Relying on $1.7 billion in President Joe Biden’s coronavirus relief bill, the U.S. has been setting up a national network to better track coronavirus mutations.

The new COVID strain is ’cause for concern, not a cause for panic,’ President Joe Biden said Monday.

The more transmissible mutation has gained a foothold in Mountain West and heartland states. Many of those infected are young and unvaccinated.

Administration officials said they were redoubling their focus on vaccinating younger Americans age 18-26.