Latex-protein complexes from an acute phase recombinant antigen of Toxoplasma gondii for the diagnosis of recently acquired toxoplasmosis

- The synthesis/characterization of polystyrene and carboxylated latexes is described.
- The acute phase recombinant-antigen P35 (P35Ag) of Toxoplasma gondii was produced.
- Physical adsorption and chemical coupling of P35Ag onto latex particles were studied.
- Antigenicity of P35Ag coupled onto the particles surface was evaluated.
- Acute sera were differentiated from negative and chronic sera.