No BA.4 variant spread in Tamil Nadu, first patient fully recovered: Health Secy

Tamil Nadu's first case of covid-19 Omicron BA. 4 sub-lineage variant is a teenager and a part of a four-member family with no travel history and had taken two jabs of the vaccine against the virus. The 19-year-old college student from neighbouring Chengalpattu district, who had contracted Omicron BA.4 sub-lineage variant has fully recovered and this strain has not spread to other parts of Tamil Nadu, Dr J Radhakrishnan said.