VIRAL PROTEIN/IMMUNE SYSTEM SARS-COV-2 SPIKE IN COMPLEX WITH THE S2A4 NEUTRALIZING ANTIBODY FAB FRAGMENT: 0 - B THR 376 N VS D SER 31 O Distance: 4.615393 - Hydrogen Bonds, 1 - B PHE 377 N VS D SER 31 O Distance: 3.057294 - Hydrogen Bonds, 2 - B PHE 377 O VS D TYR 33 N Distance: 4.613883 - Hydrogen Bonds, 3 - B LYS 378 N VS D SER 31 O Distance: 4.269953 - Hydrogen Bonds, 4 - B TYR 380 OH VS D ALA 30 O Distance: 4.680744 - Hydrogen Bonds,