VIRAL PROTEIN/IMMUNE SYSTEM SARS-COV-2 SPIKE IN COMPLEX WITH THE S2A4 NEUTRALIZING ANTIBODY FAB FRAGMENT: 0 - A THR 376 N VS L SER 31 O Distance: 4.614979 - Hydrogen Bonds, 1 - A PHE 377 N VS L SER 31 O Distance: 3.057827 - Hydrogen Bonds, 2 - A PHE 377 O VS L TYR 33 N Distance: 4.613296 - Hydrogen Bonds, 3 - A LYS 378 N VS L SER 31 O Distance: 4.269184 - Hydrogen Bonds, 4 - A TYR 380 OH VS L ALA 30 O Distance: 4.680205 - Hydrogen Bonds,