Lots of interesting maps. Especially see the Johns Hopkins website (black and red map above).
CIDRAP is important in general, and they were one of the first English-language groups monitoring this outbreak.
But many of Duke's links require Duke log in, even though most of these resources are free now. Search on product name, or ask me for help accessing (wiswellj@appstate.edu).
See Duke's search strategies.
Try out this temporary PubMed interface that focuses on Covid-19. These are all peer-reviewed, I think, so it's missing the pre-print literature. See Dimensions and Semantic Scholar links below.
A free resource of over 128,000 scholarly articles (5/22/2020), including over 29,000 with full text, about COVID-19 and the coronavirus family of viruses for use by the global research community. Machine readable. This includes a lot of preprints, not yet peer-reviewed.
Note -- These are not the best links for full text access to content other than for coronavirus Covid-19.
Translational resources; Point of care resources
This "translational" website looks useful (by Indiana U./Purdue/Notre Dame):