Researchers demonstrate that the SARS-CoV-2 spike protein is more stable and binds the human ACE2 receptor with much higher affinity than the spike protein of its closest known relative, bat coronavirus RaTG13.
An influenza virus identified in pigs in China has a concerning mix of genes, but experts say there is no way to know if it will evolve to be transmissible between humans.
Preprints from the first round of seroprevalence studies indicate that many more people have been infected with the virus than previously reported. Some of these studies also have serious design flaws.
The small number of genetic differences between the original strain of the novel coronavirus from Wuhan and those currently circulating in the US population indicates that a vaccine may likely offer lasting immunity.
A preprint indicates that coronavirus transmission from surfaces is possible, but does not provide evidence that this has occurred in the COVID-19 pandemic.
Saliva tests screen staff and students at University of Illinois; Study ranks species most susceptible to SARS-CoV-2 infection; COVID-19 clinical trials test drugs that inhibit kinin system