Talk:Treponema pallidum particle agglutination assay

This indicates direct Hemagglutination not indirect.

The title of the article seems wrong. Treponema pallidum particle agglutination assay (currently used test) is DEFINITELY not TPHA (a test that is interesting historically but not commonly used right now). Sources are sparse, but I remember a FDA manual floating around somewhere. Jimhsu77479 (talk) 23:06, 11 March 2012 (UTC)