more infectious' strain of Covid-19, which had originated in Britain recently, the Indian Council of Medical Research (ICMR) on Saturday said.Taking to Twitter, the country's apex medical body wrote: "UK-variant of the virus, with all signature changes, is now successfully isolated and cultured at the National Institute of Virology (NIV) from the clinical specimens collected from UK-returnees."India successfully cultures the new viral strain on the horizon (UK-variant of SARS-CoV-2). #ICMRFIGHTSCOVID19 #IndiaFightsCOVID19 #CoronaUpdatesInIndia #COVID19 #Unite2FightCorona @MoHFW_INDIA @PIB_India @DrHVoffice @drharshvardhan @AshwiniKChoubey @icmr_niv pic.twitter.com/vaCMQMSHOJICMR said that Sars-CoV-2, the killer virus causing coronavirus,.