The 24-hour nucleic acid detection points in Yizhuang are: Beijing Xingyun Medical Laboratory Co., Ltd., Beijing Aipuyi Medical Laboratory Center and Beijing Annoouda Medical Laboratory Co., Ltd. to provide 24-hour nucleic acid detection services.

Nucleic acid is one of the most basic living substances in all animals, plants and microorganisms.

It is divided into deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), both of which are biomacromolecules polymerized by many nucleotide monomers. Simply put, a nucleic acid is a piece of code in a virus. It may be DNA or RNA, but for COVID-19, its code is RNA.