The World Health Organization (WHO) has identified the COVID-19 variant BA.2.86 as a ‘variant under monitoring’ due to its significant number of mutations. This designation reflects ongoing efforts to track and understand the evolution of the virus.

Surveillance and Monitoring

As of now, WHO is actively monitoring 3 variants of interest and 7 variants under monitoring. The organization emphasizes the importance of robust surveillance, sequencing, and reporting of COVID-19 to effectively manage its circulation and evolution.

Understanding Variant BA.2.86

WHO acknowledges the need for more data to fully comprehend the characteristics and spread of the BA.2.86 variant. However, the presence of multiple mutations raises concerns and highlights the importance of monitoring its behavior closely.

Emergence of Variant EG.5 (Eris)

Another variant, EG.5 (also known as Eris), has gained attention globally and is becoming dominant in certain countries like the United States and Britain. Its prevalence in new COVID-19 cases underscores the dynamic nature of virus mutations.

Impact of Variants

All viruses, including SARS-CoV-2, undergo changes over time. While most changes may not significantly alter the virus’s properties, certain mutations can affect factors like transmission rate, disease severity, and vaccine efficacy. Monitoring variants helps in assessing these impacts and adjusting public health measures accordingly.

WHO’s Approach

WHO has established specialized groups like the Technical Advisory Group on SARS-CoV-2 Virus Evolution to analyze variants’ characteristics and their implications on countermeasures. This proactive approach aids in identifying variants of interest and concern, guiding global monitoring efforts, and informing effective COVID-19 responses.

Global Monitoring System

Efforts have been made to strengthen global surveillance systems for detecting potential variants of interest or concern. Timely data sharing and adherence to established principles are crucial for addressing emerging mutations and mitigating their public health risks.

Future Preparedness

Continued monitoring of SARS-CoV-2 variants, including their spread in animal populations and persistent infections, remains essential in reducing unfavorable mutations and enhancing overall pandemic response strategies.

WHO’s Updated Definitions

In March 2023, WHO revised its tracking system and definitions for variants of concern, variants of interest, and variants under monitoring, reflecting ongoing advancements in understanding COVID-19 variants and their impact on public health.

WHO’s vigilance and collaborative efforts play a vital role in navigating the evolving landscape of COVID-19 variants and implementing effective measures to combat the pandemic.