A couple wearing masks as a precaution against swine flu walks past closed stores in Mexico City, Monday, May 4, 2009. Mexican officials lowered their flu alert level in the capital on Monday, and plan to allow cafes, museums and libraries to reopen this week, while world health officials weighed raising their pandemic alert to the highest level. (AP Photo/Gregory Bull)
Read the article: Mexico says swine flu ebbing, so it lowers Mexico City alert level
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