Table 5. Stability of IgM and IgG3 antibodies at 42 °C.

Time [days]	O10 (IgM)		Q6 (IgM)		M18 (IgG3)
	duplicates		duplicates		duplicates
	I	II	I	II	I	II
0	16a,b	32	32	32	32	32
1	16	16	16	16	32	32
2	16	8	4	8	32	32
3	8	8	—	2	32	32
4	8	8	—	2	32	32
5	8	8	—	2	32	32
6	4	8	—	—	16	32
7	2	4	—	—	16	16

^aAgglutination-inducing titres of the antibodies after indicated time of heating.

^bRepresentative results of three independent experiments performed in duplicates are shown.