New protective clothing and disinfection are required when entering and exiting each area. Sometimes it is necessary to change more than 10 times in half a day, and there is this feeling of not knowing where you are. It is reported that in the crude liquid workshop where the highest level of protection is mandatory, even skilled staff will take more than 10 minutes to put on at least four layers of protection gear, and some require the assistance of colleagues.

By last November, the first batch of finished products of the Corona-Vac were shipped from Sinovac Biotech's Daxing production base to Brazil, and I recorded the whole process of the vaccine shipment.

The photographer's narrative is translated by Zhang Lei.