| ︽ ︾ | ︵Delta︶ | 100 0.6 | 5 | 1 3 | | ︽ ︾ | | ︽ ︾ | | | PCR | | | 1 | 40% | ︽ ︾ | | | | | CT CT | | | ︽ ︾ | | | | | | | CT | | | | ︽ | | ︾ | ︽ ︾ | ● | ● | ● | ● | ● | ● | ● | ● | | ● | | | | | |