Public Health England has said the risk of cat owners contracting tuberculosis is "very low" after two people developed the disease after coming into contact with a cat.
Professor Dilys Morgan told ITV News, "Something strange has happened in this instance".
"We don't know exactly what's happened but I don't think that we can read too much into it, that it is an increasing trend," she added.
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Those taking part in the bizarre trend say the combination of fruit juices and hot water makes for a uniquely liberating experience.
Zlatan Ibrahimovic once again proved his worth to Manchester United, with two decisive goals against Southampton at Wembley
Heavy, thundery, at times wintry showers across the UK overnight tonight and throughout Monday. Feeling increasingly cold.