Evaluation of three commercially-available chikungunya virus immunoglobulin G immunoassays

• Main Authors: Pablo M. De Salazar, Anne Marie Valadere, Christin H. Goodman, Barbara W. Johnson
• Format: Article in Journal/Newspaper
• Language: English; Spanish; Portuguese
• Published: Pan American Health Organization 2017
• Subjects: Virus chikungunya; juego de reactivos para diagnóstico; diagnostic; inmunoensayo; técnicas para inmunoenzimas; inmunoensayo de polarización fluorescente; Región del Caribe; Américas; Medicine; R; Arctic medicine. Tropical medicine; RC955-962; Public aspects of medicine; RA1-1270; Arctic
• Online Access: https://doaj.org/article/8e77f9c52eea478b88b70232934e32d8

ABSTRACT The emergence of chikungunya virus in the Americas means the affected population is at risk of developing severe, chronic, rheumatologic disease, even months after acute infection. Accurate diagnostic methods for past infections are essential for differential diagnosis and consequence management. This study evaluated three commercially-available chikungunya Immunoglobulin G immunoassays by comparing them to an in-house Enzyme-Linked ImmunoSorbent Assay conducted by the Centers for Disease Control and Prevention (Atlanta, Georgia, United States). Results showed sensitivity and specificity values ranging from 92.8% – 100% and 81.8% – 90.9%, respectively, with a significant number of false-positives ranging from 12.5% – 22%. These findings demonstrate the importance of evaluating commercial kits, especially regarding emerging infectious diseases whose medium and long-term impact on the population is unclear.