“Viruses don’t respect borders,” said Dr. Wafaa El-Sadr, professor of epidemiology and medicine at Columbia Mailman School of Public Health and lead of the New York City Pandemic Response Institute.
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“Viruses don’t respect borders,” said Dr. Wafaa El-Sadr, professor of epidemiology and medicine at Columbia Mailman School of Public Health and lead of the New York City Pandemic Response Institute.
