Researchers from Boston Children’s Hospital and Harvard Medical School reported the discovery and preclinical evaluation of SP1-77, a novel humanized monoclonal IgG-κ antibody targeting the receptor-binding-domain (RBD) of spike (S) glycoprotein of all SARS-CoV-2 variants.

A new vaccine that uses the native-like HIV-1 envelope (Env) trimer CH505 and a Toll-like receptor (TLR) 7/8 agonist adjuvant, successfully evaluated in macaques, generated potent polyclonal neutralizing antibodies (nAbs) and a high protection against the infection of the homologous simian-human immunodeficiency virus (SHIV).