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Lu TY, Sun Z, Liang LY, Zhang J, Guo WL, Wang ZY, Sun J, Liao XP, Zhou YF. Concentration-resistance relationship and PK/PD evaluation of danofloxacin against emergence of resistant Pasteurella multocida in an in vitro dynamic model. J Appl Microbiol 2024; 135:lxae154. [PMID: 38925653 DOI: 10.1093/jambio/lxae154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 06/17/2024] [Accepted: 06/25/2024] [Indexed: 06/28/2024]
Abstract
AIMS This study aimed to assess the pharmacokinetic/pharmacodynamic (PK/PD) targets of danofloxacin to minimize the risk of selecting resistant Pasteurella multocida mutants and to identify the mechanisms underlying their resistance in an in vitro dynamic model, attaining the optimum dosing regimen of danofloxacin to improve its clinical efficacy based on the mutant selection window (MSW) hypothesis. METHODS AND RESULTS Danofloxacin at seven dosing regimens and 5 days of treatment were simulated to quantify the bactericidal kinetics and enrichment of resistant mutants upon continuous antibiotic exposure. The magnitudes of PK/PD targets associated with different efficacies were determined in the model. The 24 h area under the concentration-time curve (AUC) to minimum inhibitory concentration (MIC) ratios (AUC24h/MIC) of danofloxacin associated with bacteriostatic, bactericidal and eradication effects against P. multocida were 34, 52, and 64 h. This translates to average danofloxacin concentrations (Cav) over 24 h being 1.42, 2.17, and 2.67 times the MIC, respectively. An AUC/MIC-dependent antibacterial efficacy and AUC/mutant prevention concentration (MPC)-dependent enrichment of P. multocida mutants in which maximum losses in danofloxacin susceptibility occurred at a simulated AUC24h/MIC ratio of 72 h (i.e. Cav of three times the MIC). The overexpression of efflux pumps (acrAB-tolC) and their regulatory genes (marA, soxS, and ramA) was associated with reduced susceptibility in danofloxacin-exposed P. multocida. The AUC24h/MPC ratio of 19 h (i.e. Cav of 0.8 times the MPC) was determined to be the minimum mutant prevention target value for the selection of resistant P. multocida mutants. CONCLUSIONS The emergence of P. multocida resistance to danofloxacin exhibited a concentration-dependent pattern and was consistent with the MSW hypothesis. The current clinical dosing regimen of danofloxacin (2.5 mg kg-1) may have a risk of treatment failure due to inducible fluoroquinolone resistance.
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Affiliation(s)
- Ting-Yin Lu
- Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, China
| | - Zhen Sun
- Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, China
| | - Liu-Yan Liang
- Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, China
| | - Jing Zhang
- Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, China
- Yantai Fushan Center for Animal Disease Control and Prevention, Yantai, 265500, China
| | - Wen-Long Guo
- Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, China
| | - Zi-Ye Wang
- Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, China
| | - Jian Sun
- Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, China
| | - Xiao-Ping Liao
- Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, China
| | - Yu-Feng Zhou
- Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, China
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Kim EY, Kim TW, Awji EG, Lee EB, Park SC. Comparative Pharmacokinetics of Gentamicin C 1, C 1a and C 2 in Healthy and Infected Piglets. Antibiotics (Basel) 2024; 13:372. [PMID: 38667048 PMCID: PMC11047434 DOI: 10.3390/antibiotics13040372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 04/11/2024] [Accepted: 04/12/2024] [Indexed: 04/29/2024] Open
Abstract
Gentamicin, an aminoglycoside antibiotic, is a mixture of therapeutically active C1, C1a, C2 and other minor components. Despite its decades-long use in pigs and other species, its intramuscular (IM) pharmacokinetics/pharmacodynamics (PKs/PDs) are unknown in piglets. Furthermore, the PKs of many drugs differ between healthy and sick animals. Therefore, we investigated the PKs of gentamicin after a single IM dose (10 mg/kg) in healthy piglets and piglets that were intranasally co-infected with Actinobacillus pleuropneumoniae and Pasteurella multocida (PM). The plasma concentrations were measured using validated liquid chromatography/mass spectrometry. The gentamicin exposure was 36% lower based on the area under the plasma concentration-time curve and 16% lower based on the maximum plasma concentration (Cmax) in the infected piglets compared to the healthy piglets, while it was eliminated faster (shorter half-life and larger clearance) in the infected piglets compared to the healthy piglets. The clearance and volume of distribution were the highest for the C1 component. C1, C1a and C2 accounted for 22-25%, 33-37% and 40-42% of the total gentamicin exposure, respectively. The PK/PD target for the efficacy of aminoglycosides (Cmax/minimum inhibitory concentration (MIC) > 10) could be exceeded for PM, with a greater magnitude in the healthy piglets. We suggest integrating this PK information with antibiotic susceptibility data for other bacteria to make informed antibiotic and dosage regimen selections against piglet infections.
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Affiliation(s)
- Eun-Young Kim
- Laboratory of Veterinary Pharmacokinetics and Pharmacodynamics, Institute for Veterinary Biomedical Science, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea; (E.-Y.K.); (E.G.A.)
| | - Tae-Won Kim
- College of Veterinary Medicine and Institute of Veterinary Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea;
| | - Elias Gebru Awji
- Laboratory of Veterinary Pharmacokinetics and Pharmacodynamics, Institute for Veterinary Biomedical Science, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea; (E.-Y.K.); (E.G.A.)
| | - Eon-Bee Lee
- Laboratory of Veterinary Pharmacokinetics and Pharmacodynamics, Institute for Veterinary Biomedical Science, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea; (E.-Y.K.); (E.G.A.)
- Veterinary Drugs & Biologics Division, Animal and Plant Quarantine Agency, Ministry of Agriculture, Food and Rural Affairs, Gimcheon 39660, Republic of Korea
| | - Seung-Chun Park
- Laboratory of Veterinary Pharmacokinetics and Pharmacodynamics, Institute for Veterinary Biomedical Science, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea; (E.-Y.K.); (E.G.A.)
- Cardiovascular Research Institute, Kyungpook National University, Daegu 41566, Republic of Korea
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Siteavu MI, Drugea RI, Pitoiu E, Ciobotaru-Pirvu E. Antimicrobial Resistance of Actinobacillus pleuropneumoniae, Streptococcus suis, and Pasteurella multocida Isolated from Romanian Swine Farms. Microorganisms 2023; 11:2410. [PMID: 37894069 PMCID: PMC10609511 DOI: 10.3390/microorganisms11102410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/18/2023] [Accepted: 09/19/2023] [Indexed: 10/29/2023] Open
Abstract
Antimicrobial resistance is an important health issue in human and veterinary medicine. The aim of this study was to monitor the antimicrobial resistance of three of the most important bacteria involved in porcine respiratory disease. A total of 465 isolates were tested during the 2017-2022 period for antimicrobial susceptibility for Actinobacillus pleuropneumoniae (n = 137), Streptococcus suis (n = 207), and Pasteurella multocida (n = 121) by disk diffusion method. The results were interpreted by CLSI breakpoints, where available. High rates of susceptibility (from 90 to >99%) were observed for cefquinome, ceftiofur, amoxicillin + clavulanic acid, amoxicillin, penicillin, ampicillin, florfenicol, enrofloxacin, marbofloxacin, and trimethoprim-sulfamethoxazole. A. pleuropneumoniae isolates showed high resistance to streptomycin (77%), gentamycin (45%), tilmicosin (39%) erythromycin (33%), oxytetracycline (19%), and tetracycline (18%). For S. suis, the highest rates of resistance were observed for streptomycin (98%), tetracycline (75%), oxytetracycline (72%), doxycycline (52%), and erythromycin (51%). P. multocida presented a high rate of resistance for streptomycin (63%), tilmicosin (29%), oxytetracycline (13%), and tetracycline (14%). Bacteria isolates maintained high susceptibility against antimicrobial agents usually used against the mainly respiratory tract pathogens of swine. Resistance for streptomycin, tetracycline, oxytetracycline, and tilmicosin was high for all the tested pathogens.
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Affiliation(s)
- Madalina Iulia Siteavu
- Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 050097 Bucharest, Romania
- Synevovet Laboratory, Ilfov County, 077040 Chiajna, Romania
| | - Roxana Ionela Drugea
- Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 050097 Bucharest, Romania
| | - Elena Pitoiu
- Synevovet Laboratory, Ilfov County, 077040 Chiajna, Romania
| | - Emilia Ciobotaru-Pirvu
- Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 050097 Bucharest, Romania
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Somogyi Z, Mag P, Simon R, Kerek Á, Makrai L, Biksi I, Jerzsele Á. Susceptibility of Actinobacillus pleuropneumoniae, Pasteurella multocida and Streptococcus suis Isolated from Pigs in Hungary between 2018 and 2021. Antibiotics (Basel) 2023; 12:1298. [PMID: 37627719 PMCID: PMC10451952 DOI: 10.3390/antibiotics12081298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 07/13/2023] [Accepted: 07/17/2023] [Indexed: 08/27/2023] Open
Abstract
Porcine respiratory disease complex (PRDC) has been a major animal health, welfare, and economic problem in Hungary; therefore, great emphasis should be put on both the prevention and control of this complex disease. As antibacterial agents are effective tools for control, antibiotic susceptibility testing is indispensable for the proper implementation of antibacterial therapy and to prevent the spread of resistance. The best method for this is to determine the minimum inhibitory concentration (MIC) by the broth microdilution method. In our study, we measured the MIC values of 164 Actinobacillus pleuropneumoniae, 65 Pasteurella multocida, and 118 Streptococcus suis isolates isolated from clinical cases against the following antibacterial agents: amoxicillin, ceftiofur, cefquinome, oxytetracycline, doxycycline, tylosin, tilmicosin, tylvalosin, tulathromycin, lincomycin, tiamulin, florfenicol, colistin, enrofloxacin, and sulfamethoxazole-trimethoprim. Outstanding efficacy against A. pleuropneumoniae isolates was observed with ceftiofur (100%) and tulathromycin (100%), while high levels of resistance were observed against cefquinome (92.7%) and sulfamethoxazole-trimethoprim (90.8%). Ceftiofur (98.4%), enrofloxacin (100%), florfenicol (100%), and tulathromycin (100%) were found to be highly effective against P. multocida isolates, while 100% resistance was detected against the sulfamethoxazole-trimethoprim combination. For the S. suis isolates, only ceftiofur (100%) was not found to be resistant, while the highest rate of resistance was observed against the sulfamethoxazole-trimethoprim combination (94.3%). An increasing number of studies report multi-resistant strains of all three pathogens, making their monitoring a high priority for animal and public health.
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Affiliation(s)
- Zoltán Somogyi
- Department of Pharmacology and Toxicology, University of Veterinary Medicine, István Str. 2., H-1078 Budapest, Hungary; (P.M.); (R.S.); (Á.K.); (Á.J.)
- National Laboratory of Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, University of Veterinary Medicine, H-1078 Budapest, Hungary
| | - Patrik Mag
- Department of Pharmacology and Toxicology, University of Veterinary Medicine, István Str. 2., H-1078 Budapest, Hungary; (P.M.); (R.S.); (Á.K.); (Á.J.)
- National Laboratory of Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, University of Veterinary Medicine, H-1078 Budapest, Hungary
| | - Réka Simon
- Department of Pharmacology and Toxicology, University of Veterinary Medicine, István Str. 2., H-1078 Budapest, Hungary; (P.M.); (R.S.); (Á.K.); (Á.J.)
| | - Ádám Kerek
- Department of Pharmacology and Toxicology, University of Veterinary Medicine, István Str. 2., H-1078 Budapest, Hungary; (P.M.); (R.S.); (Á.K.); (Á.J.)
- National Laboratory of Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, University of Veterinary Medicine, H-1078 Budapest, Hungary
| | - László Makrai
- National Laboratory of Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, University of Veterinary Medicine, H-1078 Budapest, Hungary
- Department of Microbiology and Infectious Diseases, University of Veterinary Medicine, István Str. 2., H-1078 Budapest, Hungary
| | - Imre Biksi
- Department of Pathology, University of Veterinary Medicine, István Str. 2., H-1078 Budapest, Hungary;
- SCG Diagnostics Ltd., HU-2437 Délegyháza, Hungary
| | - Ákos Jerzsele
- Department of Pharmacology and Toxicology, University of Veterinary Medicine, István Str. 2., H-1078 Budapest, Hungary; (P.M.); (R.S.); (Á.K.); (Á.J.)
- National Laboratory of Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, University of Veterinary Medicine, H-1078 Budapest, Hungary
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Antimicrobial Resistance of and Genomic Insights into Pasteurella multocida Strains Isolated from Australian Pigs. Microbiol Spectr 2023; 11:e0378422. [PMID: 36651773 PMCID: PMC9927299 DOI: 10.1128/spectrum.03784-22] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Infection with Pasteurella multocida represents a significant economic threat to Australian pig producers, yet our knowledge of its antimicrobial susceptibilities is lagging, and genomic characterization of P. multocida strains associated with porcine lower respiratory disease is internationally scarce. This study utilized high-throughput robotics to phenotypically and genetically characterize an industry-wide collection of 252 clinical P. multocida isolates that were recovered between 2014 and 2019. Overall, antimicrobial resistance was found to be low, with clinical resistance below 1% for all tested antimicrobials except those from the tetracycline class. Five dominant sequence types, representing 64.8% of all isolates, were identified; they were disseminated across farms and had previously been detected in various animal hosts and countries. P. multocida in Australian farms remain controllable via current antimicrobial therapeutic protocols. The identification of highly dominant, interspecies-infecting strains provides insight into the epidemiology of the opportunistic pathogen, and it highlights a biosecurity threat to the Australian livestock industry. IMPORTANCE Pasteurellosis is rated by the World Animal Health Organisation (OIE) as a high-impact disease in livestock. Although it is well understood in many host-disease contexts, our understanding of the organism in porcine respiratory disease is limited. Given its high frequency of involvement in porcine respiratory disease complex (PRDC), it is important that we are aware of its antimicrobial susceptibilities so that we can respond quickly and appropriately with antimicrobial therapy. Genetic insights about the organism can help us to better understand its epidemiology and inform our biosecurity practices and prophylactic management.
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Wei A, Dhaduk N, Taha B. Wrist abscess due to drug-resistant Pasteurella multocida. IDCases 2021; 26:e01277. [PMID: 34522615 PMCID: PMC8426525 DOI: 10.1016/j.idcr.2021.e01277] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 08/31/2021] [Indexed: 11/29/2022] Open
Abstract
Many cases of cat and dog bites are associated with Pasteurella spp. infections. Antimicrobial therapy usually entails a β-lactam-β-lactamase inhibitor combination such as amoxicillin-clavulanic acid. Drug resistance in human Pasteurella spp. infections has rarely been reported in literature. In this report, we introduce the first documented case of a human Pasteurella spp. infection with resistance to amoxicillin-clavulanic acid. The potential emergence of drug-resistant Pasteurella spp may alter our therapeutic approach to animal bites in the future. This case highlights the need for further epidemiologic studies on Pasteurella spp antibiotic susceptibility patterns in both humans and cats.
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Affiliation(s)
- Abraham Wei
- Rutgers New Jersey Medical School, Division of Infectious Diseases, Newark, NJ 07101, USA
| | - Nehal Dhaduk
- Rutgers New Jersey Medical School, Newark, NJ 07101, USA
| | - Basil Taha
- Rutgers New Jersey Medical School, Division of Infectious Diseases, Newark, NJ 07101, USA
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Prajapati A, Chanda MM, Dhayalan A, Yogisharadhya R, Chaudhary JK, Mohanty NN, Shivachandra SB. Variability in in vitro biofilm production and antimicrobial sensitivity pattern among Pasteurella multocida strains. BIOFOULING 2020; 36:938-950. [PMID: 33059484 DOI: 10.1080/08927014.2020.1833192] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 09/28/2020] [Accepted: 10/02/2020] [Indexed: 06/11/2023]
Abstract
Biofilm production, hitherto an uncharacterized feature among circulating Pasteurella multocida strains, was studied along with the antibiotic susceptibility pattern. On the basis of biofilm formation ability, all the strains were categorized into four groups under six different culture conditions: strong biofilm-forming (22%), moderate (19%), weak (51%), and non-adherent (7%). Strains from serogroups A and B formed significant biofilms in at least one culture condition whereas strains from serogroup D were unable to form biofilms. All strains were found to be susceptible to tetracycline. In addition, the correlation between diverse factors (host, capsule type, clinical condition and the tadD gene) as well as antimicrobial susceptibility in biofilm production were analyzed by Joint distribution models, and showed that enrofloxacin and azithromycin resistant strains were positively correlated with strong biofilm production.
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Affiliation(s)
- Awadhesh Prajapati
- ICAR-National Institute of Veterinary Epidemiology and Disease Informatics (NIVEDI), Bengaluru, Karnataka, India
| | - Mohammed Mudassar Chanda
- ICAR-National Institute of Veterinary Epidemiology and Disease Informatics (NIVEDI), Bengaluru, Karnataka, India
| | - Arul Dhayalan
- ICAR-National Institute of Veterinary Epidemiology and Disease Informatics (NIVEDI), Bengaluru, Karnataka, India
| | - Revanaiah Yogisharadhya
- ICAR-National Institute of Veterinary Epidemiology and Disease Informatics (NIVEDI), Bengaluru, Karnataka, India
| | - Jitendra Kumar Chaudhary
- College of Veterinary Sciences and Animal Husbandry, Central Agricultural University (CAU), Aizwal, Mizoram, India
| | - Nihar Nalini Mohanty
- CCS-National Institute of Animal Health (NIAH), Baghpat, Uttar Pradesh (UP), India
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Cuevas I, Carbonero A, Cano D, García-Bocanegra I, Amaro MÁ, Borge C. Antimicrobial resistance of Pasteurella multocida type B isolates associated with acute septicemia in pigs and cattle in Spain. BMC Vet Res 2020; 16:222. [PMID: 32605567 PMCID: PMC7325301 DOI: 10.1186/s12917-020-02442-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Accepted: 06/23/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Pasteurella multocida is the etiological agent responsible for several diseases in a wide range of hosts around the world and thus, causes serious economic losses. Acute septicemia associated with capsular type B P. multocida has recently emerged in Europe and continuous outbreaks of these acute processes have been described in Spain since they were first detected in pigs in 2009 and cattle in 2015. The scarcity of studies on the antimicrobial susceptibility of this capsular type of P. multocida and growing concern about the general increase of antimicrobial resistance mean that studies related to the performance of type B P. multocida against antibiotics are necessary to establish accurate treatments and to monitor antimicrobial resistances. RESULTS Seventy-six isolates of P. multocida type B from pigs and cattle with acute septicemia were tested for susceptibility to 10 different antimicrobials. Bovine isolates were susceptible to all the antibiotics we tested except for lincomycin (94.4% of isolates were resistant). However, the antimicrobials we tested were less effective against swine isolates, of which none were susceptible to lincomycin. Furthermore, 29.3% swine isolates were resistant to tetracycline, 27.6% to penicillin, 20.7% to oxytetracycline, 17.3% to chloramphenicol, 15.5% to gentamicin, and 3.4% to enrofloxacin; no resistance to ceftiofur was detected. No multidrug resistant isolates were detected from cattle, while 25.86% of swine isolates were resistant to three or more antibiotic classes. CONCLUSIONS In this study, the lower resistance rates and multidrug resistant isolates reported for P. multocida type B derived from cattle compared to those isolated from pigs may be related to the increased use of antibiotics in the porcine industry in Spain. Lincomycin is not recommended for the treatment of acute septicemia in pigs or cattle, rather, the use of ceftiofur, enrofloxacin, or gentamicin is indicated as an emergency treatment in the early stages of disease; once the susceptibility results are known, the use of tetracyclines, penicillin, or chloramphenicol should be prioritized. The increase in multidrug resistant isolates and antimicrobial resistance rates indicates that more attention should be paid to prevention as well as the responsible use of antibiotics.
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Affiliation(s)
- Inmaculada Cuevas
- Department of Animal Health (AGR-149). Campus of International Agri-Food Excellence CeiA3, University of Córdoba, Rabanales University Campus, 14071 Córdoba, Spain
| | - Alfonso Carbonero
- Department of Animal Health (AGR-149). Campus of International Agri-Food Excellence CeiA3, University of Córdoba, Rabanales University Campus, 14071 Córdoba, Spain
| | - David Cano
- Department of Animal Health (AGR-149). Campus of International Agri-Food Excellence CeiA3, University of Córdoba, Rabanales University Campus, 14071 Córdoba, Spain
| | - Ignacio García-Bocanegra
- Department of Animal Health (AGR-149). Campus of International Agri-Food Excellence CeiA3, University of Córdoba, Rabanales University Campus, 14071 Córdoba, Spain
| | - Manuel Ángel Amaro
- Department of Bromatology. Campus of International Agri-Food Excellence CeiA3, University of Córdoba, Rabanales University Campus, 14071 Córdoba, Spain
| | - Carmen Borge
- Department of Animal Health (AGR-149). Campus of International Agri-Food Excellence CeiA3, University of Córdoba, Rabanales University Campus, 14071 Córdoba, Spain
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Hurtado R, Maturrano L, Azevedo V, Aburjaile F. Pathogenomics insights for understanding Pasteurella multocida adaptation. Int J Med Microbiol 2020; 310:151417. [PMID: 32276876 DOI: 10.1016/j.ijmm.2020.151417] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 03/01/2020] [Accepted: 03/19/2020] [Indexed: 12/16/2022] Open
Abstract
Pasteurella multocida is an important veterinary pathogen able to infect a wide range of animals in a broad spectrum of diseases. P. multocida is a complex microorganism in relation to its genomic flexibility, host adaptation and pathogenesis. Epidemiological analysis based on multilocus sequence typing, serotyping, genotyping, association with virulence genes and single nucleotide polymorphisms (SNPs), enables assessment of intraspecies diversity, phylogenetic and strain-specific relationships associated with host predilection or disease. A high number of sequenced genomes provides us a more accurate genomic and epidemiological interpretation to determine whether certain lineages can infect a host or produce disease. Comparative genomic analysis and pan-genomic approaches have revealed a flexible genome for hosting mobile genetic elements (MGEs) and therefore significant variation in gene content. Moreover, it was possible to find lineage-specific MGEs from the same niche, showing acquisition probably due to an evolutionary convergence event or to a genetic group with infective capacity. Furthermore, diversification selection analysis exhibits proteins exposed on the surface subject to selection pressures with an interstrain heterogeneity related to their ability to adapt. This article is the first review describing the genomic relationship to elucidate the diversity and evolution of P. multocida.
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Affiliation(s)
- Raquel Hurtado
- Laboratory of Cellular and Molecular Genetics, Federal University of Minas Gerais, Belo Horizonte, 31270-901, Minas Gerais, Brazil; Laboratory of Molecular Biology and Genetics, Veterinary Medicine Faculty, San Marcos University, Lima, Peru
| | - Lenin Maturrano
- Laboratory of Molecular Biology and Genetics, Veterinary Medicine Faculty, San Marcos University, Lima, Peru
| | - Vasco Azevedo
- Laboratory of Cellular and Molecular Genetics, Federal University of Minas Gerais, Belo Horizonte, 31270-901, Minas Gerais, Brazil
| | - Flávia Aburjaile
- Laboratory of Cellular and Molecular Genetics, Federal University of Minas Gerais, Belo Horizonte, 31270-901, Minas Gerais, Brazil; Laboratory of Plant Genetics and Biotechnology, Federal University of Pernambuco, Recife, 50670-901, Pernambuco, Brazil.
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Bourély C, Cazeau G, Jouy E, Haenni M, Madec JY, Jarrige N, Leblond A, Gay E. Antimicrobial resistance of Pasteurella multocida isolated from diseased food-producing animals and pets. Vet Microbiol 2019; 235:280-284. [PMID: 31383313 DOI: 10.1016/j.vetmic.2019.07.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 07/11/2019] [Accepted: 07/19/2019] [Indexed: 12/29/2022]
Abstract
Surveillance of Pasteurella multocida resistance in food-producing animals is essential to guide the first-line treatment of respiratory diseases and to limit economic losses. Since Pasteurella are the most common bacteria isolated from dog and cat bites, this surveillance is also needed to guide treatment in humans in case of bites. The aim of this study was to characterize the phenotypic resistance of P. multocida strains isolated from respiratory infections in animals, including both food-producing animals and pets. Data collected between 2012 and 2017 by the French national surveillance network for antimicrobial resistance referred to as RESAPATH were analyzed. The proportions of resistance to antimicrobials of relevance in veterinary and human medicines were estimated for each animal species. For cattle, resistance trends over the period were investigated using non-linear analysis applied to time-series. In total, 5356 P. multocida isolates were analyzed. Proportions of resistance of P. multocida were almost all below 20% over the period, and, more precisely, all resistance proportions were below 10% for rabbits, sheep and dogs. The highest resistance proportions to enrofloxacin were identified for cattle (4.5%) and dogs (5.2%). Despite its frequent use in livestock, resistance to florfenicol was less than 1% in P. multocida strains, regardless of the animal species considered. Time series analyses revealed continuous increases in resistance to tetracycline, tilmicosin, flumequine and fluoroquinolones in P. multocida strains isolated from cattle. These trends contrast with the decrease in use of antibiotics in cattle in France and with the decrease in resistance observed in E. coli isolated from diseased cattle.
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Affiliation(s)
- Clémence Bourély
- École Nationale des Services Vétérinaires, VetAgro Sup, 69280 Marcy l'Étoile, France; Université de Lyon, ANSES, Laboratoire de Lyon, Unité Épidémiologie et appui à la surveillance, 31 avenue Tony Garnier, 69007 Lyon, France; EPIA, UMR Epidémiologie des Maladies Animales et Zoonotiques, INRA, VetAgro Sup, Université de Lyon, 69280, Marcy L'Etoile, France
| | - Géraldine Cazeau
- Université de Lyon, ANSES, Laboratoire de Lyon, Unité Épidémiologie et appui à la surveillance, 31 avenue Tony Garnier, 69007 Lyon, France
| | - Eric Jouy
- ANSES, Laboratoire de Ploufragan-Plouzané-Niort, Unité Mycoplasmologie, Bactériologie et Antibiorésistance, Université Bretagne Loire, Technopôle Saint-Brieuc Armor, 22440 Ploufragan, France
| | - Marisa Haenni
- Université de Lyon, ANSES, Laboratoire de Lyon, Unité Antibiorésistance et Virulence Bactériennes, 31 avenue Tony Garnier, Lyon 69007, France
| | - Jean-Yves Madec
- Université de Lyon, ANSES, Laboratoire de Lyon, Unité Antibiorésistance et Virulence Bactériennes, 31 avenue Tony Garnier, Lyon 69007, France
| | - Nathalie Jarrige
- Université de Lyon, ANSES, Laboratoire de Lyon, Unité Épidémiologie et appui à la surveillance, 31 avenue Tony Garnier, 69007 Lyon, France
| | - Agnès Leblond
- EPIA, UMR Epidémiologie des Maladies Animales et Zoonotiques, INRA, VetAgro Sup, Université de Lyon, 69280, Marcy L'Etoile, France
| | - Emilie Gay
- Université de Lyon, ANSES, Laboratoire de Lyon, Unité Épidémiologie et appui à la surveillance, 31 avenue Tony Garnier, 69007 Lyon, France.
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