The invention provides {TAIL ~ fluorophore conjugated antigens} comprising oligosaccharides derived from the lipopolysaccharide fraction of {HEAD ~ a bacterial cell wall} 
The invention provides { TAIL ~ fluorophore conjugated antigens } comprising oligosaccharides derived from the lipopolysaccharide fraction of { HEAD ~ a bacterial cell wall }
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD