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NY Times: High-Dose Coronavirus Infections Should Worry Us More - As with any other poison, viruses are usually more dangerous in larger amounts. By Joshua D. Rabinowitz and Caroline R. Bartman

From a policy perspective, we need to consider that not all exposures to the coronavirus may be the same. Stepping into an office building that once had someone with the coronavirus in it is not as dangerous as sitting next to that infected person for an hourlong train commute.