Low immunity, overwhelmed hospitals fuel Covid-19 deaths in ageing Japan
Low immunity against Covid-19 and a growing population of frail elderly is driving a surge in coronavirus deaths in Japan which had, for a long time, upheld some of the strictest pandemic restrictions.
Japan once boasted one of the lowest Covid mortality rates, but the figure has been trending upwards since the end of 2022.
It hit an all-time high on 20 January this year, surpassing the UK, US and South Korea, according to Oxford University's Our World in Data.
Japan was largely closed to foreign visitors from 2020 till mid-June last year. It opened its borders cautiously - at first, travellers had to be part of a package tour, buy medical insurance, and be masked in all public places.
Some schoolchildren had meals in silence for over two years as schools imposed bans on lunchtime conversations.
As restrictions are eased, however, the population's low Covid immunity may be causing infections to spike, local health experts told the BBC.
Most of the latest Covid fatalities are elderly people with underlying medical conditions, experts said. This contrasts with the initial spate of deaths that were due to pneumonia and were often treated in intensive care.
"It is also difficult to prevent these deaths by treatment," says Hitoshi Oshitani, one of Japan's leading virologists, adding that Covid was only the trigger.
"Due to the emergence of immune-escaping variants and sub-variants and the waning of immunity, it is getting more difficult to prevent infections," he says.
"Immune escape" is when the human host's immune system becomes incapable of responding against an infectious agent. New versions of the Omicron variant are known to be masters of immune evasion.
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https://www.bbc.co.uk/news/world-asia-64494095