The Food and Drug Administration is advising all US blood banks to start screening for the Zika virus.

食品和药物监督局(FDA)建议美国所有血库检测寨卡病毒。

OK, now we know the work that needs to get done so we can start screening candidates in instead of screening them out.

好，现在我们知道了需要做的工作，我们就可以开始把候选人筛进来，而不是筛出去。

If you have a family history of colorectal cancer or polyps, or inflammatory bowel disease, ask your doctor if you should start screening before age 50.

如果你有结肠直肠癌或息肉、或者炎症性肠病家族史，去咨询你的医师，看是否应该在50岁以前做筛查。