Detection of pathogenic Leptospira spp. by RPA-NALFIA targeting lipL32 gene

Background: Lack of available sensitive point-of-care tests is one of the key challenges limiting the early point-of-care diagnosis of leptospirosis.Previously, a Recombinase Polymerase Amplification (RPA) and clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated protein 12a (CRISPR/Cas12a) lipL32 detection platform with high sensitivity and specificity was developed. However, its turnaround time is between one and two hours, and two reactions are required.