Wafaa El-Sadr, MD, MPH, MPA comments on challenges in supply chains and availability of COVID-19 testing as attention turns towards vaccinations.

“The same people who are doing the testing are often the same ones doing the vaccinations,” said Dr. Wafaa El-Sadr, professor of epidemiology and medicine at Columbia University Mailman School of Public Health. “And the attention to some of the issues around supply may affect the focus turning to vaccines rather than tests.”

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