Table 3. Serotypes and information of the Listeria monocytogenes isolates from smoked ducks

Strains	Agglutination assay	Multiplex PCR	Final serotype
SMFM2018 SD 1-1	1/2a	1/2a, 3a	1/2a
SMFM2018 SD 4-1	1/2a	1/2a, 3a	1/2a
SMFM2018 SD 4-2	1/2a	1/2a, 3a	1/2a
SMFM2018 SD 5-2	1/2b	1/2b, 3b, 7	1/2b
SMFM2018 SD 5-3	1/2b	1/2b, 3b, 7	1/2b
SMFM2018 SD 6-2	1/2b	1/2b, 3b, 7	1/2b
SMFM2018 SD 7-1	3b	1/2b, 3b, 7	3b