全国新冠疫情连续三周下降，进入稳定下降通道

Group 1 - The core viewpoint is that the COVID-19 pandemic in China has been on a steady decline since late May, with no significant impact on medical resources or daily life [1][2] - Other respiratory infectious diseases, including influenza, are currently at low levels of prevalence [2] - Public health recommendations include personal protective measures during travel, especially for vulnerable populations [2][3] Group 2 - There is an increase in the risk of gastrointestinal issues, particularly diarrhea, during the summer months, which can be caused by various factors, not just food [4][5] - Preventive measures against diarrhea include avoiding drinking tap water and ensuring food hygiene [4][5] - Severe cases of diarrhea require immediate medical attention, especially if dehydration symptoms are present [4][5] Group 3 - The risk of cardiovascular diseases increases in summer, particularly for older adults, who should be aware of warning signs such as sudden dizziness or chest discomfort [6][7] - Recommendations for older adults include maintaining adequate sleep, moderate exercise, and regular monitoring of health indicators like blood pressure and blood sugar [7]