「它已經無處不在」：美國如何錯失了遏制新冠病毒的良機？
Peterarthur
the flu study could not be repurposed because it did not have explicit permission from research subjects; the labs were also not certified for clinical work. While acknowledging the ethical questions, Dr. Chu and others argued there should be more flexibility in an emergency during which so many lives could be lost.