scholarly journals Prevalence of serotypes, production of Apx toxins, and antibiotic resistance in strains of Actinobacillus pleuropneumoniae isolated in the CzechRepublic

2012 ◽  
Vol 47 (No. 4) ◽  
pp. 92-98 ◽  
Author(s):  
P. Šatrán ◽  
K. Nedbalcová

Results of serotyping of 122 strains of Actinobacillus pleuropneumoniae isolated on 21 swine farms in the Czech Republic from January 1999 to December 2000 are presented. The highest prevalence was found for serotype 9 (n = 81, 66.4%), followed by serotype 2 (n = 19, 15.7%). Serotypes 1, 3, 5, 7, 8, 11, and 12 were identified only sporadically. Twenty-six of the isolates were tested for gene-toxic profiles and haemolytic and cytotoxic activities. The investigations confirmed the association between serotype on the one hand and apx genotype and Apx phenotype on the other hand. Results of tests of resistance to antibiotic by the disc diffusion method have justified the apprehension of development of resistance due to long-term treatment with antibiotics. Strains with full or intermediary resistance against all the commonly used penicillin- and tetracycline-type antibiotics were found. None of the strains was resistant to florfenicol, norfloxacin, or cefalotine.

2012 ◽  
Vol 50 (No. 5) ◽  
pp. 181-185 ◽  
Author(s):  
K. Nedbalcova ◽  
P. Satran ◽  
Z. Jaglic ◽  
R. Ondriasova ◽  
Z. Kucerova

During the period of 2001 and 2003 a total of 238 isolates of Actinobacillus pleuropneumoniae obtained from 26 pig herds in the Czech Republic (2001 – 73 isolates, 2002 – 110 isolates, 2003 – 55 isolates) were examined for antibiotic resistance by disc diffusion method. Resistance to erythromycin (95.5% to 98.6%), streptomycin (76.4% to 82.7%) and tiamulin (72.7%) was detected most frequently over the whole monitored period. High increase in percentage of resistant isolates to tetracycline (2001 – 11.0%, 2002 – 36.4%, 2003 – 81.8%), doxycycline (2001 – 9.6%, 2002 – 34.6%, 2003 – 61.8%), nalidixic acid (2001 – 2.7%, 2002 – 14.5%, 2003 – 45.5%), and norfloxacin (2001 – 0%, 2002 – 7.3%, 2003 – 34.6%) was found, while differences in resistance to cephalotine (2001 – 1.4%, 2002 – 7.3%, 2003 – 9.1%), cotrimoxazol (2001 – 4.1%, 2002 – 10.0%, 2003 – 7.3%), amoxicillin (2001 – 12.3%, 2002 – 12.7%, 2003 – 10.9%) and amoxicillin-clavulanic acid (2001 – 9.6%, 2002 – 9.1%, 2003 – 10.9%) were small. Prevalence of isolates resistant to sulfasomidine was detected decreasing (2001 – 43.8%, 2002 – 47.3% and 2003 – 29.1%).


2001 ◽  
Vol 120 (5) ◽  
pp. A115-A115 ◽  
Author(s):  
E CALVERT ◽  
L HOUGHTON ◽  
P COOPER ◽  
P WHORWELL

2004 ◽  
Vol 171 (4S) ◽  
pp. 424-424 ◽  
Author(s):  
Monica G. Ferrini ◽  
Eliane G. Valente ◽  
Jacob Rajfer ◽  
Nestor F. Gonzalez-Cadavid

2013 ◽  
Author(s):  
Christina Marel ◽  
Maree Teesson ◽  
Shane Darke ◽  
Katherine Mills ◽  
Joanne Ross ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document