Online research repositories have become key forums for revelation and debate about the pandemic. Built to advance science more nimbly, they have been at the forefront of reporting discoveries about masks, vaccines, new coronavirus variants and more. But the sites lack protections inherent to the traditional — and much slower — world of peer-reviewed scientific journals, where articles are published only after they have been critiqued by other scientists. Research shows papers posted to online sites also can be hijacked to fuel conspiracy theories.
