The Karnataka government on Tuesday issued a fresh set of guidelines for people coming from Kerala, which has seen an increase in COVID-19 cases, saying these would come into force with immediate effect. Based on recommendations of the Technical Advisory Committee on COVID-19, new special surveillance measures for those arriving from Kerala have been introduced, Additional Chief Secretary Jawaid Akhtar said in a release. It would now be mandatory for those arriving from that state and checking into hotels, resorts, hostels, home stays and dormitories to have a negative RT-PCR certificate, which should not be older than 72 hours. The government said positive samples would be sent to NIMHANS here for genomic sequencing.