April 30, 2021 Clinical Research Preprint study evaluated entire Scottish population and calls into question delaying second Covid vaccine dose up to 12 weeks. After first dose it noted a drop in preventing hospitalization from 84% at 5 weeks to 58% after the 7th. And after 16 weeks?
April 8, 2021 Health Policy NACI stands by its four month dosing interval but does not provide further evidence that this will work well for all age groups and for those with complicating medical conditions. Hope the gamble works (truly, no sarcasm).