People gather at Windsor Castle, Berkshire, UK Maureen McLean/ShutterstockA drop in covid-19 case numbers in the UK is not enough to make it a summer. However, this recent drop in cases may be a turning point. Experts warn that there are other reasons for the decline, which cannot be ruled.Seven consecutive days have passed since the UK's first daily covid-19 cases began to be reported. This is the longest continuous fall in number of UK citizens testing positive. Official UK government statistics show that there were 23,511 cases of covid-19 in the UK on July 27, which is down from 24,711.