Caused by the Epstein-Barr virus, it presents with extreme fatigue, fever, swollen lymph nodes and a sore throat lasting for weeks,” explains ... currently 4.5 per 100,000 people.

Unless it doesn't go away. If you have a persistent sore throat lasting three to four weeks, the NHS says you should see your GP because it could be a sign of something more serious. And, rarely, it ...