Manchester City pair Craig Bellamy and Vladimir Weiss have contracted swine flu, with several other players currently under observation for the virus.
Weiss was ordered to stay away from Eastlands ahead of Saturday’s Premier League victory over Chelsea after it was discovered he had contracted the illness.
City have confirmed that Wales international Bellamy has also been suffering from the virus, while a number of other staff members have reported flu-like symptoms and have had swabs taken.
“There is a little bit of it creeping into the camp,” City assistant boss Mark Bowen told the Manchester Evening News.
“Players come in every day with sniffles, coughs and colds and the doctor has to determine whether it is the onset of something more serious.
“It is his decision whether they have to be sent home.”