Abstract: The present invention relates to methods of determining anti-infectious agent IgG avidity, for example, human anti-cytomegalovirus and human anti-toxoplasma IgG avidity, using a competitive assay format.

Abstract: The present invention relates to a genetically engineered P30 antigen and a combination or mixture of antigens (e.g., the genetically engineered P30 antigen and P35) that may be used in the detection of IgM and/or IgG antibodies to Toxoplasma gondii. Furthermore, the present invention also relates to methods of using this genetically engineered P30 antigen and combination of antigens, antibodies raised against this genetically engineered P30 antigen and combination of antigens, as well as kits and vaccines containing the genetically engineered P30 antigen and antigens present in the combination.

Abstract: The invention provides a gas recuperative flameless thermal oxidizer. The oxidizer includes a matrix bed and at least one feed passage extending at least partially within the matrix bed. The feed passage has an inlet configured to receive combustible vapor or an air-combustible vapor mixture and an outlet configured to deliver the combustible vapor or the air-combustible vapor mixture into the matrix bed. The feed passage has a cross-sectional area and a length within the matrix bed, wherein a ratio of the length (ft) to the cross-sectional area (in2) is at least about 0.5:1.