allowing at least one of {TAIL ~ the first and second antibodies} to bind with {HEAD ~ the skin pathogen} to form at least one an antibody/antigen complex 
allowing at least one of { TAIL ~ the first and second antibodies } to bind with { HEAD ~ the skin pathogen } to form at least one an antibody / antigen complex
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH