Development of Two Loop-Mediated Isothermal Amplification Assays for Rapid Detection of and Genes in .

is an important zoonotic pathogen that poses a serious threat to the pig industry and human health. The massive use of macrolides has led to the emergence of resistance in , and is suspected to be a reservoir of antimicrobial resistance genes. The mechanism to macrolide resistance in is mainly due to and . In this study, loop-mediated isothermal amplification (LAMP) methods were developed to detect and genes in through turbidimetry detection. The sensitivity and specificity of the LAMP reactions were determined. All results of LAMP and polymerase chain reaction (PCR) assay were compared to determine whether LAMP method was accurate and reliable. The results showed that all 100 nonstreptococcus clinical isolates tested negative, indicating the high specificity of LAMP assays. The detection limit of LAMP assay was 1 fg per reaction, and 10-10-fold lower than those of conventional PCR methods. Evaluation of the performance of the LAMP assay in clinical strains revealed a good consistency between LAMP and PCR assays. In conclusion, LAMP assays are specific, sensitive, and rapid methods to detect and in .