I received a phone call from my mum today and BRO is in hospital, he got sick on Thursday, vomiting and I assume he must have felt completely rotten as an ambulance was called, and this is a guy who never stops working.

He is undergoing a raft of tests and scans, prostate was checked today and that is fine, WBC was 31, which is really high. He goes in for an ultrasound (I think) on Monday, I guess to see if they can find something.

I am not game to google, but can you have a virus that could cause such high WBC?
TIA
xxoo