Isolation is a public health measure that separates people who are infected with a contagious disease from those who are healthy, preventing disease spread. Unlike quarantine, which separates people who may have been exposed, isolation applies to confirmed cases. During disease outbreaks, public health authorities may require infected individuals to remain isolated at home or in healthcare facilities until they are no longer contagious. Municipalities support isolation measures through public health departments, providing information, resources, and sometimes assistance with food delivery or other needs for people who cannot leave their homes during isolation periods.