** LumiraDx Limited's shares LMDX.O rise 38.1% to $0.48 -
biggest gainer across U.S. stock exchanges premarket
** Co said the UK's health agency has validated its COVID-19
and RSV tests under the Coronavirus Test Device Approvals (CTDA)
process
** Medical test maker said the test allows for detection of
SARS-CoV-2 infection within 5 minutes, which will aid the UK
government in preparing for another respiratory season
** Co expects to begin commercialisation of these tests in
the UK and commence commercial shipments imminently
** Up to Tuesday's close, stock had fallen ~61% YTD
(Reporting by Khushi Mandowara in Bengaluru)
((Khushi.Mandowara@thomsonreuters.com;))