"Our staff are determined that this criminal and malicious event does not overshadow the hospital's long-standing record of good care and we are grateful for the outstanding support for our community.
"The police investigation may be ongoing, but we have always been clear that the deplorable act of deliberate contamination does not reflect on the good care provided by our skilled and dedicated staff."
More top news
A frost free night but fairly cloudy start to Friday. A brighter afternoon, especially in the south, but with winds strengthening.
A boy from Manchester was excluded from taking part in World Book Day for dressing at Fifty Shades of Grey character.
A 14-year-old boy was tied up and threatened with a machete by burglars when he was home alone.