Instructions
Individual users of the kit can collect a sample from the nasal cavity and place it on a test board to determine yin and yang without professional help. If there are two red bands indicating positive, be sure to go to the screening station for nucleic acid testing. Even if there is only one red strip indicating negative, as long as infection is suspected or suspected symptoms are found, formal nucleic acid testing is required.
Hot Tags: new crown self-test kit, China, manufacturers, suppliers, factory, wholesale, cheap, low price,