By JOE DAVIES HEALTH REPORTER FOR MAILONLINE PUBLISHED: 13:32 EDT, 14 April 2022 | UPDATED: 13:42 EDT, 14 April 2022 Immune cells against glandular fever may hold the key to treating multiple sclerosis, scientists have claimed. In a small trial, patients with MS were implanted with T-cells that target the virus that causes glandular fever. Brain scans suggested the progression...