The number of covid infections in the uk has fallen by 15%, with a decrease in all the nations in the week ending 16th april, according to the office for national statistics. our health editor hugh pym is here. how significant is this? i think it is significant, partly because the ons survey is the most authoritative benchmark on covid. those daily reported cases that we have all got used to our very volatile and affected by the fact that quarantine regulations have now gone and there is no more free lateral flow testing in many parts of the uk. this is important and it does show a 15% drop, 3.76 million people in the uk having the virus last week. the ons says this is a welcome decrease after recent increases to record levels. the survey is of households around the