【英语时差8,16】婴儿不能饮用蜂蜜

When it comes to raising babies, few things are cut and dried. Should babies sleep on their backs, or on their stomachs? Is this diaper dirty or clean? One thing, however, is clear: never allow a baby to eat honey. Why? Because for babies less than a year old it may contain poison in the form of botulism-causing bacteria.

Botulism results from a protein called botulin, produced by a particular strain of bacteria. Once inside the body it blocks the nerve cells that cause muscles to contract, resulting in paralysis¹. At worst, botulin can cause total paralysis leading to death.

Since botulism bacteria cannot survive in oxygen, they form spores² that lie dormant³ until they're in an oxygen-free environment. For example, the oxygen-free insides of canned goods are prime breeding grounds for botulism. Unless such cans are heated properly to destroy the spores, they will awaken⁴ and contaminate the food inside. That's why many cases of botulism occur after the victim has eaten canned food.

Honey normally doesn't come in cans, so what does this have to do with babies? When bees collect nectar from flowers, they incidentally pick up botulism spores that get mixed into their honey. Since adults and babies more than a year old have fully⁵ developed immune systems and intestinal⁶ bacteria that destroy the spores, eating honey is no problem. Lacking these safeguards, a baby that eats honey provides a perfect environment for the spores to activate⁷ and unleash⁸ their toxin⁹. So keep your baby away from honey. Chances are she's already sweet enough just as she is.  

1 paralysis   

n.麻痹(症)；瘫痪(症)

参考例句：

• The paralysis affects his right leg and he can only walk with difficulty.他右腿瘫痪步履维艰。
• The paralysis affects his right leg and he can only walk with difficulty.他右腿瘫痪步履维艰。

2 spores   

n.（细菌、苔藓、蕨类植物）孢子( spore的名词复数 )v.（细菌、苔藓、蕨类植物）孢子( spore的第三人称单数 )

参考例句：

• Ferns, mosses and fungi spread by means of spores. 蕨类植物、苔藓和真菌通过孢子传播蔓生。
• Spores form a lipid membrane during the process of reproducing. 孢于在生殖过程中形成类脂膜。 来自英汉非文学 - 生命科学 - 预防生物武器

3 dormant   

adj.暂停活动的；休眠的；潜伏的

参考例句：

• Many animals are in a dormant state during winter.在冬天许多动物都处于睡眠状态。
• This dormant volcano suddenly fired up.这座休眠火山突然爆发了。

4 awaken   

vi.醒，觉醒；vt.唤醒，使觉醒，唤起，激起

参考例句：

• Old people awaken early in the morning.老年人早晨醒得早。
• Please awaken me at six.请于六点叫醒我。

5 fully   

adv.完全地，全部地，彻底地；充分地

参考例句：

• The doctor asked me to breathe in,then to breathe out fully.医生让我先吸气，然后全部呼出。
• They soon became fully integrated into the local community.他们很快就完全融入了当地人的圈子。

6 intestinal   

adj.肠的；肠壁；肠道细菌

参考例句：

• A few other conditions are in high intestinal obstruction. 其它少数情况是高位肠梗阻。 来自辞典例句
• This complication has occasionally occurred following the use of intestinal antiseptics. 这种并发症偶而发生在使用肠道抗菌剂上。 来自辞典例句

7 activate   

vt.使活动起来，使开始起作用

参考例句：

• We must activate the youth to study.我们要激励青年去学习。
• These push buttons can activate the elevator.这些按钮能启动电梯。

8 unleash   

vt.发泄，发出；解带子放开

参考例句：

• They hope to create allies to unleash against diseases,pests,and invasive species.他们希望创造出一些新群体来对付疾病、害虫和一些有侵害性的物种。
• Changing water levels now at times unleash a miasma of disease from exposed sewage.如今，大坝不时地改变水位，从暴露的污水释放出了疾病瘴气。

9 toxin   

n.毒素，毒质

参考例句：

• Experts have linked this condition to a build-up of toxins in the body.专家已把这一病症与体内毒素的积累联系起来。
• Tests showed increased levels of toxin in shellfish.检验表明水生有壳动物的毒素水平提高了。