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Why it matters: England's deputy chief medical officer Jonathan Van Tam said this week that citizens had "relaxed too much" over the summer, warning of "a bumpy ride over the next few months" unless people started taking the virus seriously again.
The state of play: The rule takes effect on September 14, threatening fines up to £3,200 ($4,150) for those who do not comply. It applies to both indoor and outdoor social gatherings, as well as those at pubs and restaurants.
- It does not apply to schools, workplaces or coronavirus-secure weddings, funerals or sports.
- Prime Minister Boris Johnson said, "It is absolutely critical that people now abide by these rules and remember the basics — washing your hands, covering your face, keeping space from others, and getting a test if you have symptoms."