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: 4.616102 - Hydrogen Bonds, 1 - B PHE 377 N VS D SER 31 O Distance: 3.058170 - Hydrogen Bonds, 2 - B PHE 377 O VS D TYR 33 N Distance: 4.613557 - Hydrogen Bonds, 3 - B LYS 378 N VS D SER 31 O Distance: 4.269644 - Hydrogen Bonds, 4 - B TYR 380 OH VS D ALA 30 O Distance: 4.680843 - Hydrogen Bonds,