Experts from around the world contend that JN.1, the most recent Covid-19 variant from the Omicron lineage that is forming a fresh worldwide wave, signals “very serious evolution” of the Covid virus.
JN.1, which is presently found in around 41 countries, was designated as a variation of interest (VOI) by the World Health Organization (WHO) because of its rapid proliferation.
August saw its initial detection in Luxembourg. According to the WHO, JN.1 will make respiratory illnesses more common in many nations.
The WHO has “just called JN.1 a VOI (variant of interest), and that just doesn’t cut it, with the growth advantage this variant has demonstrated. It is just extraordinary”, Dr. Eric Topol, founder and director of the Scripps Research Translational Institute in California,US, was quoted as saying to Fortune.
JN.1 is a descendent lineage of BA.2.86, with the earliest sample collected on August 25, 2023. In comparison with BA.2.86, JN.1 has the additional L455S mutation in the spike protein, making it more transmissible.
“JN.1 represents ‘a very serious evolution of the virus’. And it isn’t over,” Dr. Michael Osterholm, Director of the University of Minnesota’s Center for Infectious Disease Research and Policy (CIDRAP), was quoted as saying.
“JN.1 is an all new variant with numerous changes that had never been seen in any commonly circulating lineage before. This is unlike other recent variants, which were merely a few mutations from their predecessor,” Dr Rajeev Jayadevan, co-chairman of the National Indian Medical Association Covid Task Force, told IANS.
“Therefore, the disease patterns from an immune evasiveness and spread capability of this variant needs careful attention,” Dr Jayadevan added.
He defined immunological invasiveness of a variety as the virus’s capacity to subdue an individual’s preexisting immune response.
According to the specialists, JN.1 most certainly marks a new phase in the evolution of pandemics, following the main Covid variations like Alpha, Delta, and Omicron. JN.1 has brought about “a new era,” according to Ryan Gregory, a biology lecturer at the University of Guelph in Canada.
The highly transmissible variant is “on track to become the lineage from which most variants are descended for the foreseeable future”, Gregory was quoted as saying to Fortune.
Maria Van Kerkhove, WHO’s Covid-19 technical lead said that the next sub-lineages of the Covid virus can “come from JN.1”.
“But we could also see something quite different. We could see something like an Omicron again,” she said.
Spource:IANS