Why is the epidemic situation in Suzhou suddenly serious?

Because of overseas input.

This round of epidemics in Suzhou, Jiangsu, Haote, and XX are all local epidemics caused by new imported sources from abroad.

At present, the epidemic is caused by COVID-19, but Omicron mutant is the main epidemic strain. At present, the domestic epidemic is rebounding, which is caused by COVID-19, so it is called novel coronavirus, because its shape is similar to a crown.