Figure 1From: Faecal shedding and strain diversity of Listeria monocytogenesin healthy ruminants and swine in Northern SpainDendrogram (UPGMA) of the Apa I PFGE patterns of L. monocytogenes isolates from 6 different herds (A-G as in Table 2). The isolates have been coded according to sample type of origin: P, pool of faeces; I, individual faecal sample.Back to article page