Carrying out mass tests on the asymptomatic population could prove to be useless

日本のテレビを見ていないので分からないのですが、日本では全員の検査を主張する声ってそんなに根強いのでしょうか？インフル検査のように、症状がある人は念のためみたいな話ではなく。

— kazukazu88 (@kazukazu881) March 18, 2020

kazukazu88さんがリツイート

コロナウイルスが猛威をふるうイタリア、最初の死者を出した村で、村民3300人の全員のウイルステスト（2回）を行い、症状のない感染者まで発見して対処する試行を行ったところ、新たな感染者の発生を抑制する事ができたとの記事。 https://t.co/JRoE3CLrID

— Norio Nakatsuji (@norionakatsuji) March 19, 2020

“Here there were the first two cases. We tested everyone, even if the ‘experts’ told us this was a mistake: 3,000 tests. We found 66 positives, who we isolated for 14 days, and after that 6 of them were still positive. And that is how we ended it.’

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これが、検査やれやれ派の理想でしょうね。全員検査。無症状でも、陽性がでたら、１４日間隔離。それでおしまい。無症状でも感染源になりうるーーというより、感染するケースで大半は無自覚感染者から、とも言われるーーーから非常に効果的・・・のように思える。　ところが、

However, according to some, the problems of mass tests are not only of an economic nature (each swab costs about 15 euros) but also at a organisational level.

On Tuesday, the WHO representative, Ranieri Guerra, said: “Director General Tedros Adhanom Ghebreyesus has urged the identification and diagnosis of suspected cases and symptomatic contacts of confirmed cases to be increased, as much as possible. At the moment, the recommendation to carry out mass screening has not been suggested.”

Massimo Galli, professor of infectious diseases at the University of Milan and director of infectious diseases at the Luigi Sacco hospital in Milan, warned carrying out mass tests on the asymptomatic population could however prove to be useless.

“The contagions are unfortunately constantly evolving,” Galli told the Guardian. “A man who tests negative today could contract the disease tomorrow.

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WHOは、いまのところ、大量検査実施を推奨していない。無症状の人たちまで大量検査しても無駄になりうる、と。感染はつねに進行中であり、今日陰性でも明日には陽性になっているかもしれないんだ、と。