Summer Travel and the Zika Virus - The New York Times
Catherine Saint Louis
If he did not experience symptoms, he should use condoms for at least eight weeks.
['If', 'he', 'did', 'not', 'experience', 'symptoms,', 'he', 'should', 'use', 'condoms', 'for', 'at', 'least', 'eight', 'weeks.']