National Center for Epidemiology
National Center for Epidemiology
Egyed L.,Veterinary Medical Research Institute |
Elo P.,Veterinary Medical Research Institute |
Sreter-Lancz Z.,Laboratory of Microbiology |
Szell Z.,Laboratory of Parasitology |
And 2 more authors.
Ticks and Tick-borne Diseases | Year: 2012
Ixodes ricinus is the most important tick species in Europe as it is most widely distributed and transmits the majority of tick-borne zoonotic pathogens. As limited data are available for Hungary, the aim of the present study was to investigate the seasonal timing of questing by . I. ricinus and the infection rate of this tick species with all major tick-borne zoonotic pathogens. Monthly collections of . I. ricinus were carried out over 3 consecutive years by dragging a blanket in 6 biotopes representing different areas of Hungary. Altogether, 1800 nymphs (300 per collection point) were screened as pooled samples (each of 5 specimens) by PCR-based methods for tick-borne pathogens. . I. ricinus larvae, nymphs, and adults had bimodal activity patterns with a major peak in the spring. As newly moulted ticks of all stages are thought to emerge in the autumn of each year, it appears that most newly emerged ticks delayed their questing until the following spring. The minimum prevalence of . Borrelia burgdorferi sensu lato was 2.5%. . Borr. afzelii, . Borr. burgdorferi sensu stricto, . Borr. garinii, . Borr. lusitaniae, and . Borr. valaisiana were identified by hybridization. The minimum infection rate with spotted fever group rickettsiae was 1.9%. . Rickettsia helvetica was identified in all biotopes. The minimum prevalence of . Anaplasma phagocytophilum, . Babesia divergens and . Bab. microti was low (0.3-0.5%). . Bartonella spp.-, . Francisella tularensis-, and TBE virus-specific amplification products were not detected. Relative to the results of comparable studies carried out in the Carpathian Basin, the prevalence of tick-borne pathogens was low in Hungary. This might be attributed to the climatic difference between the lowland areas of Hungary and submountain areas of the surrounding countries involved in the studies. © 2012 Elsevier GmbH.
Banyai K.,Hungarian Academy of Sciences |
Banyai K.,National Center for Epidemiology |
Laszlo B.,Hungarian Academy of Sciences |
Laszlo B.,Debrecen University |
And 5 more authors.
Vaccine | Year: 2012
Recently, two rotavirus vaccines have been recommended for routine immunization of infants worldwide. These vaccines proved efficacious during clinical trials and field use in both developing and developed countries, and appear to provide good protection against a range of rotavirus genotypes, including some that are not included in the vaccines. However, since conclusive data that the vaccines will protect against a wide variety of rotavirus strains are still lacking and since vaccines may exert some selection pressure, a detailed picture of global strain prevalence from the pre-rotavirus vaccine era is important to evaluate any potential changes in circulating strains observed after widespread introduction of rotavirus vaccines. Thus, we systematically reviewed rotavirus genotyping studies spanning a 12-year period from 1996 to 2007. In total, ∼110,000 strains were genotyped from 100 reporting countries. Five genotypes (G1-G4, and G9) accounted for 88% of all strains, although extensive geographic and temporal differences were observed. For example, the prevalence of G1 strains declined from 2000 onward, while G3 strains re-emerged, and G9 and G12 strains emerged during the same period. When crude strain prevalence data were weighted by region based on the region's contribution to global rotavirus mortality, the importance of genotypes G1 and G9 strains that were more prevalent in regions with low mortality was reduced and conversely the importance of G8 strains that were more prevalent in African settings with greater contribution to global rotavirus mortality was increased. This study provides the most comprehensive, up-to-date information on rotavirus strain surveillance in the pre-rotavirus vaccine era and will provide useful background to examine the impact of rotavirus vaccine introduction on future strain prevalence. © 2011 Elsevier Ltd.
Caini S.,National Center for Epidemiology |
Caini S.,Centers for Disease Control and Prevention |
Hajdu A.,National Center for Epidemiology |
Kurcz A.,National Center for Epidemiology |
Borocz K.,National Center for Epidemiology
Eurosurveillance | Year: 2013
Healthcare-associated infections caused by multidrug-resistant organisms are associated with prolonged medical care, worse outcome and costly therapies. In Hungary, hospital-acquired infections (HAIs) due to epidemiologically important multidrug-resistant organisms are notifiable by law since 2004. Overall, 6,845 case-patients (59.8% men; median age: 65 years) were notified in Hungary from 2005 to 2010. One third of case-patients died in hospital. The overall incidence of infections increased from 5.4 in 2005 to 14.7 per 100,000 patient-days in 2010. Meticillinresistant Staphylococcus aureus (MRSA) was the most frequently reported pathogen (52.2%), but while its incidence seemed to stabilise after 2007, notifications of multidrug-resistant Gram-negative organisms have significantly increased from 2005 to 2010. Surgical wound and bloodstream were the most frequently reported sites of infection. Although MRSA incidence has seemingly reached a plateau in recent years, actions aiming at reducing the burden of HAIs with special focus on Gram-negative multidrug-resistant organisms are needed in Hungary. Continuing promotion of antimicrobial stewardship, infection control methodologies, reinforced HAI surveillance among healthcare and infection control practitioners, and engagement of stakeholders, hospital managers and public health authorities to facilitate the implementation of existing guidelines and protocols are essential.
Cardini F.,Health and Social Agency of Emilia Romagna Region |
Lesi G.,Bologna Local Health Unit |
Lombardo F.,National Center for Epidemiology |
van der Sluijs C.,University of Western Sydney
BMC Women's Health | Year: 2010
Background: The present study describes Complementary and Alternative Medicine (CAM) use amongst Italian women transitioning through menopause. Popularity and perceived effectiveness of CAM treatments, use of pharmaceutical medications, characteristics of CAM users, the extent of communication between medical practitioners and women about their use of CAM, and variables associated with CAM use were also investigated.Methods: Women, aged 45-65 years attending Family Planning and Women's Health clinics or Menopause Centres in Bologna were invited to complete a voluntary, anonymous, self administered questionnaire, which was used in a previous study in Sydney. The questionnaire was translated and adapted for use amongst Italian women. Data on general demographic and health characteristics, menopause related symptoms and the use of CAM and pharmaceutical treatments during the previous 12 months were collected.Results: In total, 1,203 women completed the survey, of which 1,106 were included in the final sample. Of women who had symptoms linked with menopause and/or used remedies to alleviate symptoms, 33.5% reported to have used CAM. Among these, 23.5% had consulted one or more practitioners and 24% had used at least one CAM product.A roximately nine out of ten respondents reported medical practitioners did not seek information about their use of CAM; while one third of CAM users did not disclose the use of CAM to their physician. Nevertheless, medical practitioners were the most popular source of information. From the multivariate analysis, variables associated with CAM use were: professional employment, time since the last natural menses, use of CAM for conditions other than menopause, and presence of some severe symptoms.Conclusions: The relatively high prevalence of CAM use by women transitioning through menopause should encourage research initiatives into determining which CAM treatments are the safest and effective. The increasing and likely concomitant use of CAM with HRT and other pharmaceuticals underlines the need for the implementation of a surveillance system to report and monitor possible drug-herb adverse events. The discrepancy between women preferring to seek information about CAM from their medical doctor and the difficulties noted in communication between doctor and patient should encourage educational initiatives on CAM by health-care agencies and institutions. © 2010 Cardini et al; licensee BioMed Central Ltd.
Glatz K.,National Center for Epidemiology |
Toth A.,National Center for Epidemiology |
Paszti J.,National Center for Epidemiology
Clinical Microbiology and Infection | Year: 2011
The report concerns the molecular epidemiology, cyclohexane tolerance and Phe-Arg-β-naphtylamide (PAβN) susceptibility of multidrug-resistant Enterobacter cloacae isolates, with high-level fluoroquinolone resistance collected from healthcare facilities in a nationwide survey. A total of 113 multidrug-resistant E. cloacae isolates (recovered in 1997-2005) were subjected to disc diffusion tests, ERIC-PCR and XbaI PFGE. Representatives of the ERIC-types (n=67) were tested further with cyclohexane and PAβN, using ciprofloxacin as the substrate. Forty-four per cent of the isolates were derived from the urinary tract, 19% from the bloodstream, 17% from the respiratory tract, and 15% from wound infections. Four ERIC-types (A, B, C and D) were distinguished, but 109 isolates were found to belong to a single, epidemic ERIC type: A. PFGE results suggested that the epidemic-type isolates were of monoclonal origin. Forty-two patients were involved in four outbreaks caused by the epidemic-type strains. Eighty-one cases were found to be nosocomial. At least fourfold reduction in ciprofloxacin MICs was found in the presence of PAβN in 79% of representative isolates (representing types A, C and D); an eightfold or greater reduction in ciprofloxacin MICs in the presence of PAβN (PAβN+) was found in 37% of representative isolates, representing types A and C. Eighty-five per cent of the representative isolates were found to be cyclohexane-tolerant, representing types A, C and D. This is the first report of a wide distribution of cyclohexane-tolerant or PAβN+ strains of E. cloacae. These feature-indicators of adaptive mechanisms that help bacteria to survive in hospital wards may have contributed to the nationwide spread of type A strains. © 2010 The Authors. Clinical Microbiology and Infection © 2010 European Society of Clinical Microbiology and Infectious Diseases.
Kapusinszky B.,National Diagnostics |
Molnar Z.,National Center for Epidemiology |
Szomor K.N.,National Diagnostics |
Berencsi G.,National Diagnostics
FEMS Immunology and Medical Microbiology | Year: 2010
Hungarian children were immunized with monovalent oral poliovaccine (mOPV) delivered at 6-week intervals in the order Sabin 1, Sabin 3, Sabin 2, from 1959 until 1992. During that period, 90 cases of vaccine-associated paralytic poliomyelitis (VAPP) were reported, 52 of which were associated with Sabin 3-related virus (76% of VAPP cases with virologic data). Because of renewed interest in type 3 mOPV (mOPV3), molecular methods were used to reanalyze 18 of the Sabin 3-related isolates from 15 VAPP patients, confirming the original identification. All isolates had the U472C 5′-untranslated region (5′-UTR) substitution associated with reversion to neurovirulence, and from zero to seven nucleotide substitutions in the virus protein 1 (VP1) region. No evidence was found for prolonged mOPV3 replication in the VAPP patients or for spread of Sabin 3-related viruses beyond close vaccinee contacts. The VAPP diseases were prevented by a single dose of inactivated poliovirus vaccine from 1992 to 2006 in Hungary, as proved by continuous surveillance of acute flaccid paralysis. © 2009 Federation of European Microbiological Societies. Published by Blackwell Publishing Ltd.
Sarkadi J.,National Center for Epidemiology
Acta Microbiologica et Immunologica Hungarica | Year: 2013
Despite intensive efforts in recent decades to develop preventive or therapeutic vaccines against diseases caused by herpes simplex virus (HSV), or varicella-zoster virus (VZV), members of the Alpha herpes virinae subfamily of human herpes viruses,a safe and efficient vaccine has been approved for commercial development only against VZV. The VZV vaccine contains a live attenuated strain, OKA. It consists of amixture of at least 13 subpopulations of viruses, all with deletions, insertions or mutations in the genome; the most common mutations are observed in the open reading frame 62 (ORF62). Experience over more than 30 years in Japan, the USA and other countries where VZV vaccination is provided has demonstrated that the vaccine is safe and the effectiveness of two doses compared to unvaccinated children is 98-99%. When administered in a higher dose to stimulate the declining cell-mediated immunity, the same vaccine has been shown to reduce the incidence and severity of herpes zoster in immunocompetent individuals older than 60 years. Vaccination of immuno-compromised subjects with this VZV vaccine is problematic and various strategies need to be explored. Differences in the pathomechanisms of infection, latency and immune evasion of VZV and HSV, together with host genetic factors, may explain the availability of the successful VZV vaccine and the failures of the past HSV vaccine candidates.
Ganesh B.,Indian National Institute of Cholera and Enteric Diseases |
Banyai K.,Hungarian Academy of Sciences |
Banyai K.,National Center for Epidemiology |
Martella V.,University of Bari |
And 3 more authors.
Reviews in Medical Virology | Year: 2012
Picobirnaviruses (PBVs) are small, non-enveloped, bisegmented double-stranded RNA genomic viruses of vertebrate hosts. Since their discovery in the late 1980s in clinical specimens from outbreaks of acute gastroenteritis in children, significant efforts have been made to investigate the role of PBV in diarrheic diseases. PBV has been detected in sporadic episodes of diarrhea as sole pathogen or coinfection as well as in outbreaks of acute gastroenteritis and in immunocompromised patients with diarrhea. However, PBV is frequently detected in non-diarrheic healthy hosts, and prolonged shedding has been observed in some individuals. Of interest, similar patterns of PBV infection have also been observed in pigs and other animal hosts. The increasing amount of PBV sequence data gathered from molecular epidemiological studies has evidenced a great sequence diversity of PBVs in various hosts and environmental samples. Importantly, evidence has been found for genetic relatedness between human and animal PBV strains, suggesting extant crossing points in the ecology and evolution of heterologous PBV strains. At present, no cell culture and animal model exists for PBVs. Well-structured epidemiological studies are still the only alternative to demonstrate the potential etiological role of PBVs in acute gastroenteritis or other diseases. This review aims to analyze the public health aspects of PBV infection, especially its possible association with zoonosis. © 2012 John Wiley & Sons, Ltd.
Vajo Z.,Debrecen University |
Tamas F.,State Primary Care Center |
Sinka L.,State Primary Care Center |
Jankovics I.,National Center for Epidemiology
The Lancet | Year: 2010
Background: With the ongoing 2009 pandemic of influenza A H1N1, development of pandemic influenza vaccines has generated much interest. We investigated the safety and immunogenicity of a whole-virion, inactivated, adjuvanted pandemic H1N1 vaccine in adult and elderly volunteers, given without or simultaneously with the 2009-10 seasonal trivalent influenza vaccine. Methods: This prospective, randomised study was undertaken in two centres in Hungary. 355 participants, including 203 adults (18-60 years) and 152 elderly people (>60 years), were assigned by stratified randomisation to either 0·5 mL of the pandemic vaccine (Fluval P, a monovalent vaccine with 6 μg haemagglutinin per 0·5 mL content and aluminium phosphate gel adjuvant; n=178) or 0·5 mL of the pandemic vaccine and 0·5 mL of the seasonal trivalent vaccine (Fluval AB, a trivalent inactivated whole-virion influenza vaccine; n=177). All vaccinations were done by specific study personnel, who did not take part in the assessment of safety or immunogenicity. Co-primary objectives were safety and immunogenicity by haemagglutinin inhibition testing. All analyses were done according to a pre-established analysis plan. This study is registered with ClinicalTrials.gov, number NCT01010893. Findings: Two participants receiving the pandemic vaccine only (group 1) and one receiving pandemic and seasonal vaccines (group 2) were lost to follow-up. Participants in both groups developed antibody responses against the pandemic influenza A H1N1 virus (group 1: seroconversion for adults 74·3%, 95% CI 64-6-82·4 and for elderly people 61·3%, 49·1-72·4; group 2: 76·8%, 67·2-84·7 and 81·8%, 71·4-89·7, respectively). Single doses of 6 μg fulfilled European Union and US licensing criteria for interpandemic and pandemic influenza vaccines. Simultaneously, participants in group 2 developed the immune responses needed for licensing for all three seasonal strains in the seasonal vaccine for the 2009-10 season. All adverse events were rare, mild, and transient; the most frequent were pain at injection site (eight cases in group 1 vs 18 in group 2) and fatigue for 1-2 days after vaccination (three vs five cases). Interpretation: The present pandemic vaccine is safe and immunogenic in healthy adult and elderly patients, and needs low doses and only one injection to trigger immune responses to comply with licensing criteria. It can be safely co-administered with the 2009-10 seasonal influenza vaccine. Funding: Omninvest, Hungary. © 2010 Elsevier Ltd. All rights reserved.
Nogrady N.,National Center for Epidemiology |
Kiraly M.,National Center for Epidemiology |
Davies R.,Veterinary Laboratories Agency |
Nagy B.,Hungarian Academy of Sciences
International Journal of Food Microbiology | Year: 2012
The aim of the study was to investigate the potential spread of the previously described multidrug-resistant (MDR) Hungarian clone of Salmonella Infantis of broiler origin in Europe. Therefore, 76 strains isolated between 2004 and 2009 from raw meat and fecal samples of broiler origin in nine European countries - including Hungary - were examined by phage typing, antimicrobial resistance typing, pulsed-field gel electrophoresis (PFGE) profile and plasmid analysis. The strains could be divided into two large PFGE clusters with 92% similarity. Cluster A (n. = 39) contained 15 German, seven Italian, five British, five Polish isolates, one Austrian and one Hungarian isolate. Five Hungarian isolates that were isolated prior to the appearance of the MDR clone also belonged to this cluster. Strains of this cluster comprised seven pulsotypes and 14 different phage types and were mostly susceptible to the 12 antimicrobials tested. Cluster B (n. = 33) contained all but one of the recent Austrian (n. = 14) and of Hungarian (n. = 9), six Polish, one Italian and one German as well as the single Turkish and the Romanian strains, representing five pulsotypes. The strains of this cluster were mostly PT213, with MDR (nalidixic acid-streptomycin-sulphomamide-tetracycline), and the carriage of the same class 1 integron located on a large plasmid (> 168. kb) characteristic of the current predominant Hungarian clone. The results suggest that two large related clusters (A and B) of S. Infantis isolates can be found in various European countries, of which Austrian and Polish MDR clones of cluster B are identical with, or closely related to, the dominant Hungarian clone. The emergence of a few dominant MDR S. Infantis clones in broilers reported here, raises the possibility that further dissemination of such clones in broilers and in broiler meat may occur and represent a potential threat to public health in Europe. © 2012 Elsevier B.V.