How the two new Covid jab could rescue UK's vaccine roll-out from grinding to a halt Vaccination sites have been told to expect a significant reduction in supply Sarah Schiffling, Liverpool John Moores University Daniel Smith Updated The video will auto-play soon8Cancel Play now There are always big stories on WalesOnline - don't miss any with our daily emailInvalid EmailSomething went wrong, please try again later. Sign me up now 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.