Identification and typing

The Microbiology Unit of Finnish Food Authority identifies bacterial isolates and carries out typing of bacterial isolates sent by food laboratories.

Biochemical identification

  • Bacterial isolates sent by food laboratories and industry and suspected of being pathogenic


  • Listeria monocytogenes, Escherichia coli (EHEC/VTEC/STEC) O157, O145, O111, O103, O26 and O104 as well as Yersinia enterocolitica

PFGE (pulsed-field gel electrophoresis) typing

  • L. monocytogenes, E. coli O157, Y. enterocolitica, Y. pseudotuberculosis, Streptococcus equi ssp. zooepidemicus and thermophilic Campylobacter species -  to determine the sources of foodborne outbreaks
  • L. monocytogenes - to determine process contaminations in food production lines

Other studies

  • EHEC/VTEC/STEC: PCR detection of virulence genes (stx1, stx2, eae and hlyA)Y. enterocolitica and Y. pseutotuberculosis: biotyping and PCR detection of virulence genes (ail, virF and inv)
  • Vibrio parahaemolyticus: PCR detection of virulence genes (tdh and trh)

Contact persons

Viral typology:

  • Maija Summa, mobile +358 50 517 1267
  • Tuija Kantala, mobile +358 50 323 6050

Other identifications and typologies:

  • Saija Hallanvuo, mobile +358 40 489 3448
  • Maria Simola, mobile +358 40 178 6623
  • Marjaana Hakkinen, mobile +358 400 287 417
Page last updated 7/9/2019