疫苗接种时间表与活疫苗规则

🧠 为什么重要

常规时间表简化如下：hepatitis B在出生时、1 to 2个月和6 to 18个月时接种；在2、4和6个月时接种DTaP、IPV、Hib、pneumococcal conjugate和rotavirus（rotavirus为口服疫苗，不得在约15周后开始，也不得在8个月后接种）；在12 to 15个月时接种MMR、VARICELLA、hepatitis A以及Hib和pneumococcal的加强剂；在4 to 6岁时接种DTaP、IPV、MMR和varicella；在11 to 12岁时接种Tdap、HPV（如果在15岁前开始则为两剂）和meningococcal，并在16岁时接种meningococcal加强剂。从6个月起每年接种流感疫苗。在2025和2026年，联邦官员更改了其中几项（hepatitis B出生剂量、rotavirus、hepatitis A、influenza、meningococcal和HPV的剂量）；一家联邦法院在2026年三月暂停了这些更改，政府提出上诉，因此请查看当前CDC时间表和AAP指南。活疫苗（MMR、varicella、rotavirus、鼻内流感疫苗）在妊娠期和严重免疫抑制时禁用；接种MMR或varicella后4周内应避免怀孕。伴有或不伴有低热的轻微疾病不是推迟接种的理由；中度或重度急性疾病才是。既往对某种疫苗或其成分出现过敏性反应是真正的禁忌证。鸡蛋过敏不再是流感疫苗接种的禁忌证。预期会出现轻微的局部酸痛和低热；如出现高热、惊厥或过敏性反应，应报告。

The routine schedule, simplified: HEPATITIS B at birth, 1 to 2 months and 6 to 18 months; at 2, 4 and 6 months DTaP, IPV, Hib, pneumococcal conjugate and rotavirus (rotavirus is oral and must not be started after about 15 weeks or given after 8 months); at 12 to 15 months MMR, VARICELLA, hepatitis A and boosters of Hib and pneumococcal; at 4 to 6 years DTaP, IPV, MMR and varicella; at 11 to 12 years Tdap, HPV (two doses if started before age 15) and meningococcal, with a meningococcal booster at 16. Annual influenza vaccine from 6 months. In 2025 and 2026 federal officials changed several of these (the hepatitis B birth dose, rotavirus, hepatitis A, influenza, meningococcal and HPV doses); a federal court paused those changes in March 2026 and the government appealed, so check the current CDC schedule and AAP guidance. LIVE vaccines (MMR, varicella, rotavirus, the intranasal flu vaccine) are contraindicated in pregnancy and in severe immunosuppression; avoid pregnancy for 4 weeks after MMR or varicella. A mild illness with or without low-grade fever is NOT a reason to delay; a moderate or severe acute illness is. A previous anaphylactic reaction to a vaccine or its component is a true contraindication. Egg allergy no longer contraindicates influenza vaccination. Expect mild local soreness and low-grade fever; report high fever, seizures or anaphylaxis.

🏥 真实场景

🤧 这名流鼻涕的13个月大孩子按计划接种了MMR和varicella，因为轻微的上呼吸道感染不是禁忌证。她的姨妈怀孕10周且从未得过水痘，要到分娩后才接种varicella疫苗。同一个家庭，同一周，相反的答案，两者都正确。

🤧 The 13-month-old with the runny nose gets her MMR and varicella on schedule, because a mild upper respiratory infection is not a contraindication. Her aunt, who is 10 weeks pregnant and has never had chickenpox, does not get the varicella vaccine until after delivery. Same family, same week, opposite answers, both correct.

📌 要点总结

• 活疫苗：MMR、varicella、rotavirus、鼻内流感疫苗：不用于妊娠期或严重免疫抑制Live vaccines: MMR, varicella, rotavirus, nasal flu: not in pregnancy or severe immunosuppression
• 轻微疾病不是推迟的理由；中度或重度疾病才是Mild illness is not a reason to delay; moderate or severe illness is
• Rotavirus为口服疫苗，年龄窗口严格；HPV在11 to 12岁时常规接种，但最早可在9岁开始Rotavirus is oral with a strict age window; HPV is routine at 11 to 12 but may start as early as age 9

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