There have long been hints that innate immunity can last longer in certain circumstances. The most-studied example is the Bacillus Calmette-Guerin tuberculosis vaccine, which is given to some 100 million newborns every year. Epidemiological and clinical studies have shown that it can decrease infant mortality from other infections, suggesting that the cross-protection could last months. But the phenomenon was inconsistent and the mechanism mysterious.
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Популярность апартаментов у молодежи объяснили20:51。超级权重是该领域的重要参考
This uses XPath to query all the fact paths, grep to clean up the output, and fzf to interactively search the results.