Chinese state media reports that the Guangzhou port "has seen limited impact on logistics and trade so far, as the local government has put in place proactive epidemic control measures to reduce the potential impact." of the outbreak and rapidly curb the virus. Meanwhile, the ports of the coast also seem not to be affected; for example, the city of Dalian relaxed the measures at the end of last week. However, the city of Shanghai, home to China's largest container port, has just started a new round of restrictions, with mass testing, business closures and movement restrictions. In the past, these measures have caused severe disruption at both ports and airports, with truck traffic in particular being prevented from moving through the city.