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Table 2 Prevalence and typing results of the Within-herd prevalence study

From: Faecal shedding and strain diversity of Listeria monocytogenesin healthy ruminants and swine in Northern Spain

Herdsa Countyb n animals analysed n (%) positive animals Serotypec PFGE typed
Sheep (AS) 1 49 1 (2.0) 4b LA-04
Sheep (B) 17 48 2 (4.1) 4b LA-02; LA-24
Sheep (C) 7 50 0 (0.0) n.a. n.a.
Sheep (D) 1 50 0 (0.0) n.a. n.a.
TOTAL Sheep   197 3 (1.5)   
Dairy cattle (AC) 1 46 5 (10.9) 4b (4); 1/2a LA-08; LA-33; LA-34; LA-35; LA-36
Dairy cattle (E) 3 47 34 (72.3) 4b LA-07; LA-28; LA-29; LA-30
Dairy cattle (F) 18 50 3 (6.0) 4b (2); 1/2a LA-05; LA-31; LA-32
Dairy cattle (G) 1 39 2 (5.1) 4b LA-03; LA-46
TOTAL Dairy Cattle   182 44 (24.1)   
Beef cattle (H) 1 39 3 (7.7) 4b n.d.
TOTAL   418 50 (11.9)   
  1. a Herds were designated A-H; herds AS and AC correspond to a sheep and a cattle herd, respectively, that share the same farm premises
  2. b See Fig. 3 for geographical location of counties
  3. c One isolate per positive animal was serotyped, except for herd E for which only 5 isolates were available for serotyping
  4. d PFGE patterns as shown in Fig. 1 n.a., not applicable;
  5. n.d., not done