<span style="color: #222222;">In Tamil Nadu, 12 people have been confirmed with Covid-19 infections due to the sub-variants of the Omicron virus known as the BA4 and BA5. This information was provided by the state health minister Ma.Subramanian in a media interaction today in Chennai. <br />''<br />''He said, a hundred and fifty samples from Covid-positive patients were sent for analysis to the Centre for DNA Fingerprinting and Diagnostics laboratory in Hyderabad. The results were obtained today which confirmed that eight samples show the Omicron's sub-lineage BA5 and the other four samples BA4. However, he added, all the twelve patients are now stable, and are under isolation.<br />''<br />'' Their contacts have been traced and are being monitored for any Influenza-Like-Illness (ILI) or Severe Acute Respiratory Infection (SARI) symptoms. All twelve patients are from in and around Chennai.<br />''<br />''Tamil Nadu registered its first BA4 variant in a patient from Navalur near Chennai on the 21st of May, who was also the country's second to get confirmed with the mutated Omicron virus. The minister Mr. Ma.Subramanian said she has however completely recovered now.</span><br />