JN.1: The Present Public Health Concern Pertains to the Emergence of a Novel Variant of COVID-19
Sakif Ahamed Khan, Mohiuddin Ahmed Bhuiyan, Syed Masudur Rahman Dewan
Abstract
Dear Editor, JN.1 is an emerging variant of the COVID-19 virus.Does it have the capacity to pose a substantial threat to public health worldwide?The first confirmed case of the Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) virus was detected in December 2019 in the city of Wuhan, China.The virus swiftly disseminated worldwide, resulting in a COVID-19 pandemic. 1SARS-CoV-2 has undergone genetic alterations, which have led to the development of distinct traits and changes in how the disease transmits and its severity. 2Consequently, this has resulted in increased rates of infection transmission.The World Health Organization (WHO) and the Centre for Disease Control Prevention (CDC) have found several variants, specifically Variants of Concern (VOCs), which are referred to as alpha, beta, gamma, and delta.The most recent addition to this list is the Omicron variant.The BA.2.86 variant of the Coronavirus, which is a sub-variant of Omicron, was first identified in Denmark in August 2023. 3he detection of JN.1 in the United States occurred in September 2023, 4 subsequent to its initial divergence from the parent strain, BA.2.86.JN.1 bears resemblance to BA.2.86, but, it exhibits a unique mutation (L455S) in the spike protein.The JN.1 variant is responsible for a growing proportion of infections and is currently the predominant variety in circulation in the United States. 5ccording to WHO, until December 17, 2023, there have been more than 772 million confirmed COVID-19 cases and approximately 7 million fatalities recorded worldwide.By December 16, 2023, a total of 7344 JN.1 sequences had been submitted to GISAID from 41 countries.These sequences accounted for 27.1% of all available sequences worldwide for epidemiological week 48 (November to December 2023).The nations with the highest percentage of JN.1 sequences are France (20.1%, 1552 sequences), the United States of America (14.2%, 1072 sequences), Singapore (12.4%, 934 sequences), Canada (6.8%, 512 sequences), the United Kingdom (5.6%, 422 sequences), and Sweden (5.0%, 381 sequences). 6By December 24, 2023, the Health Ministry of India had recorded 63 instances of the JN.1 COVID-19 variant. 7N.1 was previously monitored within BA.2.86, the primary lineage categorized as a variation of interest (VOI).Nevertheless, there has been a surge in the number of reported cases of JN.1 in various countries during the past several weeks.This variant is now becoming increasingly common worldwide and accounts for the majority of BA.2.86 lineages reported to