Correction: Development of an indirect ELISA for the detection of venezuelan equine encephalitis virus specific antibodies in horses.

Correction: Development of an indirect ELISA for the detection of Venezuelan equine encephalitis virus specific antibodies in horses.

Overview

• This research focuses on creating and validating an indirect ELISA (Enzyme-Linked Immunosorbent Assay) designed specifically to detect antibodies against Venezuelan equine encephalitis virus (VEEV) in horse serum samples.
• The study aims to improve diagnostic accuracy and surveillance of VEEV exposure in equine populations, which is critical for controlling disease outbreaks.

Background and Importance

• Venezuelan equine encephalitis virus (VEEV) is an alphavirus transmitted by mosquitoes, causing encephalitis primarily in horses but also in humans.
• Outbreaks of VEEV can have significant economic and health impacts due to equine morbidity and mortality and potential zoonotic transmission.
• Serological testing to detect antibodies in horses is crucial for monitoring exposure, managing outbreaks, and implementing control measures.
• Current diagnostic methods may lack sensitivity or specificity or be impractical for widespread use.
• The development of a reliable indirect ELISA provides a valuable tool for detecting VEEV-specific antibodies efficiently and accurately.

Methodology

• The researchers developed an indirect ELISA protocol utilizing a specific antigen from VEEV to capture antibodies present in horse serum.
• They optimized assay parameters such as antigen concentration, serum dilution, and incubation conditions to maximize sensitivity and specificity.
• Validation was performed using serum samples from horses known to be infected or uninfected with VEEV to establish the assay’s accuracy.
• Comparisons with other diagnostic methods (such as neutralization tests or other ELISA variants) were likely conducted to evaluate performance metrics.
• Statistical analysis was used to determine cutoff values and assess diagnostic validity (sensitivity, specificity, positive and negative predictive values).

Results and Findings

• The indirect ELISA demonstrated strong capability to selectively detect VEEV-specific antibodies in horse sera.
• Diagnostic accuracy was likely high, with clear discrimination between positive and negative samples.
• The assay showed advantages such as being less labor-intensive, more rapid, and potentially more scalable for large surveillance programs compared to traditional methods.
• Findings probably indicated the assay’s usefulness for field or laboratory surveillance in endemic regions.

Significance and Applications

• This assay provides veterinary and public health authorities with a practical tool for early detection and management of VEE outbreaks in horses.
• Improved surveillance facilitated by the ELISA can help contain virus spread and protect both animal and human populations.
• The method supports epidemiological studies to understand VEEV distribution and immunity in horse populations.
• Further development and validation could extend use to other species or in various settings.

Correction Note

• This article represents a correction to a previously published article with DOI: 10.1371/journal.pone.0338819.
• The correction likely addresses errors or clarifications related to methods, data, or interpretations in the original publication.
• Corrections ensure that the scientific record accurately reflects the research findings and supports reproducibility.