These shields on workers' dining tables have been installed since the outbreak of Covid-19 in Vietnam. Besides ensuring safety of workers' meals, epidemic prevention at the factory has been carried out seriously. The food production has been strengthened than ever. In addition, with a large volume of cargo trucks regularly entering and leaving factories, monitoring of epidemic prevention right from entrance is extremely important. Many businesses require mandatory medical declaration at the entrance gate, thereby reducing the risk of bringing pathogens into the factory. Ho Chi Minh City currently has 18 export processing zones, industrial zones in operation, with about 1,500 businesses and 300,000 workers. With the current complicated development of the pandemic, the risk of disease transmission is still high. Therefore, it is very important to raise the awareness of self-protection for workers and factories, in order to help the city to achieve the dual goal of both production and epidemic prevention./.