| Author | Fischer, Carlo | |
| Author | Bozza, Fernando A. | |
| Author | Merino, Xiomara Jeanleny | |
| Author | Pedroso, Celia | |
| Author | de Oliveira Filho, Edmilson F | |
| Author | Moreira-Soto, Andrés | |
| Author | Schwalb, Alvaro | |
| Author | de Lamballerie, Xavier | |
| Author | Martins Netto, Eduardo | |
| Author | Bozza, Patrícia T. | |
| Author | Sarno, Manoel | |
| Author | Brites, Carlos | |
| Author | Gotuzzo, Eduardo | |
| Author | Talledo, Michael | |
| Author | Drexler, Jan Felix | |
| Access date | 2020-03-18T20:14:23Z | |
| Available date | 2020-03-18T20:14:23Z | |
| Document date | 2020 | |
| Citation | FISHER, Carlo et al. Robustness of Serologic Investigations for Chikungunya and Mayaro Viruses following Coemergence. MSphere, v. 5, n. 1, p. 1-7, 2020. | pt_BR |
| ISSN | 2379-5042 | pt_BR |
| URI | https://www.arca.fiocruz.br/handle/icict/40395 | |
| Language | eng | pt_BR |
| Publisher | American Society for Microbiology | pt_BR |
| Rights | open access | pt_BR |
| Title | Robustness of Serologic Investigations for Chikungunya and Mayaro Viruses following Coemergence | pt_BR |
| Type | Article | pt_BR |
| DOI | 10.1128/mSphere.00915-19 | |
| Abstract | Since 2013, the arthropod-borne Chikungunya virus (CHIKV) has cocirculated with the autochthonous Mayaro virus (MAYV) in Latin America. Both belong to the same alphavirus serocomplex, termed the Semliki Forest serocomplex. The extent of antibody cross-reactivity due to the antigenic relatedness of CHIKV and MAYV in commonly used serologic tests remains unclear. By testing 64 CHIKV- and 37 MAYV-specific sera from cohort studies conducted in Peru and Brazil, we demonstrate about 50% false-positive test results using commercially available enzyme-linked immunosorbent assays (ELISAs) based on structural antigens. In contrast, combining ELISAs for CHIKV and MAYV significantly increased positive predictive values (PPV) among all cohorts from 35.3% to 88.2% for IgM and from 61.3% to 96.8% for IgG (P < 0.0001). Testing of longitudinally collected CHIKV-specific patient sera indicated that ELISA specificity is highest for IgM testing at 5 to 9 days post-onset of symptoms (dpo) and for IgG testing at 10 to 14 dpo. IgG cross-reactivity in ELISA was asymmetric, occurring in 57.9% of MAYV-specific sera compared to 29.5% of CHIKV-specific sera. Parallel plaque reduction neutralization testing (PRNT) for CHIKV and MAYV increased the PPV from 80.0% to 100% (P = 0.0053). However, labor-intense procedures and delayed seroconversion limit PRNT for patient diagnostics. In sum, individual testing for CHIKV or MAYV only is prone to misclassifications that dramatically impact patient diagnostics and sero-epidemiologic investigation. Parallel ELISAs for both CHIKV and MAYV provide an easy and efficient solution to differentiate CHIKV from MAYV infections. This approach may provide a template globally for settings in which alphavirus coemergence imposes similar problems.IMPORTANCE Geographically overlapping transmission of Chikungunya virus (CHIKV) and Mayaro virus (MAYV) in Latin America challenges serologic diagnostics and epidemiologic surveillance, as antibodies against the antigenically related viruses can be cross-reactive, potentially causing false-positive test results. We examined whether widely used ELISAs and plaque reduction neutralization testing allow specific antibody detection in the scenario of CHIKV and MAYV coemergence. For this purpose, we used 37 patient-derived MAYV-specific sera from Peru and 64 patient-derived CHIKV-specific sera from Brazil, including longitudinally collected samples. Extensive testing of those samples revealed strong antibody cross-reactivity in ELISAs, particularly for IgM, which is commonly used for patient diagnostics. Cross-neutralization was also observed, albeit at lower frequencies. Parallel testing for both viruses and comparison of ELISA reactivities and neutralizing antibody titers significantly increased diagnostic specificity. Our data provide a convenient and practicable solution to ensure robust differentiation of CHIKV- and MAYV-specific antibodies. | pt_BR |
| Affilliation | Charité-Universitätsmedizin Berlin. Corporate member of Freie Universität Berlin. Humbolt-Universität zu Berlin and Berlin Institute of Health. Institute of Virology. Berlin, Germany. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Instituto Nacional de Infectologia Evandro Chagas. Laboratório de Pesquisa Clínica em Medicina Intensiva. Rio de Janeiro, RJ, Brasil. | pt_BR |
| Affilliation | Instituto de Medicina Tropical Alexander von Humboldt. Universidad Peruana Cayetano Heredia. Lima, Peru / Departamento de Medicina. Facultad de Medicina. Universidad Peruana Cayetano Heredia. Lima, Peru. | pt_BR |
| Affilliation | Universidade Federal de Bahia. Complexo Hospitalar Universitário Professor Edgard Santos. Salvador, Brasil. | pt_BR |
| Affilliation | Charité-Universitätsmedizin Berlin. Corporate member of Freie Universität Berlin. Humbolt-Universität zu Berlin and Berlin Institute of Health. Institute of Virology. Berlin, Germany. | pt_BR |
| Affilliation | Charité-Universitätsmedizin Berlin. Corporate member of Freie Universität Berlin. Humbolt-Universität zu Berlin and Berlin Institute of Health. Institute of Virology. Berlin, Germany. | pt_BR |
| Affilliation | Instituto de Medicina Tropical Alexander von Humboldt. Universidad Peruana Cayetano Heredia. Lima, Peru / Departamento de Medicina. Facultad de Medicina. Universidad Peruana Cayetano Heredia. Lima, Peru. | pt_BR |
| Affilliation | Unité des Virus Émergent. Aix-Marseille University. INSERM. IHU Méditerranée Infection. Marseille, France. | pt_BR |
| Affilliation | Universidade Federal de Bahia. Complexo Hospitalar Universitário Professor Edgard Santos. Salvador, Brasil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Instituto Nacional de Infectologia Evandro Chagas. Rio de Janeiro, RJ, Brasil. | pt_BR |
| Affilliation | Universidade Federal de Bahia. Complexo Hospitalar Universitário Professor Edgard Santos. Salvador, Brasil. | pt_BR |
| Affilliation | Universidade Federal de Bahia. Complexo Hospitalar Universitário Professor Edgard Santos. Salvador, Brasil. | pt_BR |
| Affilliation | Instituto de Medicina Tropical Alexander von Humboldt. Universidad Peruana Cayetano Heredia. Lima, Peru / Departamento de Medicina. Facultad de Medicina. Universidad Peruana Cayetano Heredia. Lima, Peru. | pt_BR |
| Affilliation | Instituto de Medicina Tropical Alexander von Humboldt. Universidad Peruana Cayetano Heredia. Lima, Peru / Departamento de Medicina. Facultad de Medicina. Universidad Peruana Cayetano Heredia. Lima, Peru. | pt_BR |
| Affilliation | Charité-Universitätsmedizin Berlin. Corporate member of Freie Universität Berlin. Humbolt-Universität zu Berlin and Berlin Institute of Health. Institute of Virology. Berlin, Germany / German Centre for Infection Research (DZIF) / Martsinovsky Institute of Medical Parasitology. Tropical and Vector-Borne Diseases. Sechenov University. Moscow, Russia. | pt_BR |
| Subject | Brazil | pt_BR |
| Subject | ELISA | pt_BR |
| Subject | Peru | pt_BR |
| Subject | Arbovirus diagnostics | pt_BR |
| Subject | Cross-reactivity | pt_BR |
| Subject | Mosquito-borne disease | pt_BR |
| Subject | Outbreak | pt_BR |
| Subject | Serology | pt_BR |
