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Speletas M, Voulgaridi I, Bogogiannidou Z, Sarrou S, Kyritsi MA, Theodoridou A, Dadouli K, Matziri A, Vontas A, Pappa D, Konstantinou AK, Tsigalou C, Kalala F, Mouchtouri VA, Hadjichristodoulou C. Dynamics of Anti-SARS-CoV-2 IgA and IgG Responses and Their Protective Effect against Fatal Disease after Booster COVID-19 Vaccination. Vaccines (Basel) 2023; 12:12. [PMID: 38276671 PMCID: PMC10819547 DOI: 10.3390/vaccines12010012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 12/14/2023] [Accepted: 12/19/2023] [Indexed: 01/27/2024] Open
Abstract
During the post-coronavirus disease (COVID-19) era, a primary question is whether booster vaccination is effective against severe COVID-19 and should be recommended, particularly to individuals at high risk for severe disease (i.e., the elderly or those with additional severe comorbidities). From December 2020 to February 2023, a cohort study was conducted to estimate IgG and IgA immunogenicity and the dynamics of booster mono- and bivalent COVID-19 mRNA vaccines in 260 individuals (male/female: 114/146, median age: 68 years, interquartile range (IQR) = 31) who initially received either mRNA (218) or adenovirus-vector-based vaccines (42). Participants were followed until the 90th day after the third booster dose. Our cohort study indicated a beneficial effect of booster vaccination on the magnitude of IgG and IgA severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibodies. We found that second and third booster doses were more protective than one against fatal disease (p = 0.031, OR 0.08). In conclusion, booster COVID-19 vaccination should be strongly recommended, especially to individuals at high risk for severe/fatal disease.
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Affiliation(s)
- Matthaios Speletas
- Department of Immunology & Histocompatibility, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece; (M.S.); (S.S.); (A.T.); (F.K.)
| | - Ioanna Voulgaridi
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece; (I.V.); (Z.B.); (M.A.K.); (K.D.); (A.M.); (A.V.); (V.A.M.)
| | - Zacharoula Bogogiannidou
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece; (I.V.); (Z.B.); (M.A.K.); (K.D.); (A.M.); (A.V.); (V.A.M.)
| | - Styliani Sarrou
- Department of Immunology & Histocompatibility, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece; (M.S.); (S.S.); (A.T.); (F.K.)
| | - Maria A. Kyritsi
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece; (I.V.); (Z.B.); (M.A.K.); (K.D.); (A.M.); (A.V.); (V.A.M.)
| | - Aikaterini Theodoridou
- Department of Immunology & Histocompatibility, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece; (M.S.); (S.S.); (A.T.); (F.K.)
| | - Katerina Dadouli
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece; (I.V.); (Z.B.); (M.A.K.); (K.D.); (A.M.); (A.V.); (V.A.M.)
| | - Alexia Matziri
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece; (I.V.); (Z.B.); (M.A.K.); (K.D.); (A.M.); (A.V.); (V.A.M.)
| | - Alexandros Vontas
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece; (I.V.); (Z.B.); (M.A.K.); (K.D.); (A.M.); (A.V.); (V.A.M.)
| | - Dimitra Pappa
- Department of Pathology, Faculty of Medicine, University Hospital of Larissa, 41500 Larissa, Greece;
| | | | - Christina Tsigalou
- Laboratory of Hygiene and Environmental Protection, Democritus University of Thrace, Dragana Campus, 68100 Alexandroupolis, Greece;
| | - Fani Kalala
- Department of Immunology & Histocompatibility, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece; (M.S.); (S.S.); (A.T.); (F.K.)
| | - Varvara A. Mouchtouri
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece; (I.V.); (Z.B.); (M.A.K.); (K.D.); (A.M.); (A.V.); (V.A.M.)
| | - Christos Hadjichristodoulou
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece; (I.V.); (Z.B.); (M.A.K.); (K.D.); (A.M.); (A.V.); (V.A.M.)
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Bakaros E, Voulgaridi I, Paliatsa V, Gatselis N, Germanidis G, Asvestopoulou E, Alexiou S, Botsfari E, Lygoura V, Tsachouridou O, Mimtsoudis I, Tseroni M, Sarrou S, Mouchtouri VA, Dadouli K, Kalala F, Metallidis S, Dalekos G, Hadjichristodoulou C, Speletas M. Innate Immune Gene Polymorphisms and COVID-19 Prognosis. Viruses 2023; 15:1784. [PMID: 37766191 PMCID: PMC10537595 DOI: 10.3390/v15091784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 08/19/2023] [Accepted: 08/19/2023] [Indexed: 09/29/2023] Open
Abstract
COVID-19 is characterized by a heterogeneous clinical presentation and prognosis. Risk factors contributing to the development of severe disease include old age and the presence of comorbidities. However, the genetic background of the host has also been recognized as an important determinant of disease prognosis. Considering the pivotal role of innate immunity in the control of SARS-CoV-2 infection, we analyzed the possible contribution of several innate immune gene polymorphisms (including TLR2-rs5743708, TLR4-rs4986790, TLR4-rs4986791, CD14-rs2569190, CARD8-rs1834481, IL18-rs2043211, and CD40-rs1883832) in disease severity and prognosis. A total of 249 individuals were enrolled and further divided into five (5) groups, according to the clinical progression scale provided by the World Health Organization (WHO) (asymptomatic, mild, moderate, severe, and critical). We identified that elderly patients with obesity and/or diabetes mellitus were more susceptible to developing pneumonia and respiratory distress syndrome after SARS-CoV-2 infection, while the IL18-rs1834481 polymorphism was an independent risk factor for developing pneumonia. Moreover, individuals carrying either the TLR2-rs5743708 or the TLR4-rs4986791 polymorphisms exhibited a 3.6- and 2.5-fold increased probability for developing pneumonia and a more severe disease, respectively. Our data support the notion that the host's genetic background can significantly affect COVID-19 clinical phenotype, also suggesting that the IL18-rs1834481, TLR2-rs5743708, and TLR4-rs4986791 polymorphisms may be used as molecular predictors of COVID-19 clinical phenotype.
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Affiliation(s)
- Evangelos Bakaros
- Department of Immunology & Histocompatibility, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece; (E.B.); (V.P.); (E.A.); (S.A.); (E.B.); (S.S.); (F.K.)
| | - Ioanna Voulgaridi
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece; (I.V.); (V.A.M.); (K.D.); (C.H.)
| | - Vassiliki Paliatsa
- Department of Immunology & Histocompatibility, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece; (E.B.); (V.P.); (E.A.); (S.A.); (E.B.); (S.S.); (F.K.)
| | - Nikolaos Gatselis
- Department of Medicine and Research Laboratory of Internal Medicine, National Expertise Center of Greece in Autoimmune Liver Diseases, Full Member of the European Reference Network on Hepatological Diseases (ERN RARE-LIVER), General University Hospital of Larissa, 41110 Larissa, Greece; (N.G.); (V.L.); (G.D.)
| | - Georgios Germanidis
- First Internal Medicine Department, Infectious Diseases Division, AHEPA Hospital, Medical School, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece; (G.G.); (O.T.); (I.M.); (S.M.)
| | - Evangelia Asvestopoulou
- Department of Immunology & Histocompatibility, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece; (E.B.); (V.P.); (E.A.); (S.A.); (E.B.); (S.S.); (F.K.)
| | - Stamatia Alexiou
- Department of Immunology & Histocompatibility, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece; (E.B.); (V.P.); (E.A.); (S.A.); (E.B.); (S.S.); (F.K.)
| | - Elli Botsfari
- Department of Immunology & Histocompatibility, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece; (E.B.); (V.P.); (E.A.); (S.A.); (E.B.); (S.S.); (F.K.)
| | - Vasiliki Lygoura
- Department of Medicine and Research Laboratory of Internal Medicine, National Expertise Center of Greece in Autoimmune Liver Diseases, Full Member of the European Reference Network on Hepatological Diseases (ERN RARE-LIVER), General University Hospital of Larissa, 41110 Larissa, Greece; (N.G.); (V.L.); (G.D.)
| | - Olga Tsachouridou
- First Internal Medicine Department, Infectious Diseases Division, AHEPA Hospital, Medical School, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece; (G.G.); (O.T.); (I.M.); (S.M.)
| | - Iordanis Mimtsoudis
- First Internal Medicine Department, Infectious Diseases Division, AHEPA Hospital, Medical School, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece; (G.G.); (O.T.); (I.M.); (S.M.)
| | - Maria Tseroni
- National Public Health Organization, 15123 Athens, Greece;
| | - Styliani Sarrou
- Department of Immunology & Histocompatibility, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece; (E.B.); (V.P.); (E.A.); (S.A.); (E.B.); (S.S.); (F.K.)
| | - Varvara A. Mouchtouri
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece; (I.V.); (V.A.M.); (K.D.); (C.H.)
| | - Katerina Dadouli
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece; (I.V.); (V.A.M.); (K.D.); (C.H.)
| | - Fani Kalala
- Department of Immunology & Histocompatibility, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece; (E.B.); (V.P.); (E.A.); (S.A.); (E.B.); (S.S.); (F.K.)
| | - Simeon Metallidis
- First Internal Medicine Department, Infectious Diseases Division, AHEPA Hospital, Medical School, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece; (G.G.); (O.T.); (I.M.); (S.M.)
| | - George Dalekos
- Department of Medicine and Research Laboratory of Internal Medicine, National Expertise Center of Greece in Autoimmune Liver Diseases, Full Member of the European Reference Network on Hepatological Diseases (ERN RARE-LIVER), General University Hospital of Larissa, 41110 Larissa, Greece; (N.G.); (V.L.); (G.D.)
| | - Christos Hadjichristodoulou
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 41222 Larissa, Greece; (I.V.); (V.A.M.); (K.D.); (C.H.)
| | - Matthaios Speletas
- Department of Immunology & Histocompatibility, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece; (E.B.); (V.P.); (E.A.); (S.A.); (E.B.); (S.S.); (F.K.)
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Galanopoulos AP, Bogogiannidou Z, Sarrou S, Voulgaridi I, Mouchtouri VA, Hadjichristodoulou C, Speletas M. Molecular Analysis of Hot-Spot Regions of ACE2 and TMPRSS2 in SARS-CoV-2 "Invulnerable" Individuals. Cureus 2023; 15:e43344. [PMID: 37700940 PMCID: PMC10493175 DOI: 10.7759/cureus.43344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/11/2023] [Indexed: 09/14/2023] Open
Abstract
Background Coronavirus disease 2019 (COVID-19) is characterized by a wide clinical variability, ranging from acute illness that may require hospitalization and intensive care unit management to mild and even asymptomatic disease. A more exciting phenomenon is the presence of individuals who came into close contact with COVID-19 patients without prophylaxis but were never infected by SARS-CoV-2, even as an asymptomatic disease. Aims We describe four such "invulnerable" individuals and explore if they carry genetic defects in hot-spot regions of ACE2 and TMPRSS2 genes, which are responsible for virus entry into the host cells. Materials and methods Anti-S humoral and cellular immune responses were evaluated in the study participants through chemiluminescent microparticle immunoassay (CMIA) and enzyme-linked immunosorbent assay (ELISA) and interferon (IFN-γ) secretion measurement, respectively. Moreover, the hot-spot locations of ACE2 and TMPRSS2 were analyzed by polymerase chain reaction (PCR) sequencing in order to investigate potential genetic defects. Results No pathogenic genetic defects in ACE2 and TMPRSS2 were identified in the study participants. However, a functional polymorphism (rs12329760) located in exon 6 of the TMPRSS2 gene was detected in two of the four participants. In addition, it is worth noting that two individuals displayed adequate humoral and cellular immune responses after COVID-19 vaccination several months after their initial exposure to SARS-CoV-2. Conclusions We suggest that ACE2 and TMPRSS2 genes are not responsible for the "invulnerable" phenotype against COVID-19.
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Affiliation(s)
- Achilleas P Galanopoulos
- Department of Immunology & Histocompatibility, Faculty of Medicine, University of Thessaly, Larissa, GRC
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, Larissa, GRC
| | - Zacharoula Bogogiannidou
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, Larissa, GRC
| | - Styliani Sarrou
- Department of Immunology & Histocompatibility, Faculty of Medicine, University of Thessaly, Larissa, GRC
| | - Ioanna Voulgaridi
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, Larissa, GRC
| | - Varvara A Mouchtouri
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, Larissa, GRC
| | | | - Matthaios Speletas
- Department of Immunology & Histocompatibility, Faculty of Medicine, University of Thessaly, Larissa, GRC
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Komnos G, Banios K, Kolonia K, Poultsides LA, Petinaki E, Sarrou S, Zintzaras E, Karachalios T. Do trabecular metal and cancellous titanium implants reduce the risk of late haematogenous infection? An experimental study in rabbits. Hip Int 2021; 31:766-773. [PMID: 32460572 DOI: 10.1177/1120700020928891] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
AIM This study evaluated the late resistance to haematogenous contamination by microbial pathogens of implants and bone-implant interface and the development of late clinical infection when cementless components with different surface or structural properties are implanted. MATERIAL AND METHODS 50 adult male New Zealand white rabbits were divided into 5 groups of 10 animals each. In Group A smooth titanium, in Group B grit blasted titanium, in Group C HA-coated titanium, in Group D trabecular metal and in group E cancellous titanium rods were implanted in the right proximal tibia. Four weeks later, 1 ml of inoculum of a standardised CA-MRSA strain (3 × 108 cfu/ml) was injected through a femoral artery catheter (groups B, C, D, E) while in group A, 1 ml of sterile saline was injected in a similar way (control group). Subjects were killed 8 weeks after the initial procedure and 3 samples of each tibial specimen were subjected to conventional cultures and PCR studies. RESULTS The number of the specimens (conventional cultures and PCR studies) contaminated by the standardized pathogen was as follows: Group A: 0/10, Group B: 7/10, Group C: 6/10, Group D; 5/10 and Group E: 5/10. Comparing the number of colony form units isolated from the implant samples, Group B (GB titanium) showed statistically significantly higher values (Mann-Whitney test) compared to Group C (p = 0.044), Group D (p = 0.040) and Group E (p = 0.038). Local active infection was observed in 6 animals: 3 in Group B; 1 in Group C, 1 in Group D, and 1 in Group E. CONCLUSIONS Modern cementless implants (trabecular metal and cancellous titanium) showed a lower risk of implant contamination and late clinical haematogenous infection.
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Affiliation(s)
- George Komnos
- Orthopaedic Department, School of Health Sciences, Faculty of Medicine of University of Thessalia, University General Hospital, Larissa, Greece
| | - Konstantinos Banios
- Orthopaedic Department, School of Health Sciences, Faculty of Medicine of University of Thessalia, University General Hospital, Larissa, Greece
| | | | | | - Efthimia Petinaki
- Microbiology Department, School of Health Sciences, Faculty of Medicine of University of Thessalia, University General Hospital, Larissa, Greece
| | - Styliani Sarrou
- Microbiology Department, School of Health Sciences, Faculty of Medicine of University of Thessalia, University General Hospital, Larissa, Greece
| | - Elias Zintzaras
- Department of Biostatistics and Clinical Bioinformatics, School of Health Sciences, Faculty of Medicine of University of Thessalia, University General Hospital, Larissa, Greece
| | - Theofilos Karachalios
- Orthopaedic Department, School of Health Sciences, Faculty of Medicine of University of Thessalia, University General Hospital, Larissa, Greece
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Katsarou EI, Chatzopoulos DC, Giannoulis T, Ioannidi KS, Katsafadou AI, Kontou PI, Lianou DT, Mamuris Z, Mavrogianni VS, Michael CK, Papadopoulos E, Petinaki E, Sarrou S, Vasileiou NGC, Fthenakis GC. MLST-Based Analysis and Antimicrobial Resistance of Staphylococcus epidermidis from Cases of Sheep Mastitis in Greece. Biology (Basel) 2021; 10:biology10030170. [PMID: 33668332 PMCID: PMC7996216 DOI: 10.3390/biology10030170] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 02/19/2021] [Accepted: 02/21/2021] [Indexed: 12/17/2022]
Abstract
Staphylococcus epidermidis is an important causal agent of ovine mastitis. A literature search indicated a lack of systematic studies of causal agents of the infection by using multi-locus sequence typing (MLST). The objectives were to analyse MLST-based data and evaluate the antimicrobial resistance of S. epidermidis isolates from ovine mastitis in Greece. The database included 1593 isolates from 46 countries: 1215 of human, 195 of environmental and 134 of animal origin, distributed into 949 sequence types (STs) and cumulatively with 450 alleles therein. Among mastitis isolates, bovine isolates were distributed into 36 different STs and ovine ones into 15 STs. The 33 isolates from ovine mastitis in Greece were in 15 different STs, 6 of these (ST677, ST678, ST700, ST 709, ST710, ST711) assigned for the first time; in addition, 5 alleles (65 for arcC, 59 for aroE, 56 and 57 for gtr and 48 for tpiA) were identified for the first time. The spanning tree of these isolates included 15 nodes and 14 edges (i.e., branches). Among these isolates, 19 showed resistance to antimicrobial agents (tetracycline, penicillin, fucidic adic, erythromycin, clindamycin, cefoxitin). Resistance-related genes (tetK, tetT, msrA, tetM, tetS, ermC, mecA) were detected. There was no association between STs and resistance to antimicrobial agents. Isolates with antimicrobial resistance were recovered more often from flocks where hand-milking was practised.
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Affiliation(s)
- Eleni I. Katsarou
- Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece; (E.I.K.); (D.C.C.); (K.S.I.); (A.I.K.); (D.T.L.); (V.S.M.); (C.K.M.)
| | - Dimitris C. Chatzopoulos
- Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece; (E.I.K.); (D.C.C.); (K.S.I.); (A.I.K.); (D.T.L.); (V.S.M.); (C.K.M.)
| | - Themis Giannoulis
- Faculty of Animal Science, University of Thessaly, 41110 Larissa, Greece; (T.G.); (N.G.C.V.)
| | - Katerina S. Ioannidi
- Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece; (E.I.K.); (D.C.C.); (K.S.I.); (A.I.K.); (D.T.L.); (V.S.M.); (C.K.M.)
| | - Angeliki I. Katsafadou
- Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece; (E.I.K.); (D.C.C.); (K.S.I.); (A.I.K.); (D.T.L.); (V.S.M.); (C.K.M.)
| | - Panagiota I. Kontou
- Department of Computer Science and Biomedical Informatics, University of Thessaly, 35131 Lamia, Greece;
| | - Daphne T. Lianou
- Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece; (E.I.K.); (D.C.C.); (K.S.I.); (A.I.K.); (D.T.L.); (V.S.M.); (C.K.M.)
| | - Zissis Mamuris
- Faculty of Biochemistry and Biotechnology, University of Thessaly, 41110 Larissa, Greece;
| | - Vasia S. Mavrogianni
- Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece; (E.I.K.); (D.C.C.); (K.S.I.); (A.I.K.); (D.T.L.); (V.S.M.); (C.K.M.)
| | - Charalambia K. Michael
- Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece; (E.I.K.); (D.C.C.); (K.S.I.); (A.I.K.); (D.T.L.); (V.S.M.); (C.K.M.)
| | - Elias Papadopoulos
- Laboratory of Parasitology and Parasitic Diseases, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Efthymia Petinaki
- University Hospital of Larissa, 41110 Larissa, Greece; (E.P.); (S.S.)
| | - Styliani Sarrou
- University Hospital of Larissa, 41110 Larissa, Greece; (E.P.); (S.S.)
| | - Natalia G. C. Vasileiou
- Faculty of Animal Science, University of Thessaly, 41110 Larissa, Greece; (T.G.); (N.G.C.V.)
| | - George C. Fthenakis
- Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece; (E.I.K.); (D.C.C.); (K.S.I.); (A.I.K.); (D.T.L.); (V.S.M.); (C.K.M.)
- Correspondence:
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Drougka E, Foka A, Giormezis N, Sergelidis D, Militsopoulou M, Jelastopulu E, Komodromos D, Sarrou S, Anastassiou ED, Petinaki E, Spiliopoulou I. Multidrug‐resistant enterotoxigenicStaphylococcus aureuslineages isolated from animals, their carcasses, the personnel, and the environment of an abattoir in Greece. J FOOD PROCESS PRES 2019. [DOI: 10.1111/jfpp.13961] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Eleanna Drougka
- Department of Microbiology, School of Medicine University of Patras Patras Greece
- National Reference Laboratory for Staphylococci University of Patras Patras Greece
| | - Antigoni Foka
- Department of Microbiology, School of Medicine University of Patras Patras Greece
- National Reference Laboratory for Staphylococci University of Patras Patras Greece
| | - Nikolaos Giormezis
- Department of Microbiology, School of Medicine University of Patras Patras Greece
| | - Daniel Sergelidis
- Department of Hygiene and Technology of Foods of Animal Origin, School of Veterinary Medicine Aristotle University of Thessaloniki Thessaloniki Greece
| | - Maria Militsopoulou
- Department of Microbiology, School of Medicine University of Patras Patras Greece
| | - Eleni Jelastopulu
- Department of Public Health, School of Medicine University of Patras Patras Greece
| | - Dimitrios Komodromos
- Department of Hygiene and Technology of Foods of Animal Origin, School of Veterinary Medicine Aristotle University of Thessaloniki Thessaloniki Greece
| | - Styliani Sarrou
- Department of Microbiology, School of Medicine University of Thessaly Larissa Greece
| | - Evangelos D. Anastassiou
- Department of Microbiology, School of Medicine University of Patras Patras Greece
- National Reference Laboratory for Staphylococci University of Patras Patras Greece
| | - Efthimia Petinaki
- Department of Microbiology, School of Medicine University of Thessaly Larissa Greece
| | - Iris Spiliopoulou
- Department of Microbiology, School of Medicine University of Patras Patras Greece
- National Reference Laboratory for Staphylococci University of Patras Patras Greece
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Vasileiou N, Chatzopoulos D, Gougoulis D, Sarrou S, Katsafadou A, Spyrou V, Mavrogianni V, Petinaki E, Fthenakis G. Slime-producing staphylococci as causal agents of subclinical mastitis in sheep. Vet Microbiol 2018; 224:93-99. [DOI: 10.1016/j.vetmic.2018.08.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 08/22/2018] [Accepted: 08/22/2018] [Indexed: 11/28/2022]
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Vasileiou NGC, Cripps PJ, Ioannidi KS, Chatzopoulos DC, Gougoulis DA, Sarrou S, Orfanou DC, Politis AP, Gonzalez-Valerio TC, Argyros S, Mavrogianni VS, Petinaki E, Fthenakis GC. Extensive countrywide field investigation of subclinical mastitis in sheep in Greece. J Dairy Sci 2018; 101:7297-7310. [PMID: 29859691 DOI: 10.3168/jds.2017-14075] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 04/02/2018] [Indexed: 11/19/2022]
Abstract
The objectives of this work were (1) to investigate prevalence of subclinical mastitis, (2) to identify etiological agents involved, and (3) to study factors potentially predisposing ewes to subclinical mastitis. Milk samples were collected from 2,198 ewes in 111 farms with a total population of 35,925 ewes, in all 13 administrative regions of Greece, for bacteriological and cytological examination. Prevalence of subclinical mastitis was 0.260. Main etiological agents were staphylococci (Staphylococcus aureus and coagulase-negative species), which accounted for 0.699 of all isolates recovered; prevalence of staphylococcal mastitis was 0.191. In a multivariable mixed-effects analysis, the primary factor found to be associated with increased prevalence of subclinical mastitis was the management system practiced in flocks (flocks under a semi-intensive system had the highest prevalence). Other factors that were included in the multivariable model were the stage of lactation period (ewes in the 2nd month postpartum showed the highest prevalence) and application of postmilking teat dipping. In contrast, measures taken at the end of a lactation period (e.g., intramammary administration of antimicrobial agents) were not found to have an effect on prevalence of subclinical mastitis. The results confirmed the significance of subclinical mastitis as a frequent problem of ewes, with staphylococci as the primary etiological agent. The findings confirm the multifactorial nature of subclinical mastitis and indicate that its control should rely on many approaches.
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Affiliation(s)
- N G C Vasileiou
- Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece
| | - P J Cripps
- Institute of Veterinary Science, University of Liverpool, Neston, South Wirral, CH64 7TE, United Kingdom
| | - K S Ioannidi
- Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece
| | - D C Chatzopoulos
- Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece
| | | | - S Sarrou
- University Hospital of Larissa, 41110 Larissa, Greece
| | - D C Orfanou
- Veterinary Diagnostic Laboratory of Rhodes, Hellenic Ministry of Rural Development and Food, 85100 Rhodes, Greece
| | - A P Politis
- Politis Veterinary Center, 26500 Ovria Ahaias, Greece
| | | | - S Argyros
- Laboratorios HIPRA S.A., 17170 Amer (Girona), Spain
| | - V S Mavrogianni
- Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece
| | - E Petinaki
- University Hospital of Larissa, 41110 Larissa, Greece
| | - G C Fthenakis
- Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece.
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9
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Sarrou S, Skoulakis C, Hajiioannou J, Petinaki E, Bizakis I. Brucella Melitensis As Causative Agent for Neck Abscess in an Endemic Area. Balkan Med J 2017; 34:78-80. [PMID: 28251029 PMCID: PMC5322519 DOI: 10.4274/balkanmedj.2015.1143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 01/14/2016] [Indexed: 12/01/2022] Open
Abstract
Background: Brucellosis, a zoonotic disease, is very common in the Mediterranean basin and a major concern in livestock areas. We present a rare case of a Brucella-caused abscess in the neck of a stock-breeder in an endemic Greek area. Case Report: A 39-year-old male, living in the rural area of Thessaly, presented with a mass in the left area of his neck. Clinical examination and imaging tests revealed an abscess in the left sternocleidomastoid muscle. Sampling of the abscess by fine-needle aspiration yielded inflammatory fluid (17x103 cells/μL). Molecular sequencing (16S rRNA polymerase chain reaction) performed directly in the clinical sample identified the presence of Brucella melitensis within 24 hours after material sampling. The microorganism was isolated in agar media four days later. The Rose-Bengal test was negative, while the Brucellacapt test showed titer 1/320. Given the results obtained with these molecular techniques, the patient was offered treatment with streptomycin (1 g for 3 weeks) and oral doxycycline (100 mg twice daily for 6 weeks), concurrently. Conclusion: In areas endemic for brucellosis, the investigation of a patient with a neck abscess should include Brucella spp. among possible causative agents.
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Affiliation(s)
- Styliani Sarrou
- Department of Microbiology, University Hospital of Larissa, Larissa, Greece
| | | | - Jiannis Hajiioannou
- Department of Otorhinolaryngology, University Hospital of Larissa, Larissa, Greece
| | - Efi Petinaki
- Department of Microbiology, University Hospital of Larissa, Larissa, Greece
| | - Ioannis Bizakis
- Department of Otorhinolaryngology, University Hospital of Larissa, Larissa, Greece
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Papagiannitsis CC, Malli E, Florou Z, Sarrou S, Hrabak J, Mantzarlis K, Zakynthinos E, Petinaki E. Emergence of sequence type 11 Klebsiella pneumoniae coproducing NDM-1 and VIM-1 metallo-β-lactamases in a Greek hospital. Diagn Microbiol Infect Dis 2016; 87:295-297. [PMID: 27993422 DOI: 10.1016/j.diagmicrobio.2016.12.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 12/06/2016] [Accepted: 12/11/2016] [Indexed: 11/24/2022]
Abstract
Sequence type 11 Klebsiella pneumoniae, coproducing NDM-1 and VIM-1 metallo-β-lactamases, were isolated in a Greek hospital. blaNDM-1 was part of a Tn125 derivative, located on an ~90-kb plasmid similar to the NDM-1-encoding plasmid pB-3002cz. blaVIM-1 was located in an In-e541-like integron, carried on a multireplicon (IncA/C and IncR) plasmid of ~180kb.
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Affiliation(s)
- C C Papagiannitsis
- Department of Microbiology, University Hospital of Larissa, Larissa, Greece; Biomedical Center, Faculty of Medicine and University Hospital in Plzen, Charles University in Prague, Plzen, Czech Republic
| | - E Malli
- Department of Microbiology, University Hospital of Larissa, Larissa, Greece
| | - Z Florou
- Department of Microbiology, University Hospital of Larissa, Larissa, Greece
| | - S Sarrou
- Department of Microbiology, University Hospital of Larissa, Larissa, Greece
| | - J Hrabak
- Biomedical Center, Faculty of Medicine and University Hospital in Plzen, Charles University in Prague, Plzen, Czech Republic
| | - K Mantzarlis
- Department of Critical Care, Medical School, University of Thessaly, Larissa, Greece
| | - E Zakynthinos
- Department of Critical Care, Medical School, University of Thessaly, Larissa, Greece
| | - E Petinaki
- Department of Microbiology, University Hospital of Larissa, Larissa, Greece.
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Papadimitriou-Olivgeris M, Filippidou S, Kolonitsiou F, Drougka E, Koutsileou K, Fligou F, Dodou V, Sarrou S, Marangos M, Vantarakis A, Anastassiou ED, Petinaki E, Spiliopoulou I. Pitfalls in the identification of Enterococcus species and the detection of vanA and vanB genes. Lett Appl Microbiol 2016; 63:189-95. [PMID: 27367648 DOI: 10.1111/lam.12610] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 06/25/2016] [Accepted: 06/27/2016] [Indexed: 11/27/2022]
Abstract
UNLABELLED The aims were to assess the performance of Vitek 2 in identifying enterococcal species and the implementation of GeneXpert(®) vanA/vanB PCR for the detection of vancomycin-resistant enterococci (VRE). Gram-positive cocci from clinical and environmental specimens (n = 431) suspicious of being enterococci by conventional methods were evaluated by Vitek 2. This system identified 296 Enterococcus faecium, 87 Enterococcus faecalis, 10 Enterococcus villorum, 9 Enterococcus gallinarum, 9 Enterococcus durans, 5 Enterococcus casseliflavus, 1 Enterococcus spp. and 14 isolates as Non-Enterococcus. All strains were submitted to pulsed field gel electrophoresis (PFGE) analysis showing 64 banding patterns. Representative strains from each banding pattern were further characterized to species level by 16S rDNA sequencing. The misidentification rate by Vitek 2 to species level among 429 molecularly identified enterococci was 6% (26 isolates). Additionally, 372 rectal swabs were obtained from critically ill patients. They were evaluated for the presence of VRE by ChromID VRE combined with in-house PCR vs GeneXpert(®) . GeneXpert(®) showed high (>92%) sensitivity, specificity, accuracy for vanA-positive Enterococcus detection, as well as, sensitivity and specificity for vanB-positive strains. Positive predictive value for detection of vanB-positive enterococci by GeneXpert(®) vanA/vanB was low (30%). GeneXpert(®) showed the same efficacy as ChromID VRE in detecting vanA-positive enterococci, but lower for vanB-gene detection. SIGNIFICANCE AND IMPACT OF THE STUDY The study shows that even though the performance of Vitek 2 Advanced Expert System was good in identifying enterococci to species level, it is important to verify results by a molecular method when phenotypic findings are discordant with epidemiologic patterns. Furthermore, GeneXpert(®) vanA/vanB PCR and ChromID VRE combined with in-house PCR were applied in rectal samples for the detection of VRE colonization among critically ill patients. GeneXpert(®) showed an excellent performance in detecting vanA-positive enterococci, but false-positive results for vanB-gene detection render its application problematic in departments with high incidence of vanB-positive enterococci.
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Affiliation(s)
| | - S Filippidou
- Environmental Microbiology Unit, Department of Hygiene, School of Medicine, University of Patras, Patras, Greece
| | - F Kolonitsiou
- Department of Microbiology, School of Medicine, University of Patras, Patras, Greece
| | - E Drougka
- Department of Microbiology, School of Medicine, University of Patras, Patras, Greece
| | - K Koutsileou
- Department of Anaesthesiology and Intensive Care Medicine, School of Medicine, University of Patras, Patras, Greece
| | - F Fligou
- Department of Anaesthesiology and Intensive Care Medicine, School of Medicine, University of Patras, Patras, Greece
| | - V Dodou
- Intensive Care Unit, General Hospital 'Saint Andrew', Patras, Greece
| | - S Sarrou
- Department of Microbiology, School of Medicine, University of Thessalia, Larissa, Greece
| | - M Marangos
- Division of Infectious Diseases, School of Medicine, University of Patras, Patras, Greece
| | - A Vantarakis
- Environmental Microbiology Unit, Department of Hygiene, School of Medicine, University of Patras, Patras, Greece
| | - E D Anastassiou
- Department of Microbiology, School of Medicine, University of Patras, Patras, Greece
| | - E Petinaki
- Department of Microbiology, School of Medicine, University of Thessalia, Larissa, Greece
| | - I Spiliopoulou
- Department of Microbiology, School of Medicine, University of Patras, Patras, Greece
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12
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Drougka E, Foka A, Koutinas CK, Jelastopulu E, Giormezis N, Farmaki O, Sarrou S, Anastassiou ED, Petinaki E, Spiliopoulou I. Interspecies spread of Staphylococcus aureus clones among companion animals and human close contacts in a veterinary teaching hospital. A cross-sectional study in Greece. Prev Vet Med 2016; 126:190-8. [PMID: 26948298 DOI: 10.1016/j.prevetmed.2016.02.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 01/25/2016] [Accepted: 02/19/2016] [Indexed: 11/19/2022]
Abstract
Staphylococcus aureus and methicillin-resistant S. aureus (MRSA) prevalence among companion animals and veterinary personnel (VP) was investigated. Strains' molecular characteristics were evaluated in order to assess S. aureus transmission. Specimens (224) from colonized and infected sites of 102 animals (92 dogs, 10 cats) and 18 VP were collected during 2012 and 2013. Antibiotic susceptibility was performed by the disk diffusion method and Etest. mecA, mecC, tst (toxic shock syndrome toxin) and lukF/lukS-PV (Panton-Valentine leukocidin, PVL) genes were investigated by PCR. Genotypes were identified by Multi Locus Sequence Typing (MLST), Staphylococcal Cassette Chromosome mec (SCCmec), accessory gene regulator group (agr), spa and Pulsed Field Gel Electrophoresis (PFGE). S. aureus prevalence among pets and VP was 36.3% (37/102) and 38.9% (7/18), respectively. Younger companion animals, those living in rural areas, having a disease upon admission or Coagulase-negative staphylococci co-carriage showed significantly higher prevalence of S. aureus isolation (p<0.05). Twenty-six pets and five VP carried PVL-positive S. aureus. In total, 60 S. aureus strains were recovered (53 from pets, seven from VP) of which 16 were MRSA (26.7%), 12 mecA- and four mecC-positive. MRSA showed higher resistance rates against other antimicrobials as compared to methicillin-susceptible ones. Strains were classified by MLST in 13 STs, with the predominance of ST80 and ST15. In MRSA, SCCmec types II, IV and XI were identified. The most frequent spa types were t5559 and t7558. Fifty-six strains were classified into 15 PFGE types. Comparison of genetic markers shows that identical or very similar strains disseminate among animals and VP. Companion animals harbor PVL-positive clones constituting a possible source for transmission to humans.
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Affiliation(s)
- Eleanna Drougka
- Department of Microbiology, School of Medicine, University of Patras, Rion, 26504 Patras, Greece; National Reference Laboratory for Staphylococci, University of Patras, Rion, 26504 Patras, Greece
| | - Antigoni Foka
- Department of Microbiology, School of Medicine, University of Patras, Rion, 26504 Patras, Greece; National Reference Laboratory for Staphylococci, University of Patras, Rion, 26504 Patras, Greece
| | - Christos K Koutinas
- Companion Animal Clinic, School of Veterinary Medicine, Aristotle University of Thessaloniki, St. Voutyra 11, 546 27 Thessaloniki, Greece
| | - Eleni Jelastopulu
- Department of Public Health, School of Medicine, University of Patras, Rion, 26504 Patras, Greece
| | - Nikolaos Giormezis
- Department of Microbiology, School of Medicine, University of Patras, Rion, 26504 Patras, Greece; National Reference Laboratory for Staphylococci, University of Patras, Rion, 26504 Patras, Greece
| | - Ourania Farmaki
- Companion Animal Clinic, School of Veterinary Medicine, Aristotle University of Thessaloniki, St. Voutyra 11, 546 27 Thessaloniki, Greece
| | - Styliani Sarrou
- Department of Microbiology, School of Medicine, University of Thessalia, Biopolis, 41222 Larissa, Greece
| | - Evangelos D Anastassiou
- Department of Microbiology, School of Medicine, University of Patras, Rion, 26504 Patras, Greece; National Reference Laboratory for Staphylococci, University of Patras, Rion, 26504 Patras, Greece
| | - Efthimia Petinaki
- Department of Microbiology, School of Medicine, University of Thessalia, Biopolis, 41222 Larissa, Greece
| | - Iris Spiliopoulou
- Department of Microbiology, School of Medicine, University of Patras, Rion, 26504 Patras, Greece; National Reference Laboratory for Staphylococci, University of Patras, Rion, 26504 Patras, Greece.
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Oikonomou O, Sarrou S, Papagiannitsis CC, Georgiadou S, Mantzarlis K, Zakynthinos E, Dalekos GN, Petinaki E. Rapid dissemination of colistin and carbapenem resistant Acinetobacter baumannii in Central Greece: mechanisms of resistance, molecular identification and epidemiological data. BMC Infect Dis 2015; 15:559. [PMID: 26653099 PMCID: PMC4675053 DOI: 10.1186/s12879-015-1297-x] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Accepted: 11/27/2015] [Indexed: 12/17/2022] Open
Abstract
Background Colistin-resistant/carbapenem-resistant Acinetobacter baumannii is a significant challenge for antibiotic treatment and infection control policies. Since 2012, in Central Greece an increase of colistin/pan- resistant A. baumannii has occurred, indicating the need for further analysis. Methods A total of 86 colistin-resistant/carbapenem-resistant out of 1228 A. baumannii clinical isolates, consecutively collected between 2012 and 2014 in a tertiary Greek hospital of Central Greece, as well as one environmental isolate from surveillance cultures were studied. Molecular typing and mechanisms of resistance to colistin and to carbapenems were assessed, whereas, epidemiological and clinical data of the patients were reviewed. Results During the study period, the rate of colistin resistance gradually increased and reached 21.1 % in 2014. All colistin-resistant/carbapenem-resistant A. baumannii belonged to 3LST ST101 clone that corresponds to the international clonal lineage II. Carbapenem resistance was associated with the presence of blaoxa-23-like, while resistance to colistin probably correlated with G54E and R109H amino acid substitutions in PmrA and PmrC, respectively. Conclusions Epidemiological data of the patients indicated that the first detection of colistin-resistant/carbapenem-resistant ST101 clone in the University Hospital of Larissa (UHL) was associated with a patient who previously had received colistin, while, the movement of the infected patients into the hospital probably resulted to its spread.
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Affiliation(s)
- O Oikonomou
- Department of Microbiology, University Hospital of Larissa, Larissa, Greece
| | - S Sarrou
- Department of Microbiology, University Hospital of Larissa, Larissa, Greece
| | - C C Papagiannitsis
- Department of Microbiology, University Hospital of Larissa, Larissa, Greece.,Faculty of Medicine and University Hospital in Plzen, Charles University in Prague, Plzen, Czech Republic
| | - S Georgiadou
- Department of Medicine, Medical School, University of Thessaly, Larissa, Greece
| | - K Mantzarlis
- Department of Critical Care, Medical School, University of Thessaly, Larissa, Greece
| | - E Zakynthinos
- Department of Critical Care, Medical School, University of Thessaly, Larissa, Greece
| | - G N Dalekos
- Department of Medicine, Medical School, University of Thessaly, Larissa, Greece
| | - E Petinaki
- Department of Microbiology, University Hospital of Larissa, Larissa, Greece. .,Department of Microbiology, Medical School, University of Thessaly, Larissa, Greece.
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Giormezis N, Papakonstantinou K, Kolonitsiou F, Drougka E, Foka A, Sarrou S, D. Anastassiou E, Petinaki E, Spiliopoulou I. Biofilm synthesis and its relationship with genetic characteristics in clinical methicillin-resistant staphylococci. AIMS Bioengineering 2015. [DOI: 10.3934/bioeng.2015.4.375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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