By EMILY JOSHU HEALTH REPORTER FOR DAILYMAIL.COM UPDATED: 14:57 EDT, 6 June 2023 An off-the-shelf cancer vaccine could help prevent relapse in patients with two of the deadliest and fastest-rising cancers in the world. The shot is designed for patients whose cancers are caused by the KRAS mutation, which accounts for up to nine in 10 cases of the...