A stay-at-home order, safer-at-home order, movement control order (more common in Southeast Asia), or lockdown restrictions (in the United Kingdom) – also referred to by loose use of the terms (self-) quarantine, (self-) isolation, or lockdown – is an order from a government authority that restricts movements of a population as a mass quarantine strategy for suppressing or mitigating an epidemic or pandemic by ordering residents to stay home except for essential tasks or for work in essential businesses. The medical distinction between such an order and a quarantine is that a quarantine is usually understood to involve isolating only selected people who are considered to be possibly infectious rather than the entire population of an area (though many colloquially refer to stay-at-home orde