Now the fourth wave This writer is the former editor of The Express Tribune and can be reached @Tribunian Medical experts are telling us that the Delta (Indian) variant of Covid-19 is now the dominant strain worldwide and is accompanied by a surge in deaths, almost entirely among unvaccinated people. In the last week, Pakistan reported 2,783 new coronavirus cases in 24 hours, taking the country’s Covid-19 tally to 986,668. The country’s death toll climbed to 22,760 after 39 more people succumbed to the deadly disease. Meanwhile, 1,000 patients recovered from the deadly disease in a day taking total recoveries to 918,329. According to the National Command Operation Center (NCOC), total active Covid-19 cases across the country were reported to be 45,579.