The delta variant drove a disastrous second wave in India. While alpha was between 43 and 90 per cent more transmissible than earlier variants, delta - the driver of India's devastating second wave and Sydney's current mass-outbreak - could even be between 30 and 100 per cent more transmissible than alpha. "If such variants arise, they would have a large advantage over other variants in a largely vaccinated population." Wellington escaped a Covid-19 outbreak last month, when an Australian man infected with the delta variant visited the city, triggering a testing surge. What do we know about the #COVID19 Delta variant so far?

Source: New Zealand Herald July 13, 2021 05:52 UTC