All travellers arriving from countries deemed as high risk of the new Omicron variant will be required to wear a monitoring device, Health Minister Khairy Jamaluddin said today.br br The extra precautionary measure followed the Health Ministry's discovery of the first Omicron variant in the country yesterday.br br Khairy told a press conference today that the digital tracker device would need to be worn by the travellers throughout their mandatory quarantine period.