Delta variant: is it serious?

You bet. Health authorities and experts keep reminding us that delta variant represents the ‘greatest threat’ to the nation’s effort of eliminating Covid-19. Some experts even warned us that the Delta variant is deadlier than the original Alpha variant. I have done a little research and found that some of the experts’ assertions seem unfounded.

We all know that the Delta variant was first identify in Maharashtra (India) in October 2020. Since then, the variant has been found in more than 77 countries or territories in the world [1]. In the United States alone, Dr. Anthony Fauci stated that the variant accounted for 20% of total Covid-19 cases. In the UK, it was reported that over the past 28 days there have been 38,000 cases of Delta variant (BBC 20/6/21), making it the dominant strain of the coronavirus over there.

We are told that the Delta variant is highly contagious. The New South Wales Premier, Ms Gladys Berejiklian said that “Literally people coming, not even physically touching each other, but literally fleetingly coming into the same air space.” Professor Nancy Baxter (University of Melbourne) echoed that scary warning: “The spread is more likely if you’re close to the person [but] there’s still a potential for virus particles to be in the air, and breathed in by someone passing by.” Scary indeed.

However, I am not comfortable with that kind of statements which sound like a scaremongering tactic rather than enlightening the public. A relative difference between 0.01 and 0.02 (ie, 2-fold difference)…