The XBB 1.16 variant is the primary cause of the increase in cases among children and adults
This variant is showing immune escape and is capable of evading the immune system. It is infecting those who had covid infection..
A new Covid strain is causing concern behind the rise in infections in India, with research indicating it may be 1.2 times more infectious than the previous dominant sub-variant.
Known as Arcturus or Omicron subvariant XBB.1.16, the strain was first identified in January and has been under surveillance by the World Health Organization (WHO) since March 22.