Supermarkets, online groceries and food processors are working round the clock in Shanghai to supply locked-down areas, but getting the food to people's homes is anything but easy right now. The demand for public transportation has decreased, as an increasing number of people are staying home under the city's stricter precaution measures. But now, the buses have proved to be very important in the fight against the COVID-19 outbreak. More than 100 drivers have volunteered to deliver vegetables to communities and residences.