Mansukh Mandaviya, India’s health minister, said on Tuesday that a government panel of experts was investigating a Delta coronavirus subvariant, AY.4.2, that had been detected in the United Kingdom.
The United Kingdom’s Health Security Agency announced last week that it was looking into AY.4.2 because it was potentially more transmissible than Delta, though there was no evidence that it caused more severe disease or rendered vaccines ineffective.