Anyone who has provided care to a case: health or social health personnel who have not used adequate protection measures, or family members or people who have other types of physical contact. Anyone who has been in the same place as a confirmed case, at a distance of less than 2 meters (eg cohabitants, visitors) and for more than 15 minutes. Close contact on an airplane, train, or other long-haul mode of transportation (and where access to passenger identification is possible) is considered to be any person within a two-seat radius of a confirmed case and the crew or equivalent personnel who have had contact with said case