Core Insights - The article highlights a significant increase in respiratory diseases, particularly COVID-19, during the transition from spring to summer, with a notable rise in positive testing rates across various regions in China [1][3]. Group 1: Respiratory Disease Trends - The positivity rate for COVID-19 testing has been on the rise since April, with southern provinces showing a notably higher rate compared to northern ones. The proportion of COVID-19 cases among outpatient flu-like cases increased from 7.5% to 16.2% [1]. - Among adults aged 15 and older, COVID-19 positivity rates are the highest in both outpatient and inpatient cases. The rate of COVID-19 in severe acute respiratory infection cases rose from 3.3% to 6.3% [1]. Group 2: Causes and Transmission - Respiratory infectious diseases are caused by pathogens entering through the respiratory tract, with common pathogens including viruses and bacteria. The fluctuation in temperature and increased humidity in May contribute to a higher survival rate of viruses [3][4]. - The transmission of respiratory diseases occurs through various means, including droplet transmission, airborne transmission, and contact transmission [5][6][7]. Group 3: Prevention Measures - Emphasis is placed on personal hygiene, such as frequent handwashing, especially after contact with public facilities, to reduce the risk of virus transmission [8][9]. - It is recommended to ensure proper indoor air circulation by ventilating spaces at least three times a day for a minimum of 15 minutes to lower indoor virus concentrations [10]. - The article discusses the use of traditional Chinese medicine, specifically the Xia Sang Ju granules, which have shown potential in inhibiting flu and coronavirus, supported by multiple patents for their effective components [12][18].