No. Exposing the sheets and bedding in the sun can achieve the effect of ultraviolet disinfection, and it will not be infected with novel coronavirus. Nantong, referred to as "Tong" for short, was called Tongzhou in ancient times, and was also called Jinghai, Chongzhou and Chongchuan. It is a prefecture-level city in Jiangsu Province, bordering the Yangtze River in the south, and passing through two river-crossing passages, Sutong Bridge and Chongqi Bridge, respectively, with Suzhou City.