CDC questions accuracy of coronavirus antibody test

The CDC says these tests can be wrong up to half the time.

REPORTED 29 NEW CASES...BRINGING THEIR TOTAL THERE TOMORE THAN 13-HUNDRED.CORONAVIRUS ANTI-BODY TESTS AREMORE WIDELY AVAILABLE THESEDAYS..

BUT NOW THERE ARE NEWCONCERNS ABOUT THEIR ACCURACY.THE C-D-C SAYS THESE TESTS CANBE WRONG UP TO HALF OF THE TIME.THE TESTS ARE SUPPOSED TO SHOWIF SOMEONE HAS HAD THE VIRUSALREADY.C-D-C GUIDELINES SAY BECAUSE OFACCURACY ISSUES, RESULTS FROMTHESE TESTS SHOULDN’T BE USED TOMAKE POLICY DECISIONS- LIKERE-OPENING SCH