Gargle specimen sampling

A method comprising:

• rinsing an oral cavity of a subject with a rinse liquid;
• thereafter, introducing into the oral cavity a gargle liquid and gargling the gargle liquid by the subject by holding the gargle liquid in a throat of the subject and agitating with air expelled from lungs of the subject;
• and
• thereafter, collecting at least a portion of the gargled liquid as a specimen sample, wherein rinsing the oral cavity removes saliva from the oral cavity prior to
• gargling, thereby reducing the amount of saliva in the gargled liquid that is collected as the specimen sample.