Step aside, let me take charge!.

Summary

. The chapter discusses the belief among physicians that epidemics stem from six environmental factors: wind, cold, heat, dampness, dryness, and fire. It references the "Shang Han Lun," which notes seasonal climate discrepancies leading to plagues. An ancient text suggests that these seasonal changes are normal and that true plagues arise from a different source, termed "liqi," which affects everyone indiscriminately. The text proposes that blocking the mouth and nose can prevent "liqi" from entering the body, leading to the use of masks for protection. Dong Lao Yi Shi observes the use of masks and considers their potential utility in his practice. Meanwhile, Shen Tang addresses the shortage of healers in Ha Yin and suspects the epidemic may be man-made. She instructs her subordinates to monitor suspicious individuals and check for illness in nearby villages, planning for isolation and treatment of the sick. .

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