TABLE 1.

Identification of bacteria and bacterial products in the joint by different methods^a

Bacterium	Presence in joint of bacterial products
	Antigens	DNA	RNA	Culture
C. trachomatis	+	+	+	±
Y. enterocolitica	+	+	NDb	−
Y. pseudotuberculosis	+	−	+	−
S. flexneri and S. sonnei	+	+	ND	−

^aData are from reference 175.

^bND, not done.