【備忘録】「東大早野氏誤訳論争」の源であるWHO『福島事故５年目のＦＡＱ』の #甲状腺がん に関する項目６の全訳＋「訳者あとがき」＋前後の議論

第一パラグラフ

Given the exposure to radioactive iodine during the early phase of the emergency, WHO specifically assessed the risk of thyroid cancer. The greatest risk was found among girls exposed as infants (i.e. < 1 year old) in the most affected area in the Fukushima prefecture.

Even if those levels of risk might not be clinically detectable, WHO anticipated that the thyroid ultrasound screening programme being conducted in Fukushima prefecture was likely to lead to an increase in the incidence of thyroid diseases due to earlier detection of non-symptomatic cases.

第二パラグラフ

There have been recent reports about thyroid cancer cases being diagnosed among children exposed to low doses of radioactive iodine as a result of the Fukushima accident. These reports should be interpreted with caution. （注：Evernote版では、@mamii_tanaka氏のコメントを参考に、"recent reports"を「直近では～報告がなされています」という訳出に修正。）

A large excess of thyroid cancer due to radiation exposure, such as occurred after the Chernobyl accident, can be discounted because the estimated thyroid doses due to the Fukushima accident were substantially lower than in Chernobyl.

Nevertheless, the highly-sensitive thyroid screening of those under 18 years old at the time of the accident is expected to detect a large number of thyroid cysts and solid nodules, 　注：Evernote版では、独自のレビューに基づき、「事故当時に行う１８歳未満の児童に対する」を「事故当時に１８歳未満だった児童に対する」へと修正しました。

including a number of thyroid cancers that would not have been detected without such intensive screening. Similar or even slightly higher rates of cysts and nodules were found in prefectures not affected by the nuclear accident.　注：Evernote版では、@Ccver1Piscc氏のコメントを参考に、"Similar or even slightly higher rates of cysts and nodules were found in prefectures not affected by the nuclear accident."を「これに類似した発症率、あるいは場合によってはこれを僅かに超える発症率の嚢腫や小結節の事例が、原発事故の影響を受けていない他県でも観測されています。」と修正しました。

The substantial number of cases that have already been observed in the Fukushima Health Management Survey have been considered likely due to the sensitivity of the screening rather than to radiation exposure. 　（注：Evernote版では、@mamii_tanaka氏のコメント/mami_tanaka/status/711656864337899520を採り入れ、「というよりもは」の「は」を削除して修正。）

Further analysis of epidemiological data being currently collected in Japan will be necessary to evaluate a potential attribution of thyroid cancer to radiation exposure.　（注：Evernote版では、@shanghai_ii 氏のコメント/shanghai_ii/status/711218305550290944を参考に、"potential attribution"を「起因する可能性」という訳出に修正。）

「訳者あとがき」