In the US, five states account for more than 40% of the country's nearly 5 million Covid-19 cases - CNN

The number means the country holds about a quarter of global cases of the virus and also tops the list with the most reported deaths in the world.

To put the speed in which the number is growing in perspective: It took the country 99 days to reach 1 million, 43 days to hit 2 million, 28 days for 3 million and 15 days to surpass 4 million on July 23.

California, reporting more than 7,000 cases Saturday for a total of more than 545,000, had a positivity rate of about 6% over the past two weeks, according to health officials.

Thousands gather in small South Dakota city

As the virus runs rampant through many US communities, visitors have poured into a South Dakota city for the 80th annual Sturgis Motorcycle Rally.

The state has so far recorded one of the lowest number of cases with about 9,477 infections, according to the state's health department.

Earlier this month, two teenagers died in Florida from coronavirus complications, bringing the state's total number of minors who have died in relation to the virus to seven.

With a positivity rate of less than 1%, New York has cleared all school districts across the state to reopen, Cuomo said Friday, adding that plans may change if infection rates begin spiking again ahead of the scheduled reopenings.

At North Paulding High School, which suspended then "rescinded" the suspension of a student who posted a photo of its crowded hallways, six students and three staffers have contracted the virus, according to a letter the principal sent to parents, which was obtained by The Atlanta Journal-Constitution.

At least 260 students and eight teachers in the Cherokee County School District were quarantined after multiple students and teachers tested positive for the virus during the first week of school.

Among them was a second-grader who tested positive for the virus after the first day of school.