.gov.uk/coronavirus every day until further notice.
This is an evolving situation and we will provide updates and further guidance as required.'