These refer to infections acquired after getting admitted to a healthcare facility.

Healthcare-associated infections (HAIs) are specifically defined as infections that patients acquire during their time in a healthcare facility, such as hospitals or nursing homes. These infections are not present or incubating at the time of admission and can result from various factors, including medical procedures, the presence of invasive devices (like catheters or ventilators), or the spread of pathogens within the healthcare environment.

Understanding HAIs is crucial for caregivers and healthcare professionals because they highlight the importance of infection control practices, hygiene, and the need for vigilant monitoring of patients in a healthcare setting. This knowledge helps in preventing potential outbreaks and protecting vulnerable populations within these facilities.