A New Group of Omicron Variants Spreading in the US
FLiRT, a group of new Covid-19 variants derived from the Omicron JN.1 lineage, is rapidly spreading in the United States, raising concerns about a potential summer infection wave. These variants, particularly KP.2 and KP.1.1, are believed to be more contagious than previous Omicron variants, though the severity of symptoms remains similar.
Increased Transmissibility and Immune Evasion
Dr. Nikhil Modi, a Senior Consultant at Indraprastha Apollo Hospital, explains that FLiRT variants, especially KP.2, exhibit increased transmissibility compared to earlier Omicron sub-variants. They also demonstrate the ability to evade immunity acquired through prior infections and vaccinations, although the extent of this evasion is still under investigation.
Symptoms associated with FLiRT infection are similar to those of other Omicron sub-variants, including sore throat, cough, fatigue, nasal congestion, runny nose, headache, muscle aches, fever, and potential loss of taste or smell.
No Need for Panic in India
Despite the emergence of FLiRT, experts believe there is no reason for panic in India. Dr. Modi highlights that the majority of the Indian population has acquired immunity through natural infections, and the country's vaccination program has been extensive. Additionally, the use of mRNA vaccines, which have been associated with impaired immune function in some individuals, has not been as widespread in India as in the US.
Importance of Precautions and Vaccination
Dr. M Wali, a Senior Consultant at Sir Ganga Ram Hospital, emphasizes the importance of continued vigilance and adherence to preventive measures such as mask-wearing, social distancing, and proper cough etiquette. He also recommends influenza vaccination for individuals above 45 years old and children, as influenza-like illnesses may coincide with Covid-19.
Experts agree that future vaccination formulations should be aligned with WHO guidelines and designed to address emerging variants like KP.1.1. By staying informed, practicing preventive measures, and getting vaccinated, individuals can protect themselves against FLiRT and other emerging variants.