Wexford General Hospital is treating five patients with suspected Swine Flu, three of whom have been confirmed as having the H1N1 strain.
According to the HSE, the influenza strain responsible for the infection is currently circulating. Hospital staff are carrying out tests on the two other suspected cases.
Although the current level of H1N1 cases has been described as unusual, Clinical Director Dr Colm Quigley noted that it is seen from time to time.
Quigley added that there is no cause for undue concern and that healthy people should not have a problem dealing with the strain.
At-risk groups that require special attention typically include pregnant women, those with compromised immune systems, and elderly people over the age of 65.