Abstract: A method for detecting a single-stranded RNA virus in a sample includes: bringing a primer set into contact with a sample to perform a RT-LAMP reaction, wherein the primer set is designed based on a nucleotide sequence of a target RNA and a nucleotide sequence of a nucleic acid complementary to the target RNA, and includes following (i) to (v): (i) an FIP primer; (ii) a BIP primer; (iii) an F3 primer, which is an outer primer; (iv) a B3 primer, which is an outer primer; and (v) one or more additional outer primers, each additional outer primer having the same nucleotide sequence as an arbitrary region present on a 5? terminal side from the region B3 or the region F3 in the nucleic acid complementary to the target RNA. According to the present invention, a single-stranded RNA virus can be detected with high sensitivity.

Abstract: Disclosed are oligonucleotide primers that hybridize specifically with any base sequence designed from the base sequences of the N gene, RNA-dependent RNA polymerase gene, M gene, and S gene of SARS-CoV-2, a nucleic acid amplification method using said primers, a test method for SARS-CoV-2 infection by detection of nucleic acid amplification, and a COVID-19 test kit.

Abstract: An antenna device is equipped with a power supply part (21) and a communication part (31). The power supply part (21) is equipped with a first active electrode (23) and a first passive electrode (25), and a high frequency voltage is applied between the first active electrode (23) and first passive electrode (25) by a high frequency generator (27). The communication part (31) is equipped with a line part (33), which is electromagnetically coupled with an external device and connected at one end to a power supply point, and a terminal resistor (35) connected to the other end of the line part (33). A signal terminal of a communication device (37) is connected to the power supply point, and the ground terminal of the communication device (37) is connected to the terminal resistor. The antenna device has an overall sheet-like shape.