scholarly journals Antibiotic Resistance Patterns in Cervical Microbes of Gilts and Sows

Animals ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 117
Author(s):  
Cecilia Kellerman ◽  
Pongpreecha Malaluang ◽  
Ingrid Hansson ◽  
Lena Eliasson Selling ◽  
Jane M. Morrell
Keyword(s):  
Antibiotic Resistance ◽  
Ionization Time ◽  
Exact Test ◽  
Flight Mass Spectrometry ◽  
Chi Squared ◽  
Resistance Patterns ◽  
Boar Semen ◽  
Semen Extender ◽  
Antibiotic Resistance Patterns ◽  
Staphylococcus Spp

Extenders for boar semen contain antibiotics, which may induce antimicrobial resistance (AMR) in inseminated females. The objective was to investigate AMR of bacteria isolated from the cervix of sows and gilts in standing heat, representing females previously exposed to antibiotics in the semen extender and non-exposed females, respectively. Cervical swabs were taken from 30 multiparous sows and 30 gilts prior to their first insemination. After culturing on agar plates, bacterial isolates were identified by Matrix-Assisted Laser Desorption/Ionization Time of Flight Mass Spectrometry and antimicrobial minimum inhibitory concentrations (MIC) were determined. Differences in antibiotic resistance between sows and gilts were analyzed by Chi-squared or Fisher’s exact test. Bacteria isolated were mostly Staphylococcus spp., Streptococcus spp. and Corynebacterium spp. Higher MICs were observed for isolates from sows than from gilts. Most (>80%) Corynebacterium spp. were resistant to clindamycin; small numbers (<20%) were resistant to gentamicin, penicillin, vancomycin, ciprofloxacin and rifampicin, with no differences between gilts and sows. Corynebacterium from gilts were more often resistant to tetracycline than those from sows (25% vs. 4.17%; p = 0.04). In conclusion, bacteria from the porcine cervix showed low resistance to most antibiotics except for clindamycin, but antibacterial resistance may increase with increasing parity.

Molecular characterization and antimicrobial susceptibility patterns of Clostridium difficile strains isolated from hospitals in south-east Scotland

2007 ◽  
Vol 56 (7) ◽  
pp. 921-929 ◽  
Author(s):  
Esvet Mutlu ◽  
Allison J. Wroe ◽  
Karla Sanchez-Hurtado ◽  
Jon S. Brazier ◽  
Ian R. Poxton
Keyword(s):  
Antibiotic Resistance ◽  
Clostridium Difficile ◽  
Restriction Analysis ◽  
Common Type ◽  
Resistance Pattern ◽  
Binary Toxin ◽  
Resistance Patterns ◽  
The Common ◽  
Antibiotic Resistance Patterns ◽  
Susceptibility Patterns

Clostridium difficile isolates (n=149) collected in south-east Scotland between August and October 2005 were typed by four different methods and their susceptibility to seven different antibiotics was determined. The aims were to define the types of strain occurring in this region and to determine whether there were any clonal relationships among them with respect to genotype and antibiotic resistance pattern. Ribotyping revealed that 001 was the most common type (n=113, 75.8 %), followed by ribotype 106 (12 isolates, 8.1 %). The majority of the isolates (96.6 %, n=144) were of toxinotype 0, with two toxinotype V isolates and single isolates of toxinotypes I, IV and XIII. PCR and restriction analysis of the fliC gene from 147 isolates gave two restriction patterns: 145 of pattern VII and two of pattern I. Binary toxin genes were detected in only three isolates: two isolates of ribotype 126, toxinotype V, and one isolate of ribotype 023, toxinotype IV. S-types showed more variation, with 64.5 % (n=40) of the common S-type (4939) and 21 % (n=13) of S-type 4741, with six other S-types (one to three isolates each). All ribotype 001 isolates were of the same S-type (4939), with three isolates of other ribotypes being this S-type. No resistance was found to metronidazole or vancomycin, with resistance to tetracycline only found in 4.3 % of the isolates. A high proportion of isolates were resistant to clindamycin (62.9 %), moxifloxacin, ceftriaxone (both 87.1 %) and erythromycin (94.8 %). Resistance to three antibiotics (erythromycin, clindamycin and ceftriaxone) was seen in 66 isolates, with erythromycin, ceftriaxone and moxifloxacin resistance seen in 96 isolates. Resistance to all four of these antibiotics was found in 62 isolates and resistance to five (the above plus tetracycline) in one isolate: a ribotype 001, toxinotype 0 strain. Whilst ribotype 001 was the most commonly encountered type, there was no evidence of clonal relationships when all other typing and antibiotic resistance patterns were taken into account.

Antibiotic resistance patterns of Acinetobacter calcoaceticus–A. baumannii complex species from Colombian hospitals

2013 ◽  
Vol 31 (3) ◽  
pp. 142-146 ◽  
Author(s):  
María Teresa Reguero ◽  
Olga Esther Medina ◽  
María Andrea Hernández ◽  
Diana Vanessa Flórez ◽  
Emilia María Valenzuela ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Acinetobacter Calcoaceticus ◽  
Complex Species ◽  
Resistance Patterns ◽  
Antibiotic Resistance Patterns
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