Sweden’s chief epidemiologist has said “herd immunity” could be reached in Stockholm within weeks.
The strategy — basically, one that aimed at building a broad-base of immunity while protecting at-risk groups like the elderly — has proved controversial.
The strategy — basically, one that aimed to slow the spread of the virus while allowing some exposure to it, aiming to build immunity among the general population while protecting high-risk groups like the elderly — has been controversial, with some health experts likening it to playing "Russian roulette" with public health.
Herd immunity among a population is usually achieved through vaccination, it is seen to be reached when around 60% of citizens are deemed immune. Without a vaccine for the coronavirus available, however, scientists are looking at whether exposure to the coronavirus leads to longterm immunity; there have been cases of coronavirus reinfection, for example.
The major part of Sweden's 15,322 confirmed cases are in Stockholm and its surrounding areas, with very small incidences of the virus in the rest of Sweden — a country of around 10 million that has a low population density outside its urban hubs.
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