People who take PCR tests will now be told whether they have flu or respiratory syncytial virus (RSV) in addition to their result for Covid-19.
Public Health Wales, in conjunction with the Welsh Government, said the change will help improve surveillance of winter respiratory viruses.
Those who test positive for either flu or RSV will receive a text message, separately to their coronavirus result text, informing them of the result. The change will be rolled out from this month.
