追加:第 2 节第 47 条(草稿占位条号),别吃淡水鱼虾做的鱼生,常吃过的去查一次肝吸虫
2026-10-14 起草。条号是占位,正式追加时按第 2 节当时的条数改。
四问:
- 普通读者会碰上吗?会。2020 年全国估计约 946 万人感染,近 1 亿人有感染风险,主要在广东、广西和东北。顺德鱼生、鱼生粥、醉虾在外地餐馆也有卖。
- 读者是不是普遍以为没事?是。流行说法是蘸醋、配白酒、加芥末能杀虫。国家食品安全风险评估中心 2026 年专门发了风险提示,点名这些调料杀不死。
- 动作是新的吗?是。全书原来没有生吃淡水鱼和寄生虫的条目(grep「吸虫」「鱼生」「生鱼」在 book/ 和 docs/ 均无命中)。
- 有官方原始来源吗?有:IARC 专著、国家疾控局等 15 部门方案、国家食品安全风险评估中心提示、中国疾控寄生虫病所科普,加同行评审荟萃。
地域性的考虑:只集中在几个省,但这几个省人口多、感染率高(广西接近 9%),外地也能吃到。所以值得写。成本标签没有「人群」值能表达地域,按 CLAUDE.md 不加。
1. IARC 1 类致癌、致胆管癌
- 题录:IARC Monographs Vol. 100B (2012),章节「Opisthorchis viverrini and Clonorchis sinensis」,第 341–370 页(PDF 页眉页码核对)。
- 取法:卷页面 https://publications.iarc.who.int/119(无头 Chrome 带代理取到下载链接),章节 PDF
https://publications.iarc.who.int/download/mono100B-13_new.pdf(curl 带代理,跳转到 S3 临时签名链接),pdftotext 逐字抽取。NCBI Bookshelf 版 NBK304354 本机遇到 reCAPTCHA,没用。 - 原文(5. Evaluation):「There is sufficient evidence in humans for the carcinogenicity of chronic infection with Clonorchis sinensis. Chronic infection with Clonorchis sinensis causes cholangiocarcinoma.」「Chronic infection with Clonorchis sinensis is carcinogenic to humans (Group 1).」
- 开会时间:「which met in Lyon, 24 February-3 March 2009」
- 1994 年为 2A:「The Working Group of the previous IARC Monograph on liver flukes (IARC, 1994) evaluated infection with C. sinensis as probably carcinogenic to humans (Group 2A)」
- 腌、熏也传染:「Humans or other fish-eating animals are infected through the ingestion of raw or undercooked (salted, pickled, or smoked) freshwater fish that contains metacercariae.」
- 广东吃法:「In southern China and among the Cantonese population in the Hong Kong Special Administrative Region, raw fish is traditionally eaten after being dipped in rice porridge. Alternatively, large fish are sliced and eaten with ginger and garlic known as "yushen."」
2. 胆管癌风险 4.8 倍(Shin 2010)
- 题录:Shin HR 等 (2010). Cancer Science 101(3):579-585. https://doi.org/10.1111/j.1349-7006.2009.01458.x(PMID 20085587),摘要经 Europe PMC REST 取得。
- 原文:「The meta-analysis of published literature revealed the summary relative risks of infection with liver fluke (both Opistorchis viverrini and Clonorchis sinensis), hepatitis B virus, and hepatitis C virus to be 4.8 (95% confidence interval [95% CI]: 2.8-8.4), 2.6 (95% CI: 1.5-4.6), and 1.8 (95% CI: 1.4-2.4), respectively - liver fluke infection being the strongest risk factor for cholangiocarcinoma.」
- 「胆管癌本来少见」:「Cholangiocarcinoma is relatively rare, but high incidence rates have been reported in Eastern Asia」
- 注意:4.8 是两种肝吸虫合起来的数,条目里写明了「把东南亚的另一种肝吸虫也算在内」。
3. 36 项研究的汇总(Xia 2015)
- 题录:Xia J, Jiang SC, Peng HJ (2015). PLoS ONE 10(7):e0132673. https://doi.org/10.1371/journal.pone.0132673(PMC4506038),摘要和全文 XML 经 Europe PMC 取得。
- 摘要原文:「A total of 36 studies were included in the meta-analysis. Significant associations were found between liver fluke infection and cholangitis or cholecystitis (RR: 7.80, P<0.001; OR: 15.98, P<0.001), cholelithiasis (RR: 2.42, P = 0.03; OR: 4.96, P = 0.03), hepatocellular carcinoma (OR: 4.69, P<0.001) and cholangiocarcinoma (RR: 10.43, P<0.001; OR: 4.37, P<0.001). In addition, heavier infection was significantly associated with higher incidence of hepatobiliary pathological changes (P<0.05). However, cirrhosis was not significantly associated with liver fluke infection (RR: 3.50, P = 0.06; OR: 5.79, P = 0.08).」
- 全文给的可信范围:「The overall RR for the association between liver fluke infection and cholangiocarcinoma was 10.43 (95% CI: 2.90–37.47, P<0.001), and the association was significant. The overall OR for the association of cholangiocarcinoma with liver fluke infection was 4.37 (95% CI: 2.84–6.72, P<0.001)」
- 同样混了泰国的麝猫后睾吸虫研究(纳入表里两种都有)。
4. 感染人数和地区
- 2014–2015 全国调查:Qian MB 等 (2019). Infectious Diseases of Poverty 8:86. https://doi.org/10.1186/s40249-019-0599-4(PMC6775666),全文 XML 经 Europe PMC 取得。原文:「which might explain the reduction in the prevalence to 0.47% corresponding to 6.0 million people according to the latest national survey in 2014–2015 [ 51 ]. The most afflicted areas, with prevalence rates over 1%, are two provinces in the south-eastern part of the People's Republic of China (Guangdong and Guangxi) and two in the north-eastern part (Heilongjiang and Jilin)」。引文 51 是 Zhou XN《Report on the national survey of important human parasitic diseases in China (2015)》人民卫生出版社 2018,原报告没取到,分省数字按下面两份写。
- 2020 年模型推算:Qian MB 等 (2025). Journal of Infection 91(1):106528. https://doi.org/10.1016/j.jinf.2025.106528(PMID 40472937),摘要原文:「In 2020, population-weighted prevalence of 0.67% (95% Bayesian credible interval (BCI): 0.58%-0.77%) was estimated for C. sinensis infection in China, corresponding to 9.46 million (95% BCI: 8.22 million-10.88 million) persons under infection. High prevalence was demonstrated in southern areas, including Guangxi (8.92%, 95% BCI: 7.10%-10.81%) and Guangdong (2.99%, 95% BCI: 2.43%-3.74%). A conservative estimation of 99.13 million (95% BCI: 88.61 million-114.40 million) people were at risk of infection」
- 国家方案:国家疾控局等 15 部门《全国包虫病等重点寄生虫病综合防治实施方案(2024—2030 年)》,成文日期 2024-04-29,gov.cn 页面 https://www.gov.cn/zhengce/zhengceku/202405/content_6950309.htm,附件 PDF https://www.gov.cn/zhengce/zhengceku/202405/P020240510677043534615.pdf(pdftotext 可逐字抽中文)。政策库页面「发文字号」一栏为空,没写文号。附表 7「土源性线虫病和肝吸虫病防治目标推进表」按原始顺序抽出:「土源性 线虫病 肝吸虫病 / 四川 云南 海南 重庆 贵州 全国 广西 吉林 黑龙江 广东 全国 / 6.07% 6.01% 4.64% 2.57% 1.75% 1.01% 8.75% 4.38% 3.16% 2.95% 1.02%」,表注「基线数据为 2018—2022 年监测点平均感染率」。前六个是土源性线虫病,后五个是肝吸虫病(-layout 模式下「肝吸虫病」标签落在广西到广东之间,可对上)。监测点设在流行区,这个数不是全省人口感染率,条目写的是「监测点平均感染率」。
- 方案正文里查治的说法:「通过监测、干预点主动检测、医院普通门诊、专科门诊、健康体检等不同途径开展感染者查治。」
5. 酒、醋、芥末杀不死,冷冻和加热的条件
- 国家食品安全风险评估中心《关于慎食淡水生鲜食品预防肝吸虫病的风险提示》,重庆市疾病预防控制中心转载,发布日期 2026-02-03,https://www.cqcdc.org/index.php?a=shows&catid=179&id=3861(curl 直连取得)。原发站 cfsa.net.cn 本机无头 Chrome 返回空,没取到原页。
- 原文:「近期,我国部分地区报告了多例因食用淡水鱼生鱼片、生腌虾等生鲜水产品导致的肝吸虫感染病例。」「2.充分加热处理:烹饪食物时中心温度达到70℃以上并持续10分钟以上;」「1.酒、醋、芥末等调味料无法有效杀灭肝吸虫;2.冷冻处理需在-20℃以下持续冷冻至少7天才能灭活寄生虫;」「3.儿童感染可能影响生长发育。」
6. 治疗
- Qian MB 等 (2022). The Lancet Microbe 3(8):e616-e624. https://doi.org/10.1016/S2666-5247(22)00026-X(PMID 35697047),摘要经 Europe PMC 取得。原文:「Overall, 26 trials from 25 studies were included ... These trials included a total of 3340 participants.」「The WHO-recommended praziquantel regimen (25 mg/kg three times a day for 2 days) also showed a high predicted cure rate (98.5% [85.4-99.9]) in C sinensis infection」「A low quality of evidence was demonstrated in most studies, especially those published before 2000.」
- 中国疾控寄生虫病所《华支睾吸虫病(肝吸虫病)防治知识》,广东省疾控转载,2020-09-27,https://cdcp.gd.gov.cn/jkjy/jkzt/jscbfz/content/post_3439516.html。原文:「轻度感染者可采用总量75 mg/kg体重,3次分服,疗程1天。中、重度感染者的总剂量可达120~150 mg/kg体重,6次分服,疗程2 天。」(成本栏「一般吃 1 到 2 天」据此)「使用大剂量吡喹酮时,应先了解当地有无囊虫病流行,询问病史,因为吡喹酮同时杀死颅内囊尾蚴,导致严重不良反应。」「在粪便或胆汁内查到虫卵方可确诊」「华支睾吸虫轻度感染可无症状」「有条件的家庭,刀和砧板要生熟分开」
- 广东省疾控《吃鱼生没余生?警惕潜伏在鱼生中的“凶手”肝吸虫!》,2023-10-30,https://cdcp.gd.gov.cn/jkjy/jkts/content/post_4274108.html。原文:「可在人体内存活长达20~30年」「如果怀疑自己感染肝吸虫,可通过验大便查虫卵,配合B超和CT检查、血清学等辅助检查确诊。」
7. 海鱼刺身
- 香港食物安全中心《淡水鱼刺身的食物安全》,https://www.cfs.gov.hk/sc_chi/multimedia/multimedia_pub/multimedia_pub_fsf_148_01.html,curl 直连。原文:「海鱼中常见的线虫有异尖线虫,至于属吸虫的中华肝吸虫(图1)则常见于淡水鲩鱼及相关品种。」「买鱼时应光顾可靠的持牌店铺。」「高危人士,包括长者、幼童、孕妇及免疫力较低人士不宜生吃鱼类。」
证据等级与收益量级
- 证据等级 B:致癌结论是 IARC 1 类,风险数字有荟萃,但都是病例对照和跟踪记录,而且混了两种肝吸虫。「查了再治」对胆管癌和死亡的作用没有任何研究直接量化过。治疗那篇荟萃自评多数研究质量低。
- 收益量级大:按死亡率口径的阈值,相对风险 4.8 倍远超 20%,机械定为大。备注写明胆管癌本来少见、绝对风险增加不大。
没写进条目的
- 吡喹酮是不是处方药、验大便的价格:没查到能逐字核对的官方说法,成本栏只写「费用各地不同」「按医生开的剂量」。
- 治疗后能把胆管癌风险降多少:没找到人群数据,不写。IARC 里只有仓鼠实验。
- WS 309《华支睾吸虫病诊断》标准原文没取,诊断方法按寄生虫病所科普写。
- 媒体报道的河源一家人、5 人聚餐感染的案例(央广网等)没收:已有国家食品安全风险评估中心提示说明「发生过」,不需要媒体报道。
主任务入库时的改动(2026-10-14)
- 收益量级由「大」改为「中」:约 4.8 倍是染上和没染上的比较,不是这条做法能少多少病,和第 2 节第 46 条(黄曲霉毒素)同样凭判断定,备注已同步改写。