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There are quite a number of asymptomatically infected in the population, and they may discharge hepatitis A virus at certain times and under certain conditions.

无症状感染者在人群中为数不少,在一定时期和条件下病毒,但此时带毒者常活动自如,不易管理,因而作为传染源有重要意义。

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科普小

Rabies, tetanus, hepatitis A, influenza, and lots of other vaccines have all been made using completely inactivated viruses.

犬病、破伤风、甲型流感等许多种疫苗都是使用完全灭活病毒生产的。

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世界节假日

Previous campaigns have included " Get vaccinated! Prevent hepatitis A and B" and treating people with all bleeding disorders.

去年的活动包括“注射疫苗,远离A, B型”,为所有出血性疾病患者进行治疗。

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国家地理选编

Handwashing with soap is a first defense against both diseases, as it is against cholera, dysentery, hepatitis A, and typhoid.

用肥皂洗手是抵御这两种疾病的主要法,同时也能抵抗霍乱、痢疾、A型以及伤寒。

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Life Noggin

Dirty water can lead to hepatitis A, cholera and typhoid fever.

脏水会导致甲型霍乱和伤寒。

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VOA Special 2022年6月合集

The usual causes of liver inflammation in otherwise healthy children come from viruses known as hepatitis A, B, C, D and E.

其他健康儿童脏发的常见原因是甲型、乙型、丙型、丁型和戊型病毒。

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huahui week5

Vaccines for adults can also prevent tetanus, pertussis, hepatitis A and B, shingles, and HPV.

成人疫苗还可以预防破伤风、百日咳、甲型乙型状疱疹和 HPV。

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穿越星际秘境

This means human life will inevitably be affected by these  floods, impacting shelter, clean water supplies, electricity, as well as the increased risk of  waterborne disease outbreaks, like hepatitis A and cholera.

这意味着人类生活将不可避免地受到这些洪水的影响,影响住所、清洁水供应、电力,并增加甲型和霍乱等水传播疾病爆发的风险。

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科学60秒-科学美国人 2021年10月合集

He also pointed out other vaccines, such as the common polio vaccine used now, and the hepatitis A vaccine, show that a booster four to six months after the original shot provides a powerful and long-lasting increase in immunity.

他还指出,其他疫苗,如现在使用的普通脊髓灰质​​疫苗和甲型疫苗,表明在最初注射后四到六个月进行加强免疫可提供强大而持久的免疫力增强。

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