51.   Interferon is a protein substance produced by the body to fight virus infections.

52.   A Taiwan medical official Friday announced the first reported case here of Hanta virus infection, a potentially fatal illness.

53.   After Breckenridge, I got the flu and then a virus infection and I went home for five weeks.

54.   Just a few months later, he was hospitalised for a virus infection contracted after a blood transfusion.

55.   The defending World Cup champion, out for three weeks over the New year with a virus infection, was runner-up in downhill and super giant slalom.