The 'Covid arm' side effect of Moderna vaccine Doctors have said it's a normal immune system response and nothing to worry about 'Covid arm' is being reported by a small number of those who have had the jab Never miss another story from Coventry and Warwickshire by subscribing to our free email updatesInvalid EmailSomething went wrong, please try again later. Subscribe When you subscribe we will use the information you provide to send you these newsletters. Sometimes they’ll include recommendations for other related newsletters or services we offer. OurPrivacy Noticeexplains more about how we use your data, and your rights. You can unsubscribe at any time.