A coronavirus advice notice is seen next to an anti-bacterial gel dispenser in a college in Dublin, Ireland, March 4, 2020. REUTERS/Phil Noble

DUBLIN (Reuters) - Health authorities in Ireland reported the first community transmission of coronavirus not associated with travel from an affected area of Italy on Thursday as the number of cases rose to 13 from six a day earlier.

The male patient who contracted the virus via community transmission is in a hospital in Cork, where his diagnosis was made a number of days after admission, giving rise to the potential of contact with health workers, Dr Tony Holohan, Chief Medical Officer with the Department of Health told a news conference.

Cork University Hospital (CUH) said on Twitter that strict visiting restrictions had been put in place at the hospital due to infection control concerns, with all outpatient appointments on Friday canceled.