After a spell of autumn rain, the weather in Chang'an turned gloomy, cold, and damp. Li Wei, who was staying at the Academic Palace, complained about the dampness in his dormitory. He asked Li Ang for a talisman and stuck it on his quilt.
The sudden change in weather also led to many people in Chang'an City developing coughs, which worried Li Ang. He made a special trip to the sick house to observe and found that the patients' symptoms were all related to wind-cold: nasal congestion, runny nose, and itchy throat.
The sick house Doctors were not surprised by this; it was merely wind-cold. Compared to terrifying diseases like malaria, pestilence, and tuberculosis, it was considered trivial. They didn't understand why Li Ang took it so seriously.
A common cold isn't scary, but a pandemic flu is... Li Ang thought silently.
