>> reporter: angry protests in the heart of london. as police and antivaxxer accounts clash in front of parliament. end of vaccine mandates and other covid measures. the unrest comes, after england has recorded the highest number of children admitted to hospital with covid since the pandemic began. december the 12th, more than half just 75 years old and under. >> they're a lot younger than half just 5 years old and under. >> they're a lot younger than the patients that we used to -- we had in the first and second surge. >> reporter: as record number of new nefntions threaten to strain britain's already health system, 100 people are being boostedin london alone. >> the wait time is two to three hours. >> so many people are complaining. >> why do you think you should get this? >> piece of mind if anything else.