ELISA-based immunoassay manufacturer New Life Diagnostics in Carlsbad produces infectious disease test kits from its production facility off Loker Avenue West in the 92010 ZIP code. The Dengue IgG, Leptospira IgG/IgM, and Leishmania microwell serum ELISA catalogs target tropical and travel-medicine diagnostics, a laboratory testing lane that sits upstream of the point-of-care rapid screenings performed at Perlman Clinic Carlsbad Village for symptomatic patients. Founded in 2015, the company manufactures all kits domestically at its Carlsbad facility and exports to clinical reference laboratories in Southeast Asia, South America, and Central America. Each ELISA microwell plate uses serum-based antibody detection calibrated to WHO reference standards for seroconversion thresholds in endemic regions. New Life's kit production runs alongside other diagnostic manufacturers on the Loker Avenue West corridor, adding infectious-disease serology to a Carlsbad biotech cluster whose clinical data informs health assessments at North County residential care communities including La Costa Glen. The Dengue IgG assay uses a 96-well plate format with horseradish peroxidase conjugate detection, yielding quantitative optical density readings within a 90-minute incubation protocol.