Distribution of antimicrobial resistance among different serovars of Haemophilus parasuis isolates

Prevalence and antimicrobial susceptibility of bacterial pathogens isolates from diseased swine in southwest, China

“…The rate of resistance to ceftiofur were (9.6%) E. coli, (48.2%) K. pneumoniae, (30.1%) P. mirabilis and (23.8%) S. suis isolates in this study, respectively. These findings are very significant difference to the previous reports which displayed high actively to ceftiofur (Marie et al, 2002;Yang et al, 2004;Morioka et al, 2005;Zhou et al, 2010: Wang et al, 2010. The high incidence of ceftiofur resistance in the K.pneumoniae, P. mirabilis and S. suis isolates tested herein was somewhat unexpected, as this drug was introduce into veterinary clinics for use in China only 2 to 3 years ago.…”

Gene Content and Diversity of the Loci Encoding Biosynthesis of Capsular Polysaccharides of the 15 Serovar Reference Strains of Haemophilus parasuis

“…Glässer's disease depends on invasion of the bacteria into the systemic compartment and is characterized by fibrinous polyserositis, polyarthritis, and meningitis (3)(4)(5). It imposes a significant economic and welfare burden on the global pig industry, resulting in a high demand for the use of antimicrobials (1,(6)(7)(8). The vaccines available against this bacterium are whole-cell bacterins, which are protective only against strains of the same serovar (9)(10)(11).…”

Antimicrobial Susceptibility of Bordetella bronchiseptica Isolates from Pigs with Respiratory Diseases on Farms in China

“…Streptococcus suis, Haemophilus parasuis, Escherichia coli, Pasteurella multocida and B. bronchiseptica are the five bacterial species most frequently isolated from pigs with respiratory diseases on farms in China [4,14,17]. Our previous studies determined the antimicrobial susceptibility of S. suis, P. multocida and H. parasuis based on testing of a large number of Chinese isolates [14,16,18]. In contrast to these well-studied pathogens, comparatively little is known about the antimicrobial susceptibility of porcine B. bronchiseptica isolates in China.…”