Open access publishing on US PubMed Central
27 March 2020. Related: COVID-19: research studies, COVID-19: on the web, COVID-19.
Simon Collins, HIV i-Base
On 25 March 2020, the US National Library of Medicine (NLM) announced it would be rapidly including research relating to COVID-19 and called for open access to important papers as part of the emergency response to the pandemic.
PMC currently provides access to nearly 6 million full-text journal articles and a search for COVID-19 produces more than 1800 results. 
- NLM. The National Library of Medicine expands access to coronavirus literature through PubMed Central. (25 March 2020).
- Search for COVID-19.