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Volume 11, Number 12—December 2005

Salmonella and Campylobacter spp. in Northern Elephant Seals, California

Robyn A. Stoddard*†Comments to Author , Frances M.D. Gulland†, E. Rob Atwill*, Judy Lawrence†, Spencer Jang*, and Patricia A. Conrad*
Author affiliations: *University of California, Davis, California, USA; †The Marine Mammal Center, Sausalito, California, USA

Main Article

Table 2

Prevalence and antimicrobial resistance* of Campylobacter spp. isolated from natal-beach and stranded northern elephant seals, California, 2003–2004

Species Natal-beach
Positive seals/total (%)‡ Resistant isolates/total (%) Positive seals/total (%)‡ Resistant isolates/total (%)
Campylobacter jejuni 17/165 (10.3) 0/16§ 54/194 (27.8) 2/54 (3.7)
C. lari 5/165 (3.0) 2/5 (40.0) 26/194 (13.4) 8/23§ (34.8)
Unknown Campylobacter sp. 1/165 (0.6) 0/1 23/194 (11.9) 12/20§ (60.0)
All Campylobacter spp. 22/165 (13.3) 94/194 (48.5)

*Intermediately resistant or resistant to >1 antimicrobial drugs.

†The presence of Campylobacter spp. was not determined for 1 stranded seal because other bacteria overgrew on the plate.

‡Number of seals positive can be fewer than total number of Campylobacter isolates because multiple Campylobacter spp. were isolated from some seals.

§Not all isolates were tested for susceptibility because of contamination or lack of growth after freezing.

Main Article

Page created: February 02, 2012
Page updated: February 02, 2012
Page reviewed: February 02, 2012
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