寒冷的冬季条件刺激了流感和SARS-COV-2的传播,尽管并未直接造成疾病。 Cooler winter conditions boost spread of flu and SARS-CoV-2, despite not directly causing illness.

冷湿天气不会直接造成疾病,但更冷的气温和干燥的冬季空气会增加流感和SARS-COV-2等呼吸道病毒的传播。 Cold and wet weather does not directly cause illnesses, but cooler temperatures and dry winter air can increase the spread of respiratory viruses like the flu and SARS-CoV-2. 更短的日光和室内过敏也能降低免疫力。 Shorter daylight and indoor allergens can also lower immunity. 专家建议接种疫苗、戴面罩和使用围巾使气道湿化,以防止这些疾病。 Experts recommend vaccinations, masking, and using scarves to humidify airways to protect against these illnesses.