Bristol people can take part in world-first 'mix and match' coronavirus vaccine trial Experts will find out if the vaccine still works if different types are used for the first and second dose Updated The video will auto-play soon8Cancel Play now SIGN UP 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. Thank you for subscribingWe have more newslettersShow meSee ourprivacy notice