The Delta variant may have been responsible for nearly all Covid infections in Madhya Pradesh in June. That’s the indication from a genome sequencing report where every sample sent from MP last month was found to have been Delta — the mutation causing worldwide concern now.The Delta variant may have been responsible for nearly all Covid infections in Madhya Pradesh in June. That’s the indication from a genome sequencing report where every sample sent from MP last month was found to have been Delta — the mutation causing worldwide concern now.