来自阳光的紫外线辐射：2020年大流行期间SARS-CoV-2传播的关键缓和因素
Ultra Violet radiation from sunlight: A key moderating factor in the spread of SARS-CoV-2 during the pandemic of 2020
摘要：
于二零二零年五月至六月期间，COVID-19病例减少，大部分国家的封锁措施已解除。与热带地区相比，欧洲和其他温带国家的COVID-19病例最近激增（第二波），这表明太阳辐射可能发挥了作用。我们假设紫外线辐射的影响可能是减缓COVID-19在各国传播的重要因素。对7个热点城市（新德里、孟买、米兰、马德里、纽约、墨尔本和悉尼）的紫外线辐射数据进行了回归分析，并记录了每日COVID-19病例。全球太阳紫外辐射值冬季较低，夏季较高。一般而言，在紫外线辐射剂量较低（0. 5 - 3. 7 kJ m-2）的冬季月份，每日新登记的COVID-19病例较高。病例开始下降，夏季发病，对应于增加紫外线辐射（2.5-6.7千焦耳m-2）。我们的研究表明，天然紫外线辐射可能是减缓COVID-19病例传播的重要决定因素。自封锁解除以来，自然阳光中的紫外线辐射作为SARS-CoV-2消毒剂的重要性不容忽视;此外，它可以被视为COVID管理的一个因素。
英文摘要：
Lockdowns imposed in most of the countries were lifted following a decline in the COVID-19 cases towards May-June 2020. A recent surge (second wave) in the COVID-19 cases in Europe and other temperate countries as compared to the tropical regions suggests the likely role of solar radiation. We hypothesized that ultraviolet radiation's effect might be a significant factor moderating the spread of the COVID-19 across countries. Regression analysis was done for the UV radiation data for seven hotspot cities (New Delhi, Mumbai, Milan, Madrid, New York, Melbourne and Sydney) with the daily COVID-19 cases. Global erythemal UV radiation values were lower during winter and higher during summer. In general, the daily new COVID-19 cases registered were higher during the winter months having low UV radiation dose (0.5-3.7 kJ m-2). Cases began to decline with summer onset that corresponded to increased UV radiation (2.5-6.7 kJ m-2). Our studies suggest that the natural UV radiation could be a strong determining factor moderating the spread of COVID-19 cases. The importance of UV radiation in natural sunlight as a disinfectant for SARS-CoV-2 cannot be ignored since the lockdowns were lifted; further, it can be considered as a factor for COVID management.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
