2020年4月25日土曜日

医療、介護従事者に徹底した新コロ検査を!



病院、老人ホームを感染の館にしないために、医療、介護従事者に徹底した検査というのは絶対的に必要だね。


Report 16: Role of testing in COVID-19 control


Widespread testing of symptomatic suspected COVID-19 cases in the community would support
monitoring of the epidemic, but is unlikely to help reduce transmission since individuals with
suspected COVID-19 are already advised to self-isolate.

In Wuhan, China, sustained reductions in the reproduction number
23 April 2020 Imperial College COVID-19 response team
DOI: Page 6 of 13
were achieved through quarantine of suspected COVID-19 cases based on symptoms and universal,
door-to-door symptom surveys (9).

武漢なんかでも、検査してからじゃなくて、症状出たやつを徹底的に隔離したわけで、検査したからといって感染拡大を防止できるわけではないわけだね。

希望する人にはすべて検査を、とか、不安だから念の為検査を、みたいに言ってた上氏とか、kazukazuさんは間違っていたわけだね。



Even without recursive tracing, testing of contacts would require substantial test numbers and
significant investment of laboratory and staff resources
. For example, in England between 18 March
and 16 April 2020 on average 15,000 calls to the NHS 111 helpline were triaged as potential COVID-19
cases each day (35). Although lockdown was ordered on the 23 March, reducing reported daily
contacts from about 11 to just 3 on average (36), this would still imply a need for about 15,000 x 4 =
60,000 tests per day
to support testing of suspected cases and their contacts. Moreover, testing of
contacts would not reduce their contribution to transmission unless it promoted individual adherence
to self-isolation and infection control (i.e. a behavioural effect).
In the longer term, when the incidence of COVID-19 is much lower and lockdown lifted, testing could
target suspected cases only, with a focus on timely results. Substantial testing would still be required,
however, because of the continued incidence of ILI and the return to higher numbers of daily contacts.
For example, during a typical influenza season, daily ILI rates in England are about 2,400 (4 per
100,000) based on GP consultations and substantially higher based on self-reported symptoms (37),
therefore requiring >29,000 tests daily to exclude SARS-CoV-2 infection

感染容疑者とその接触者を検査していたら、いまでも6万件、ロックダウンが解除されたら、感染容疑者だけ検査したとしても、2万9千件以上も検査する必要がでてくるだろう、と。 

医療介護従事者については、症状の有無に関わらず検査は必要だし、隔離から開放する場合にも検査は有用というSummary の内容と”could”” would” という語の使用からすると、毎日6万件、2万9千件の検査が必要になるかもしれないが、相当の量の検査と検査設備と人員の投資が必要になるので、実際にはそこまでやる必要がない、という含意じゃないの?

ちなみに、検査して労働許可みたいのに対しては、精度が悪ければ危険がある、免疫ができるか、どうか、できてもどれだけ続くかわからない。労働許可を取ろうとして偽造の許可証を作る人がでてくるなどの問題を指摘している。






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