The most common health problem was infections of all kinds.

最普遍的健康问题是各种感染。

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The study authors speculate that secondhand smoke may affect the immune system, making infants, toddlers and young children more susceptible to infections of all kinds.

研究报告的作者认为二手烟可能影响免疫系统。这使得出生不久的婴儿、刚学会走路的婴儿及低龄儿童更容易受各类传染病的影响。

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Sure you need to wash your hands and cough into your sleeve, but what are some ways to shore up immunity during this time when infections of all kinds seem to rear their ugly head?

当然，你仍然需要洗手，仍然应该在咳嗽时用你的袖子遮一下。 可是除了这些，在这个各种传染病都蠢蠢欲动的季节，我们应该做些什么来给我们的免疫力“提神”呢？

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"In the past, doctors used to try all kinds of strange things to try to treat lung infections, " said Dr. Jennifer Quint, a respiratory expert at London's School of Hygiene and Tropical Medicine.

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