scholarly journals Identification and Differences in Antimicrobial Susceptibility of Lactococcus garvieae from Farmed Grey Mullet ( Mugil cephalus ) and Non-Grey Mullet in Southern Taiwan

Author(s):  
Jian-Lin Lee ◽  
Shu-Yung Chiu ◽  
Che-Chun Chen ◽  
Chishih Chu ◽  
Jiann-Hsiung Wang

Streptococcal infection is a main infectious diseases for farmed grey mullet (Mugil cephalus). This study were to identify spreptococcal species in diseased farmed grey mullet and to investigate differences in susceptibility to 13 antibiotics and in genotypes between the stains from the grey mullet and non-grey mullet. 170 samples from diseased farmed grey mullet were collected from three county in 2013 -2016. Multiplex PCR identified L. garviea (146) as the main pathogen, S. agalactia (9), S. dysgalactiae (19), and double infection (5), but no S. iniae. The prevalence changed annually and differed among three counties. Pulsed-field gel electrophoresis (PFGE) analysis demonstrated identical genotype with an ApaI-digested DNA pattern. Disc diffusion results demonstrated differences in antibiotic susceptibility between the strains from grey mullet (146) and non-grey mullet (30). Almost all strains resisted to clindamycin and all strains were susceptible to six antibiotic in grey mullet and 4 antibiotics in non-grey mullet. The reduced susceptible strains was more in non-grey mullet than grey mullet group. The reduced susceptible strains were observed the highest in 2014 and in Chiayi county and decreased from 2014 to 2016. However, the strains with reduced susceptibility to ceftriaxone, cirpofoxacin, moxifloxacin, tetracycline for human treatment were observed.

Aquaculture ◽  
2021 ◽  
Vol 536 ◽  
pp. 736418 ◽  
Author(s):  
Sandra Ramos-Júdez ◽  
François Chauvigné ◽  
Wendy Ángela González-López ◽  
Hanna Rosenfeld ◽  
Joan Cerdà ◽  
...  
Keyword(s):  

Aquaculture ◽  
2021 ◽  
Vol 536 ◽  
pp. 736423
Author(s):  
Krishna Sukumaran ◽  
Dani Thomas ◽  
M.U. Rekha ◽  
J. Raymond Jani Angel ◽  
Aritra Bera ◽  
...  

2021 ◽  
Author(s):  
Jani Angel J. Raymond ◽  
Mudagandur Shashi Shekhar ◽  
Vinaya Kumar Katneni ◽  
Ashok Kumar Jangham ◽  
Sudheesh Kommu Prabhudas ◽  
...  

Author(s):  
Yu-Lan Wang ◽  
Kuo-Sheng Fan ◽  
Hui-Ju Tsai ◽  
Chin-Yu Cheng ◽  
Chia-Kai Tang ◽  
...  

Background: A probable outbreak of respiratory disease in a nursing home serving exclusively patients in a persistent vegetative state (PVS) resulted in hospitalization of eight patients. Methods: Microbes from all PVS patients’ respiratory tracks and environments were surveyed by microbiological methods. Major pathogenic microbes were analyzed by pulsed-field gel electrophoresis (PFGE). Results: 24 PVS patients were investigated. Half were colonized with at least four different pathogenic microbes in their respiratory tracts. The most prevalent microbes were Pseudomonas aeruginosa in 15 patients (62.5%), Serratia marcescens in 14 (58.3%), Citrobacter koseri in nine (37.5%), Streptococcus pneumoniae in six (25%), and Proteus mirabilis in five (20.8%). By PFGE analysis, one major pulsotype each was identified for S. marcescens (92.9%, 13/14) and S. pneumoniae (100%, 6/6), whereas diverse pulsotypes were identified for P. aeruginosa, C. koseri, and P. mirabilis. Both major pulsotypes for S. marcescens and S. pneumoniae were also found in strains from patients outside the nursing home. No environmental reservoir was found for prevalent microbes. Conclusions: Clonal transmission of S. marcescens and S. pneumoniae among PVS patients in the nursing home was evident, indicating a need to enforce control measures to reduce threats to this type of facility.


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