Heighten vigilance against imported cases: China Daily editorial chinadaily.com.cn | Updated: 2021-05-11 20:13 Staff members disinfect the Hubuxiang, a noted snack street, in Wuhan, Central China's Hubei province, April 11, 2020. [Photo/Xinhua] The worsening pandemic situation in India — with its daily COVID-19 infections around 400,000 over the past week — as well as in some of its neighboring countries such as Nepal which also saw a fast increase in cases, has raised the alarm for China to exercise the utmost vigilance against possible imported cases. Making the task especially challenging is the fact that the variant blamed for the massive resurgence of the novel coronavirus in India is highly transmissible. Any letup in vigilance against this invisible enemy of humanity may have devastating consequences. This is a bitter lesson many countries have already learned since the virus first struck.