Babies are beautiful. I always want to smile at them in the street, perhaps because they are a rarer and more precious sight in this ageing country or because they remind me of my grandchildren. There are about 3.5 million children aged four and under, while dogs on the streets are a more plentiful 13.5 million. Is the dog boom compensating for fewer children? As time goes by, there are going to be ever more grandparents and ever fewer children to beam at foolishly.
Early-life exposure to allergens triggers a distinct local mode of dendritic cell activation in neonatal skin without requiring migration to lymph nodes, which shapes responses to allergens in later life.
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Фото: Алексей Даничев / РИА Новости，详情可参考夫子