Product description

O antisera are polyclonal antibodies from rabbits. 

In order to minimize cross-reaction problems, the majority of SSI Diagnostica Group E. coli O antisera are supplied as monospecific antisera, i.e. free of known O cross-reactions.  

SSI Diagnostica offers O pool antisera and single O antisera supplied as ready-to-use antisera.  

In addition, high‑titer single O antisera (if the titer allows) are supplied in 1 mL bottles for a 1:4 dilution by the customer.

How to use 

O antisera are used for agglutination of boiled cultures in microtitre plates or Widal tubes. Equal quantities of antiserum and culture are mixed, and the result is read after overnight incubation at 52 °C. 

Product range

O pool antisera for complete O-typing | O single antisera, standard titer | O single antisera, high titer

SSI Diagnostica Group offers antisera for identification of all O antigens. As well as single antisera, SSI Diagnostica

Group also offers a pool system: Pool AA-XX. 

Pool system AA-XX for full serotyping is constituted so that cross-reacting serotypes are found in the same pool. This minimises the probability of a positive result in two pools. 

O pool antisera for complete O-typing 

Article number	Product	Reacts with antigen	No. of tests	Packing
79983	O pool AA	O1,O2,O50,O53,O74,O107,O117,O175,O187	35	3 mL vial
79986	O pool BB	O3,O14,O21,O22,O23,O38,O76,O83,O158	35	3 mL vial
79987	O pool CC	O4,O12,O16,O18ab,O18ac,O19,O25,O68,O102,O123	35	3 mL vial
80006	O pool DD	O5,O7,O65,O70,O71,O116,O138,O141	35	3 mL vial
80007	O pool EE	O6,O8,O9,O20,O57,O60,O93,O101,O188	35	3 mL vial
80008	O pool FF	O10,O11,O41,O100,O110,O148,O154,O159,O168,O179	35	3 mL vial
80009	O pool GG	O49,O51,O52,O58,O61,O160,O176,O178	35	3 mL vial
80010	O pool HH	O13,O17,O44,O62,O66,O73,O77,O106	35	3 mL vial
80011	O pool II	O15,O36,O40,O45,O54,O75,O177	35	3 mL vial
80012	O pool JJ	O30,O69,O149,O150,O151,O173,O174	35	3 mL vial
80013	O pool KK	O24,O27,O29,O35,O56,O81,O169,O186	35	3 mL vial
80014	O pool LL	O26,O55,O103,O127,O128abc,O145,O157	35	3 mL vial
80015	O pool MM	O28ab,O28ac,O42,O112ab,O112ac,O124,O136,O144	35	3 mL vial
80016	O pool NN	O32,O33,O146,O161,O162,O163,O166,O185	35	3 mL vial
80017	O pool OO	O34,O46,O85,O130,O134,O140,O167,O171	35	3 mL vial
80020	O pool PP	O37,O39,O48,O59,O88,O91,O155,O165,O184	35	3 mL vial
80021	O pool QQ	O43,O63,O64,O78,O89,O92,O129	35	3 mL vial
80022	O pool RR	O79,O80,O90,O95,O133,O135,O142,O153,O156	35	3 mL vial
80023	O pool SS	O82,O87,O96,O105,O120,O137,O170,O183	35	3 mL vial
80024	O pool TT	O84,O118,O121,O126,O143,O164,O172	35	3 mL vial
80025	O pool UU	O86,O111,O114,O119,O125abc	35	3 mL vial
80026	O pool WW	O97,O98,O99,O104,O132,O139,O147	35	3 mL vial
80915	O pool XX	O108,O109,O113,O115,O131,O152,O180,O181,O182	35	3 mL vial

O single antisera, standard titer

Article number	Product	Incl. in pool	No. of tests	Packing
84997	O1	AA	12	1 mL vial
84998	O2	AA	12	1 mL vial
84999	O3	BB	12	1 mL vial
85000	O4	CC	12	1 mL vial
85001	O5	DD	12	1 mL vial
85002	O6	EE	12	1 mL vial
85003	O7	DD	12	1 mL vial
45747	O8	EE	35	3 mL vial
45748	O9	EE	35	3 mL vial
85006	O10	FF	12	1 mL vial
85007	O11	FF	12	1 mL vial
85008	O12	CC	12	1 mL vial
85009	O13	HH	12	1 mL vial
85010	O14	BB	12	1 mL vial
85011	O15	II	12	1 mL vial
85012	O16	CC	12	1 mL vial
85013	O17	HH	12	1 mL vial
85014	O18ab	CC	12	1 mL vial
85015	O18ac	CC	12	1 mL vial
85016	O19	CC	12	1 mL vial
85017	O20	EE	12	1 mL vial
85018	O21	BB	12	1 mL vial
85019	O22	BB	12	1 mL vial
85020	O23	BB	12	1 mL vial
85021	O24	KK	12	1 mL vial
85022	O25	CC	12	1 mL vial
45766	O26	LL	35	3 mL vial
85024	O27	KK	12	1 mL vial
85025	O28ab	MM	12	1 mL vial
85026	O28ac	MM	12	1 mL vial
85027	O29	KK	12	1 mL vial
85028	O30	JJ	12	1 mL vial
85029	O32	NN	12	1 mL vial
85030	O33	NN	12	1 mL vial
85031	O34	OO	12	1 mL vial
85032	O35	KK	12	1 mL vial
85033	O36	II	12	1 mL vial
85034	O37	PP	12	1 mL vial
85035	O38	BB	12	1 mL vial
85036	O39	PP	12	1 mL vial
85037	O40	II	12	1 mL vial
85038	O41	FF	12	1 mL vial
85039	O42	MM	12	1 mL vial
85040	O43	QQ	12	1 mL vial
85041	O44	HH	12	1 mL vial
45785	O45	II	35	3 mL vial
85043	O46	OO	12	1 mL vial
85044	O48	PP	12	1 mL vial
85045	O49	GG	12	1 mL vial
85046	O50	AA	12	1 mL vial
85047	O51	GG	12	1 mL vial
85048	O52	GG	12	1 mL vial
85049	O53	AA	12	1 mL vial
85050	O54	II	12	1 mL vial
85051	O55	LL	12	1 mL vial
85052	O56	KK	12	1 mL vial
85053	O57	EE	12	1 mL vial
85054	O58	GG	12	1 mL vial
85055	O59	PP	12	1 mL vial
85056	O60	EE	12	1 mL vial
85057	O61	GG	12	1 mL vial
85058	O62	HH	12	1 mL vial
85059	O63	QQ	12	1 mL vial
85060	O64	QQ	12	1 mL vial
85061	O65	DD	12	1 mL vial
85062	O66	HH	12	1 mL vial
85063	O68	CC	12	1 mL vial
85064	O69	JJ	12	1 mL vial
85065	O70	DD	12	1 mL vial
85066	O71	DD	12	1 mL vial
85067	O73	HH	12	1 mL vial
85068	O74	AA	12	1 mL vial
85069	O75	II	12	1 mL vial
85070	O76	BB	12	1 mL vial
85071	O77	HH	12	1 mL vial
85072	O78	QQ	12	1 mL vial
85073	O79	RR	12	1 mL vial
85074	O80	RR	12	1 mL vial
85075	O81	KK	12	1 mL vial
85076	O82	SS	12	1 mL vial
85077	O83	BB	12	1 mL vial
85078	O84	TT	12	1 mL vial
85079	O85	OO	12	1 mL vial
85080	O86	UU	12	1 mL vial
85082	O87	SS	12	1 mL vial
45825	O88	PP	35	3 mL vial
85084	O89	QQ	12	1 mL vial
85085	O90	RR	12	1 mL vial
85086	O91	PP	12	1 mL vial
85087	O92	QQ	12	1 mL vial
85088	O93	EE	12	1 mL vial
85089	O95	RR	12	1 mL vial
85090	O96	SS	12	1 mL vial
85091	O97	WW	12	1 mL vial
85092	O98	WW	12	1 mL vial
85093	O99	WW	12	1 mL vial
85094	O100	FF	12	1 mL vial
85095	O101	EE	12	1 mL vial
85096	O102	CC	12	1 mL vial
45839	O103	LL	35	3 mL vial
45840	O104	WW	35	3 mL vial
85100	O105	SS	12	1 mL vial
85102	O106	HH	12	1 mL vial
85103	O107	AA	12	1 mL vial
85104	O108	XX	12	1 mL vial
85105	O109	XX	12	1 mL vial
85106	O110	FF	12	1 mL vial
45847	O111	UU	35	3 mL vial
85108	O112ab	MM	12	1 mL vial
85109	O112ac	MM	12	1 mL vial
85110	O113	XX	12	1 mL vial
85111	O114	UU	12	1 mL vial
85112	O115	XX	12	1 mL vial
85113	O116	DD	12	1 mL vial
85114	O117	AA	12	1 mL vial
85115	O118	TT	12	1 mL vial
85116	O119	UU	12	1 mL vial
85117	O120	SS	12	1 mL vial
45858	O121	TT	35	3 mL vial
85119	O123	CC	12	1 mL vial
85120	O124	MM	12	1 mL vial
85121	O125abc	UU	12	1 mL vial
85122	O126	TT	12	1 mL vial
85123	O127	LL	12	1 mL vial
85124	O128abc	LL	12	1 mL vial
85125	O129	QQ	12	1 mL vial
85126	O130	OO	12	1 mL vial
85127	O131	XX	12	1 mL vial
85128	O132	WW	12	1 mL vial
85129	O133	RR	12	1 mL vial
85130	O134	OO	12	1 mL vial
85131	O135	RR	12	1 mL vial
85132	O136	MM	12	1 mL vial
85133	O137	SS	12	1 mL vial
85134	O138	DD	12	1 mL vial
45878	O139	WW	35	3 mL vial
85136	O140	OO	12	1 mL vial
45880	O141abc	DD	35	3 mL vial
85138	O142	RR	12	1 mL vial
85139	O143	TT	12	1 mL vial
85140	O144	MM	12	1 mL vial
45884	O145	LL	35	3 mL vial
85142	O146	NN	12	1 mL vial
85143	O147	WW	12	1 mL vial
85144	O148	FF	12	1 mL vial
45888	O149	JJ	35	3 mL vial
85146	O150	JJ	12	1 mL vial
85147	O151	JJ	12	1 mL vial
85148	O152	XX	12	1 mL vial
85149	O153	RR	12	1 mL vial
85150	O154	FF	12	1 mL vial
85151	O155	PP	12	1 mL vial
85152	O156	RR	12	1 mL vial
45896	O157	LL	35	3 mL vial
85154	O158	BB	12	1 mL vial
85155	O159	FF	12	1 mL vial
85156	O160	GG	12	1 mL vial
85157	O161	NN	12	1 mL vial
85158	O162	NN	12	1 mL vial
85159	O163	NN	12	1 mL vial
85160	O164	TT	12	1 mL vial
85161	O165	PP	12	1 mL vial
85162	O166	NN	12	1 mL vial
85163	O167	OO	12	1 mL vial
85164	O168	FF	12	1 mL vial
85165	O169	KK	12	1 mL vial
85166	O170	SS	12	1 mL vial
85167	O171	OO	12	1 mL vial
85168	O172	TT	12	1 mL vial
85169	O173	JJ	12	1 mL vial
85170	O174	JJ	35	1 mL vial
85171	O175	AA	12	1 mL vial
85172	O176	GG	12	1 mL vial
85173	O177	II	12	1 mL vial
85174	O178	GG	12	1 mL vial
85175	O179	FF	12	1 mL vial
85176	O180	XX	12	1 mL vial
85177	O181	XX	12	1 mL vial
85178	O182	XX	12	1 mL vial
85179	O183	SS	12	1 mL vial
85180	O184	PP	12	1 mL vial
85181	O185	NN	12	1 mL vial
85182	O186	KK	12	1 mL vial
84996	O187	AA	12	1 mL vial
96274	O188	EE	12	1 mL vial

O single antisera, high titer

The high titer antisera listed in the table below are available off-the-shelf. The other antisera available with standard titer can be produced as high titer on request. Please reach out for further information.

Article number	Product	Incl. in pool	No. of tests	Packing
81356	E. coli O1 serum high titer	AA	40	1 mL vial
81359	E. coli O2 serum high titer	AA	40	1 mL vial
81362	E. coli O4 serum high titer	CC	40	1 mL vial
81357	E. coli O6 serum high titer	EE	40	1 mL vial
81361	E. coli O15 serum high titer	II	40	1 mL vial
81379	E. coli O16 serum high titer	CC	40	1 mL vial
81365	E. coli O18ac serum high titer	CC	40	1 mL vial
81369	E. coli O25 serum high titer	CC	40	1 mL vial
81478	E. coli O75 serum high titer	KK	40	1 mL vial