The public health lab uncovered a flaw in one of the COVID-19 testing systems.
The flaw, which has been reported to both the manufacturer and the federal Food and Drug Administration, led to 90 of 144 people tested during June 15-July 17, 2020 receiving a false positive COVID test report.
Many of the persons with false-positive test results are nursing home residents. Any nursing home resident with a false positive COVID-19 test result will be retested as soon as possible.
The Department of Public Health epidemiologists are reaching out to nursing homes again Monday to review all of the clinical issues for any impacted patients.
DPH has taken immediate steps to make sure the patients are notified.
"We have notified the healthcare facilities for everyone who received a false positive test result from our state laboratory," said Acting Commissioner Deidre S. Gifford, MD, MPH. "Accurate and timely testing for the novel coronavirus is one of the pillars supporting effective response to the COVID-19 pandemic. Thanks to the quick action of our team at the state lab, adjustments have already been made to ensure the accuracy of future test results from this platform."
The errant testing results were from a widely-used laboratory testing platform that the state laboratory started using on June 15.
The false positive test results were discovered by DPH laboratory scientists during an examination of previously positive samples to determine the feasibility of testing "pooled" specimens at the state lab.
The exact cause of the false positive results is still being investigated.
The overall COVID-19 case numbers for Connecticut will be adjusted downward as a result of these false positive tests, provided that re-testing still shows the impacted individuals to be negative.
RELATED: NY, NJ, CT add more states to quarantine
WATCH THE SERIES: EYEWITNESS TO A PANDEMIC (Episode 6 below)
MORE CORONAVIRUS COVID-19 COVERAGE
abc7NY Phase Tracker:
COVID-19 Help, Information. Stimulus and Business Updates
New York City
Westchester and Hudson Valley
7 On Your Side Investigates: Up to 4,000 coronavirus cases prevented by NYC contact tracers
What's Open, What's Closed
Reopening New York State
Reopening New Jersey
Total count of NYC, Long Island COVID-19 cases based on patient address