Company employees spend a long time nucleic acid, how to send a notice to control?

Note: 48-hour nucleic acid code and scanning code are required to enter the park. Remember to detect nucleic acid in advance, and control the nucleic acid detection within 30 minutes when there are few people in the queue. Don't take up too long working hours to affect normal production.

Notice sample: Hello, all staff. During the epidemic prevention and control period, a 48-hour negative nucleic acid certificate is required to enter the park. Please take time off for nucleic acid testing. If you go out to test nucleic acid during office hours, please control it within 30 minutes. Thank you.