https://apnews.com/adb76dc11182714e12a4a3a1e33abb3e > WASHINGTON (AP) — A new type of coronavirus test offers a cheaper, quicker way to screen for infections, moving the U.S. toward the kind of mass screening that experts say is essential to returning millions of Americans to school and work. > But the first so-called antigen test — announced Saturday by the Food and Drug Administration — is not quite the kind sought by top government health officials. It is less accurate than the current gold standard for testing and can only be run on specialized equipment.