a signal (usually a siren) that danger is over

the process of trying to identify individuals who might have had close contact with an infected individual, particularly in order to treat or quarantine them

to clean something carefully and thoroughly to prevent the spread of infection and germs

the process of cleaning all parts of something thoroughly and with extreme care in order to prevent the spread of infection

protection from a disease that occurs when a large portion of a population becomes immune to an infectious disease through vaccination or prior illness

permission given by a patient to receive a particular treatment, informed of all the possible consequences and risks

(of an illness or disease) capable of being cured

a period during which a patient's condition improves and the symptoms seem less severe

promoting one's health and strength after a period of injury or illness

a medical test that uses special X-ray technology to create detailed pictures of the inside of a person's body