In India, the Delta variant has been responsible for a sharp increase in the number of infections, illnesses and fatalities. The health system there is at breaking point. In the meantime, the Delta variant has also been discovered in other parts of the world, especially in the UK, which is a country where virus variants are monitored with exemplary thoroughness. It is expected that the Delta variant will supplant Alpha (B.1.1.7), which has been the most widespread variant so far. According to official data, Delta is currently present in nine out of ten samples sent for analysis.