This kit is called CTM(Clinical Virus Transport Medium). CTM is intended for the collection and transport of clinical specimen containing Corona Virus and others. Collected Samples by each Nasopharyngeal Swab and Oropharyngeal Swab can be preserved in One Virus Transport Medium(CTM) simultaneously. -Nasopharyngeal Swab : Tilt the patient's head back slightly to straighten the passage from the front of the nose, and gently inset the swab along the base of the nose(not upwards) until it reaches the nasopharynx-gentle rotation of the swab for a few seconds may be helpful. -Oropharyngeal Swab : Press the tongue and extract the secretion from the back wall of pharynx.