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COVID-19 delta variant how deadly is it?-by Dr Harold Gunatillake A variant of concern carries the highest threat perception of a coronavirus variant, which is characterized by increased infectivity, transmissibility, or resistance to vaccine and treatment Unlike the original COVID-19 virus, the delta and the Kappa variants seems to be spreading much faster and more infectious. The variant seems to be in the air surrounding an infected person, and just another stranger passing by could get infected. Droplet infection through coughing, sneezing or direct touch were the key reasons for the social distancing, but unfortunately that restriction alone is insufficient to prevent the spread. This is what happened in Bondi Junction Westfield Shopping Centre in Sydney Australia, a few days back. This variant transmits faster than the other variants, but supposed to be dangerous, and become the dominant strain. Further, there are so many people not vaccinated, and this strain ...