State officials say they have found replacements for the lab company that handles most of Connecticut’s state-run coronavirus testing, including the sites in Danbury at Pat Waldron Hall and at the Kent Transfer Station.  Department of Administrative Services Commissioner Josh Geballe says some final details are being worked out. SEMA4 processes tests from 16 of the roughly two dozen state sites.  The Stamford-based company told investors and state officials last month that it would stop COVID-19 testing in mid-January and return its focus to genomic testing, its core business. Sema4 later agreed to continue the coronavirus testing through the end of this month.