Novel methods accepted by JAMA：Posterior Throat Swabbing and WeChat Contact Tracing from the Second Xiangya Hospital of Central South University.

On March 20, 2020, the editorial department of JAMA issued "maintaining supply of personal protective equipment-a call for ideas". The suggestions of The Second Xiangya Hospital of Central South University on throat swab sampling were adopted in the form of editorial online comment.

The Surgical Intelligent Medical Team of The Second Xiangya Hospital of Central South University developed a posterior approach to throat swab sampling using a mirror using the following technique:

(1) Prepare PPE and environment properly according to the risk assessment of pathogen infectivity from examinee in an airy room, with the wind direction from operator to examinee;

(2) Prepare light source, light reflector (such as mirror), and material for traditional throat swab sampling;

(3) Stand behind the examinee. Adjust the position of light source and mirror;

(4) Instruct the examinee to open mouth. See the oropharynx by the mirror. Use one hand to depress the tongue with a tongue blade bypassing one side of examinee. Use another hand to swab bypassing another side of examinee.

The technique is illustrated in several videos.

Demonstration video of traditional anterior approach for throat swab sampling.

Demonstration video of novel cost-effective posterior approach for safe throat swab sampling.

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