Circulating SARS-CoV-2 variants B.1.1.7, 501Y.V2, and P.1 have gained ability to utilize rat and mouse Ace2 and altered in vitro sensitivity to neutralizing antibodies and ACE2-Ig

Here, we first investigated cross-species receptor usage of multiple SARS-CoV-2 variants that emerged during the pandemic.  More...

SARS-CoV-2 reinfection by the new Variant of Concern (VOC) P.1 in Amazonas, Brazil

“In this study, we report the first documented case of reinfection with the newly emerging P.1 lineage in a 29-years-old individual from Amazonas, a Brazilian state that was severely hit by COVID-19 at the first epidemic wave between March and July, and is currently facing a spiraling surge of deaths since November 2020.  More...