After blowback, Texas acknowledges 6% of its reported tests were of antibodies, not active infections

Nurse Kristen Howell, left, and Medical Lab Tech, Amanda Hernandez, administer a COVID-19 test at the Austin Regional Clinic drive-up testing site in Kyle on March 31, 2020.Eddie Gaspar/The Texas TribuneTexas health officials on Thursday made a key change to how they report data about the coronavirus, distinguishing antibody tests from standard viral tests and prompting slight increases in the state’s oft-cited daily statistic known as the positivity rate.The positivity rate is the ratio