27-017 · EVIDENCE B · SOURCE-SENSITIVE
During pregnancy, you do not need to rehome a cat; delegate litter cleaning and prevent infection through food and soil hygiene
怀孕了不用把猫送走，猫砂换别人每天铲，肉要做熟、碰土戴手套
Delegating litter cleaning costs nothing; disposable gloves are inexpensive if no one else can do it.
The cited studies did not find that owning a cat itself raises toxoplasmosis risk. Undercooked meat and contaminated soil were more relevant exposures; pregnancy can make first infection serious.
B
Move “During pregnancy, you do not need to rehome a cat; delegate litter cleaning and prevent infection through food and soil hygiene” to Future Me's calendar
The excuse
The routine already works until the day the source says it may not.
What feels good now
Today I keep a few minutes, a bit of persistence and avoid interrupting my default routine.
What the source says
The source summarizes the return this way: “The cited studies did not find that owning a cat itself raises toxoplasmosis risk. Undercooked meat and contaminated soil were more relevant exposures; pregnancy can make first infection serious.” Evidence grade B. The original states the population, caveats, and sources; this is not a personal forecast.
Use the original facts and limits. For an urgent medical, safety, financial, or legal issue, contact a qualified local professional or service.
THE ENGLISH EDITION
Original recommendation and evidence
17. During pregnancy, you do not need to rehome a cat; delegate litter cleaning and prevent infection through food and soil hygiene
Cost: Delegating litter cleaning costs nothing; disposable gloves are inexpensive if no one else can do it.
In plain terms: The cited studies did not find that owning a cat itself raises toxoplasmosis risk. Undercooked meat and contaminated soil were more relevant exposures; pregnancy can make first infection serious.
Applicability and limits: Follow prenatal-care guidance. The source recommends daily litter changes, handwashing, thoroughly cooked meat, and asking a clinician about testing or individual concerns.
Translation note: This concise English edition was prepared for this site; the full Chinese source and its original evidence remain available below.
Source links
- Centers for Disease Control and Prevention. Toxoplasmosis: Risk Factors. ↗
- Centers for Disease Control and Prevention. Preventing Toxoplasmosis. ↗
- NHS. Toxoplasmosis. ↗
- 中国疾病预防控制中心 (2025). 孕期弓形虫感染，都是「吸猫」惹的祸吗？ ↗
- Cook AJ, Gilbert RE, Buffolano W, et al. (2000). Sources of toxoplasma infection in pregnant women: European multicentre case-control study. BMJ, 321(7254), 142-147. ↗
- Dunn D, Wallon M, Peyron F, Petersen E, Peckham C, Gilbert R (1999). Mother-to-child transmission of toxoplasmosis: risk estimates for clinical counselling. Lancet, 353(9167), 1829-1833. ↗
- Pinned original chapter on GitHub ↗
Read the complete Chinese source and notes
17. 怀孕了不用把猫送走，猫砂换别人每天铲，肉要做熟、碰土戴手套
成本: 不花钱。猫砂交给家里人每天铲。只能自己铲的，买一盒一次性手套。难在吃肉要全熟，半生的牛排、羊肉都不能吃
说人话: 弓形虫是一种寄生虫。怀孕时第一次染上，可能流产，孩子也可能眼睛和脑子受损。家里养猫并不让人更容易染上，猫不用送走。更要防的是吃没熟透的肉、碰土不洗手，猫砂换别人每天铲就行。
收益: 美国疾病控制与预防中心说，怀孕前不久或怀孕时第一次感染弓形虫，会传给胎儿。多数被感染的孩子出生时没有症状，长大后可能失明或智力残疾。少数孩子出生时就有严重的眼睛或脑损伤。英国国家医疗服务体系（NHS）说，孕期感染可能导致流产。法国里昂的弓形虫检测中心统计了 603 名孕期确诊感染的孕妇，多数用了抗寄生虫药。传给胎儿的总比例是 29%（95% CI 25 至 33，可信范围）。孕 13 周感染的约 6% 传给胎儿，孕 36 周感染的约 72%。越早感染，孩子越容易出症状。孕 24 到 30 周感染的，孩子早早出现症状的风险最高，约 10%。欧洲六个城市比较了孕期新感染和没感染的孕妇。家里养猫 OR 1.0（95% CI 0.7 至 1.5），没有差别。自己清猫砂盆 OR 1.3（95% CI 0.8 至 2.1），差别可能只是偶然。吃没熟透的羊肉 OR 3.13（95% CI 1.4 至 7.2），风险约是不吃的 3 倍。碰土 OR 1.81（95% CI 1.2 至 2.7），高约八成。各城市有 30% 到 63% 的感染能算到没熟透或腌制的肉上，6% 到 17% 算到碰土上。美国疾病控制与预防中心给孕妇的做法：能让别人换猫砂就让别人换。没人换就戴一次性手套，换完用肥皂和水洗手。猫砂每天换，因为猫粪里的弓形虫要过 1 到 5 天才会传染人。孕期别新养猫，别收养或摸流浪猫，尤其是小猫。猫关在屋里，只喂猫粮或做熟的食物，不喂生肉。中国疾控中心的科普也说，准爸爸尽量承担清理猫砂盆，孕期做好防护可以把猫留在身边。NHS 写明，摸猫、养猫都不会染上弓形虫
证据等级: B
来源: Centers for Disease Control and Prevention. Toxoplasmosis: Risk Factors. <https://www.cdc.gov/toxoplasmosis/risk-factors/index.html>；Centers for Disease Control and Prevention. Preventing Toxoplasmosis. <https://www.cdc.gov/toxoplasmosis/prevention/index.html>；NHS. Toxoplasmosis. <https://www.nhs.uk/conditions/toxoplasmosis/>；中国疾病预防控制中心 (2025). 孕期弓形虫感染，都是「吸猫」惹的祸吗？ <https://www.chinacdc.cn/jkkp/crb/qtcr/202501/t20250103_303681.html>；Cook AJ, Gilbert RE, Buffolano W, et al. (2000). Sources of toxoplasma infection in pregnant women: European multicentre case-control study. BMJ, 321(7254), 142-147. <https://doi.org/10.1136/bmj.321.7254.142>；Dunn D, Wallon M, Peyron F, Petersen E, Peckham C, Gilbert R (1999). Mother-to-child transmission of toxoplasmosis: risk estimates for clinical counselling. Lancet, 353(9167), 1829-1833. <https://doi.org/10.1016/s0140-6736(98)08220-8>
备注: 猫一般只在第一次感染后的几周里随粪便排出弓形虫。以前感染过的成年猫，再排出的可能更小。猫关在屋里、不吃生肉，被感染的机会也小。家里不养猫也照样会染上，来源是没熟透的肉、没洗净的蔬果、被猫粪污染的土和生水。所以要做的是这几样：肉做到全熟，切过生肉的刀、案板和手要洗；蔬果用流水冲洗；种花、翻土戴手套，事后洗手。NHS 还提醒别吃萨拉米、帕尔马火腿这类生腌肉，别喝没消毒的羊奶。那项欧洲研究没细问生菜和没洗的蔬菜，14% 到 49% 的感染找不到来源。要不要查弓形虫抗体，问产检医生。定 B 是因为猫和肉的风险只有一项研究的数字，而且是事后回忆的。做法来自官方机构，没有研究算过照做能少多少感染。收益定「中」凭判断，理由在核实记录里。好处落在你自己和孩子身上
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