南昌一家工厂的工人们正在生产医用防护口罩, Jiangxi province. [胡国林 摄/中国日报] 一个视频, 声称口罩的灭菌过程会在产品上留下致癌物质, 上周引起了公众的担忧. 所以, 口罩生产过程中到底发生了什么? 这真的值得担忧吗? 1. What is used to …

  Delta Variant Symptoms Are Similar The Delta strain does have similar symptoms to the original COVID strain but there are some important differences. 迄今为止, 味觉和嗅觉丧失并不是 Delta 变种的常见症状. 与 Delta 相关的常见症状是: • Sore throat • Runny nose • Fever • Headaches While fever …