TNPSC Thervupettagam

New Covid-19 Variant NB.1.8.1

May 29 , 2025 7 hrs 0 min 61 0
  • New Covid-19 subvariants NB.1.8.1 and LF.7 has been detected in Tamil Nadu and Gujarat.
  • Both NB.1.8.1 and LF.7 are sub-lineages of the JN.1 variant, which remains the most dominant strain in India.
  • NB.1.8.1 carries notable spike protein mutations called A435S, V445H, and T478I.
  • The JN.1 lineage itself carries the L455S mutation.

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