Dr. William Henrich, president, UT Health San Antonio, offers readers of the Laredo Morning Times his warning that traveling (in planes, buses, trains) when in a closed setting, where breathing is re-circulated, is risky.
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Dr. William Henrich, president, UT Health San Antonio, offers readers of the Laredo Morning Times his warning that traveling (in planes, buses, trains) when in a closed setting, where breathing is re-circulated, is risky.