President Joe Biden is set to call on all U.S. K-12 schools to set up weekly COVID-19 testing for students, teachers and staff.

It will be one of Biden's key strategies for combating the Delta variant surge, which will be announced during his speech on Thursday afternoon, according to an NBC report.

The push for testing comes as record numbers of children fall ill with the virus, posing an immense challenge for the schools now reopening for their fall 2021 semester.

However, most pediatric cases are not severe and Covid-related fatalities among children are rare, with pediatric deaths making up just 0.1 percent of all COVID-19 deaths in the U.S.

Many schools are not currently utilizing Covid testing, despite Congress dedicating $10 billion towards this safety strategy in April.

Experts say regular testing can help schools identify cases before they turn into outbreaks and that schools that utilized testing last year were able to keep case numbers down.

Biden is set to make a big announcement Thursday afternoon, revealing a six-point plan to address the ongoing pandemic surge.

One of the points in his plan will be school testing.

'The administration is calling on all schools to set up regular testing in their schools for students, teachers, and staff consistent with CDC guidance,' an official told NBC.