research suggests that if you were previously infected with either the alpha or delta strains, you probably only have about 20% protection against reinfection with omicron. his comments came on the day the uk recorded its highest ever number of confirmed covid infections. statistics compiled across the country show 78 thousand 610 new lab confirmed cases in the latest 2a hour period. to put that in context it s the highest daily total recorded in britain since the pandemic began. and it s also a jump of almost 20 thousand cases on the previous day. much of that is due to omicron but the other variants, particularly delta, haven t gone away. the chief medical officer for england, chris whitty, says there are now effectively two pandemics happening at the same time. this is a really serious thought at the moment. how big a threat, there are several