Cryo-EM analysis on the complex between Fab (Fragment, Antigen-Binding) K4-66 and SARS-CoV-2 XBB.1.5 S ectodomain revealed that K4-66 recognizes the same epitope as previously reported IGHV3-53/3 ...

In addition, the variety of molecular types of fragments has increased over time, with Fab the only fragment type first studied in the clinic before 1996. Interestingly, of these Fab candidates ...

"It is twice as powerful as the KAB and FAB-250 previously used to bomb Kharkiv daily," noted Oleksandr Filchakov, head of the regional prosecutor's office. Photo: Judging from the fragments ...

Fragments from the explosion can travel more than 4,000 feet out, the channel suggested. In March, Russia's defense ministry ...