Links to curated collections from various publishers and organizations:
LitCovid: Curated Literature Hub from NCBI: PubMed references about COVID-19.
COVID-19 Open Research Dataset (CORD-19): Over 130,000 scholarly articles (many with full text) about COVID-19 & the coronavirus family.
COVID-19 Vaccine Tracker (New York Times): Information on vaccines development.
National Academies of Sciences, Engineering, and Medicine: Coronavirus Resources: topics relating to COVID-19 and SARS-CoV-2.
PubMed Central Coronavirus & COVID-19 Collections: Collection of coronavirus-related publications and associated data deposited by over 50 publishers.
https://www.semanticscholar.org/cord19: The Semantic Scholar team at the Allen Institute for AI has partnered with leading research groups to provide CORD-19, a free resource of more than 130,000 scholarly articles about the novel coronavirus for use by the global research community.