Their greater vulnerability is probably because construction work continued throughout the pandemic, even during stay-at-home orders and other community-wide public health measures, the study authors suggested.
Some patients in the study saw symptoms ease within 15 days. But for others, problems lingered for up to four months.
The flu vaccine also appears to significantly reduce a COVID-19 patient's risk for ending up in an intensive care unit (ICU), researchers say.
The boy already has lost some of what he's learned in his short time on Earth, and every day he loses a little more.
