Yes, glandular fever is contagious. It’s caused by a herpes virus called the Epstein–Barr virus (EBV). The EBV virus is spread from person to person in saliva. You can help to prevent getting or spreading glandular fever by washing your hands often. And clean anything that comes into contact with saliva, such as cups, glasses and cutlery.
See our sections: causes of glandular fever and prevention of glandular fever above for more information.