Recently, a strong cold air mass has moved southward across China, causing a sharp drop in temperatures and widening the day-night temperature gap. Meteorological authorities warn that regions including North China, the Huai River basin, the Yangtze-Huai region, and northern Jiangnan are now facing a significantly increased risk of influenza transmission. Cold conditions favor the survival and spread of influenza viruses, and human immunity may weaken in low temperatures, making individuals more susceptible to infection. Health experts advise the public to stay warm, ensure good indoor ventilation, practice frequent handwashing, wear masks, and avoid crowded places when possible. Additionally, getting a seasonal flu vaccine remains one of the most effective ways to prevent influenza. Elderly individuals, children, and people with chronic illnesses—groups at higher risk—are especially encouraged to get vaccinated as early as possible. Local disease control centers have also enhanced flu surveillance and early warning systems, urging the public to remain vigilant and adopt science-based protective measures to reduce infection risks.
近期，一股较强冷空气自北向南影响我国多地，气温骤降，昼夜温差加大。气象部门提醒，随着冷空气南下，华北、黄淮、江淮以及江南北部等地区流感传播风险明显上升。低温环境有利于流感病毒的存活与传播，同时人体在寒冷条件下免疫力可能下降，更容易感染病毒。专家建议公众注意防寒保暖，保持室内空气流通，勤洗手、戴口罩，尽量避免前往人群密集场所。此外，及时接种流感疫苗是预防流感最有效的手段之一。特别是老年人、儿童、慢性病患者等高危人群，应尽早完成疫苗接种。各地疾控中心也已加强流感监测和预警，呼吁民众提高警惕，科学防护，降低感染风险。
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