LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 19

Search options

  1. Article ; Online: Letter to the editor: outbreaks caused by parvovirus B19.

    Kelly, Heath / Leydon, Jennie

    Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin

    2005  Volume 10, Issue 9, Page(s) E1–2; author reply E5–6

    MeSH term(s) Disease Outbreaks ; Europe/epidemiology ; Humans ; Parvoviridae Infections/epidemiology ; Parvovirus B19, Human
    Language English
    Publishing date 2005-09-30
    Publishing country Sweden
    Document type Comment ; Letter
    ZDB-ID 1338803-4
    ISSN 1560-7917 ; 1025-496X
    ISSN (online) 1560-7917
    ISSN 1025-496X
    DOI 10.2807/esm.10.09.00565-en
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: An outbreak investigation of congenital rubella syndrome in Solomon Islands, 2013.

    Durski, Kara N / Tituli, Carol / Ogaoga, Divi / Musto, Jennie / Joshua, Cynthia / Dofai, Alfred / Leydon, Jennie / Nilles, Eric

    Western Pacific surveillance and response journal : WPSAR

    2016  Volume 7, Issue 1, Page(s) 10–13

    Abstract: Introduction: During May 2012, a rubella outbreak was declared in Solomon Islands. A suspected case of congenital rubella syndrome (CRS) was reported from one hospital 11 months later in 2013. This report describes the subsequent CRS investigation, ... ...

    Abstract Introduction: During May 2012, a rubella outbreak was declared in Solomon Islands. A suspected case of congenital rubella syndrome (CRS) was reported from one hospital 11 months later in 2013. This report describes the subsequent CRS investigation, findings and measures implemented.
    Methods: Prospective CRS surveillance was conducted at the newborn nursery, paediatric and post-natal wards, and the paediatric cardiology and ophthalmology clinics of the study hospital from April to July 2013. Retrospective case finding by reviewing medical records was also undertaken to identify additional cases born between January and March 2013 for the same wards and clinics. Cases were identified using established World Health Organization case definitions for CRS.
    Results: A total of 13 CRS cases were identified, including two laboratory-confirmed, four clinically confirmed and seven suspected cases. Five CRS cases were retrospectively identified, including four suspected and one clinically confirmed case. There was no geospatial clustering of residences. The mothers of the cases were aged between 20 and 36 years. Three of the six mothers available for interview recalled an acute illness with rash during the first trimester of pregnancy.
    Discussion: Additional CRS cases not captured in this investigation are likely. Caring for CRS cases is a challenge in resource-poor settings. Rubella vaccination is safe and effective and can prevent the serious consequences of CRS. Well planned and funded vaccination activities can prevent future CRS cases.
    MeSH term(s) Disease Outbreaks ; Female ; Humans ; Incidence ; Infant ; Infant, Newborn ; Male ; Melanesia/epidemiology ; Population Surveillance ; Prospective Studies ; Rubella Syndrome, Congenital/epidemiology
    Language English
    Publishing date 2016-02-03
    Publishing country Philippines
    Document type Journal Article
    ZDB-ID 2592503-9
    ISSN 2094-7313 ; 2094-7313
    ISSN (online) 2094-7313
    ISSN 2094-7313
    DOI 10.5365/WPSAR.2015.6.4.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Evaluation of the World Health Organization global measles and rubella quality assurance program, 2001-2008.

    Stambos, Vicki / Leydon, Jennie / Riddell, Michaela / Clothier, Hazel / Catton, Mike / Featherstone, David / Kelly, Heath

    The Journal of infectious diseases

    2011  Volume 204 Suppl 1, Page(s) S499–505

    Abstract: Background: During 2001-2008, the Victorian Infectious Diseases Reference Laboratory (VIDRL) prepared and provided a measles and rubella proficiency test panel for distribution to the World Health Organization (WHO) measles and rubella network ... ...

    Abstract Background: During 2001-2008, the Victorian Infectious Diseases Reference Laboratory (VIDRL) prepared and provided a measles and rubella proficiency test panel for distribution to the World Health Organization (WHO) measles and rubella network laboratories as part of their annual laboratory accreditation assessment.
    Methods: Panel test results were forwarded to VIDRL, and results from 8 consecutive years were analyzed. We assessed the type of assays used and results achieved on the basis of the positive and negative interpretation of submitted results, by year and WHO region, for measles and rubella.
    Results: Over time, there has been a noticeable increase in laboratory and WHO regional participation. For all panels, the proportion of laboratories in all WHO regions using the WHO-validated Dade Behring assay for measles and rubella-specific IgM antibodies ranged from 35% to 100% and 59% to 100%, respectively. For all regions and years, the proportion of laboratories obtaining a pass score ranged from 87% to 100% for measles and 93% to 100% for rubella.
    Conclusions: During 2001-2008, a large proportion of laboratories worldwide achieved and maintained a pass score for both measles and rubella. Measles and rubella proficiency testing is regarded as a major achievement for the WHO measles and rubella laboratory program.
    MeSH term(s) Clinical Laboratory Techniques/standards ; Communicable Disease Control/methods ; Data Collection ; Global Health ; International Cooperation ; Measles/diagnosis ; Measles/epidemiology ; Population Surveillance ; Program Evaluation ; Quality Assurance, Health Care/organization & administration ; Quality Assurance, Health Care/standards ; Rubella/diagnosis ; Rubella/epidemiology ; Surveys and Questionnaires ; Time Factors ; World Health Organization/organization & administration
    Language English
    Publishing date 2011-07
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 3019-3
    ISSN 1537-6613 ; 0022-1899
    ISSN (online) 1537-6613
    ISSN 0022-1899
    DOI 10.1093/infdis/jir128
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Residual susceptibility to measles among young adults in Victoria, Australia following a national targeted measles-mumps-rubella vaccination campaign

    Leydon Jennie A / Karapanagiotidis Theo / Gidding Heather F / Kelly Heath A / Riddell Michaela A

    BMC Public Health, Vol 7, Iss 1, p

    2007  Volume 99

    Abstract: Abstract Background Past measles immunisation policies in Australia have resulted in a cohort of young adults who have been inadequately vaccinated, but who also have low levels of naturally acquired immunity because immunisation programs have decreased ... ...

    Abstract Abstract Background Past measles immunisation policies in Australia have resulted in a cohort of young adults who have been inadequately vaccinated, but who also have low levels of naturally acquired immunity because immunisation programs have decreased the circulation of wild virus. A measles-mumps-rubella (MMR) immunisation campaign aimed at addressing this susceptibility to measles among young adults was conducted in Australia in 2001–2. By estimating age-specific immunity, we aimed to evaluate the success of this campaign in the state of Victoria. Methods We conducted serosurveys after the young adult MMR program at state and national levels to estimate immunity among young adults born between 1968–82. We compared results of the Victorian (state) surveys with the Victorian component of the national surveys and compared both surveys with surveys conducted before the campaign. We also reviewed all laboratory confirmed measles cases in Victoria between 2000–4. Results The Victorian state serosurveys indicated no significant change in immunity of the cohort following the young adult MMR campaign (83.9% immune pre and 85.5% immune post campaign) while the Victorian component of the national serosurvey indicated a significant decline in immunity (91.0% to 84.2%; p = 0.006). Both surveys indicated about 15% susceptibility to measles among young Victorian adults after the campaign. Measles outbreaks in Victoria between 2000–4 confirmed the susceptibility of young adults. Outbreaks involved a median of 2.5 cases with a median age of 24.5 years. Conclusion In Victoria, the young adult MMR program appears to have had no effect on residual susceptibility to measles among the 1968–82 birth cohort. Young adults in Victoria, as in other countries where past immunisation policies have left a residual susceptible cohort, represent a potential problem for the maintenance of measles elimination.
    Keywords Public aspects of medicine ; RA1-1270
    Subject code 333
    Language English
    Publishing date 2007-06-01T00:00:00Z
    Publisher BMC
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  5. Article: Development of a Real-Time PCR Assay To Detect Treponema pallidum in Clinical Specimens and Assessment of the Assay's Performance by Comparison with Serological Testing

    Leslie, David E / Azzato, Franca / Karapanagiotidis, Theo / Leydon, Jennie / Fyfe, Janet

    Journal of clinical microbiology JCM. 2007 Jan., v. 45, no. 1

    2007  

    Abstract: The incidence of infectious syphilis in men who have sex with men and human immunodeficiency virus-infected patients has increased steadily in Victoria, Australia, since 2002. A TaqMan real-time PCR assay targeting the polA gene of Treponema pallidum ( ... ...

    Abstract The incidence of infectious syphilis in men who have sex with men and human immunodeficiency virus-infected patients has increased steadily in Victoria, Australia, since 2002. A TaqMan real-time PCR assay targeting the polA gene of Treponema pallidum (TpPCR) was developed. The analytical sensitivity of the assay was estimated to be 1.75 target copies per reaction. Initially, the assay was used to test a variety of specimens (excluding blood) from 598 patients. Of the 660 tests performed, positive PCR results were obtained for 55 patients. TpPCR results were compared with serology results for 301 patients being investigated for early syphilis. Of these patients, 41 were positive by both TpPCR and serology, 246 were negative by both TpPCR and serology, 4 were TpPCR positive but negative by serology, and 10 were TpPCR negative but showed evidence of recent or active infection by serology. Directly compared with serology, TpPCR showed 95% agreement, with a sensitivity of 80.39% and a specificity of 98.40%. Potential factors leading to the discrepant results are discussed. Concurrent serology on 21 patients with TpPCR-positive primary syphilitic lesions demonstrated that a panel of current syphilis serological tests has high sensitivity for the detection of early syphilis. We found that TpPCR is a useful addition to serology for the diagnosis of infectious syphilis. Direct comparison with other T. pallidum PCR assays will be required to fully assess the limitations of the assay.
    Language English
    Dates of publication 2007-01
    Size p. 93-96.
    Publishing place American Society for Microbiology
    Document type Article
    ZDB-ID 390499-4
    ISSN 1098-660X ; 0095-1137
    ISSN (online) 1098-660X
    ISSN 0095-1137
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  6. Article: The mumps outbreak that wasn't.

    Guy, Rebecca / Leydon, Jennie / Andrews, Ross / Lambert, Stephen

    Australian and New Zealand journal of public health

    2002  Volume 26, Issue 2, Page(s) 180–181

    MeSH term(s) Adult ; Child ; Child, Preschool ; Diagnosis, Differential ; Disease Outbreaks ; Humans ; Immunoenzyme Techniques ; Infant ; Measles-Mumps-Rubella Vaccine/administration & dosage ; Middle Aged ; Mumps/diagnosis ; Mumps/epidemiology ; Mumps/prevention & control ; Population Surveillance ; Sensitivity and Specificity ; Victoria/epidemiology
    Chemical Substances Measles-Mumps-Rubella Vaccine
    Language English
    Publishing date 2002-01-28
    Publishing country Australia
    Document type Letter
    ZDB-ID 1323548-5
    ISSN 1326-0200
    ISSN 1326-0200
    DOI 10.1111/j.1467-842x.2002.tb00914.x
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article: Report on a workshop on the laboratory diagnosis of measles.

    Leydon, Jennie / Curley, Shannon / Karapanagiotidis, Theo / Stambos, Vicki / Kelly, Heath

    Pacific health dialog

    2005  Volume 12, Issue 2, Page(s) 159–163

    Abstract: The Western Pacific Region of the World Health Organization (WHO) has declared a goal of regional measles elimination with a target date of 2012. To facilitate this goal, and in order to increase the familiarity of staff from some Western Pacific ... ...

    Abstract The Western Pacific Region of the World Health Organization (WHO) has declared a goal of regional measles elimination with a target date of 2012. To facilitate this goal, and in order to increase the familiarity of staff from some Western Pacific national laboratories with the technique of enzyme immunoassay (EIA) for the detection of anti-measles IgM, a WHO sponsored workshop was held at the Victorian Infectious Diseases Reference Laboratory (VIDRL) in May 2005. The workshop included participants from national laboratories in Cambodia and Lao People's Democratic Republic, and from five Pacific Island countries, Fiji, French Polynesia, Guam, New Caledonia and Papua New Guinea. An observer from Guam also participated. In addition to increasing the workshop participants' familiarity with the Dade Behring Enzygnost Anti-Measles Virus/IgM assay by hands-on involvement, the participants learnt to use dried venous blood spots for measles diagnosis. All participants successfully completed the practical component of the workshop. The workshop also included informal seminars on troubleshooting problems in EIA, good laboratory practice, data management in the laboratory and transporting infectious and diagnostic material. The EIA measles IgM calculation worksheets and the seminar on good laboratory practice were considered to be particularly useful by the majority of participants. The workshop was considered a success in terms of equipping participants with the knowledge and capacity to perform accurate measles IgM testing for both serum and dried venous blood spots. It also provided an introduction to proficiency testing.
    MeSH term(s) Antibodies, Viral/blood ; Antibodies, Viral/isolation & purification ; Antibody Specificity ; Clinical Laboratory Techniques ; Education ; Humans ; Immunoenzyme Techniques/methods ; Measles/diagnosis ; Measles virus/immunology ; Medical Laboratory Personnel/education ; Pacific Islands
    Chemical Substances Antibodies, Viral
    Language English
    Publishing date 2005-09
    Publishing country New Zealand
    Document type Journal Article
    ZDB-ID 2582245-7
    ISSN 1015-7867
    ISSN 1015-7867
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article: Development of a real-time PCR assay to detect Treponema pallidum in clinical specimens and assessment of the assay's performance by comparison with serological testing.

    Leslie, David E / Azzato, Franca / Karapanagiotidis, Theo / Leydon, Jennie / Fyfe, Janet

    Journal of clinical microbiology

    2007  Volume 45, Issue 1, Page(s) 93–96

    Abstract: The incidence of infectious syphilis in men who have sex with men and human immunodeficiency virus-infected patients has increased steadily in Victoria, Australia, since 2002. A TaqMan real-time PCR assay targeting the polA gene of Treponema pallidum ( ... ...

    Abstract The incidence of infectious syphilis in men who have sex with men and human immunodeficiency virus-infected patients has increased steadily in Victoria, Australia, since 2002. A TaqMan real-time PCR assay targeting the polA gene of Treponema pallidum (TpPCR) was developed. The analytical sensitivity of the assay was estimated to be 1.75 target copies per reaction. Initially, the assay was used to test a variety of specimens (excluding blood) from 598 patients. Of the 660 tests performed, positive PCR results were obtained for 55 patients. TpPCR results were compared with serology results for 301 patients being investigated for early syphilis. Of these patients, 41 were positive by both TpPCR and serology, 246 were negative by both TpPCR and serology, 4 were TpPCR positive but negative by serology, and 10 were TpPCR negative but showed evidence of recent or active infection by serology. Directly compared with serology, TpPCR showed 95% agreement, with a sensitivity of 80.39% and a specificity of 98.40%. Potential factors leading to the discrepant results are discussed. Concurrent serology on 21 patients with TpPCR-positive primary syphilitic lesions demonstrated that a panel of current syphilis serological tests has high sensitivity for the detection of early syphilis. We found that TpPCR is a useful addition to serology for the diagnosis of infectious syphilis. Direct comparison with other T. pallidum PCR assays will be required to fully assess the limitations of the assay.
    MeSH term(s) Bacterial Proteins/genetics ; DNA, Bacterial/analysis ; DNA, Bacterial/isolation & purification ; Female ; Humans ; Male ; Polymerase Chain Reaction/methods ; Sensitivity and Specificity ; Syphilis/diagnosis ; Syphilis/microbiology ; Syphilis Serodiagnosis ; Taq Polymerase/metabolism ; Treponema pallidum/genetics ; Treponema pallidum/isolation & purification
    Chemical Substances Bacterial Proteins ; DNA, Bacterial ; Taq Polymerase (EC 2.7.7.-)
    Language English
    Publishing date 2007-01
    Publishing country United States
    Document type Comparative Study ; Evaluation Studies ; Journal Article
    ZDB-ID 390499-4
    ISSN 1098-660X ; 0095-1137
    ISSN (online) 1098-660X
    ISSN 0095-1137
    DOI 10.1128/JCM.01578-06
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Residual susceptibility to measles among young adults in Victoria, Australia following a national targeted measles-mumps-rubella vaccination campaign.

    Kelly, Heath A / Gidding, Heather F / Karapanagiotidis, Theo / Leydon, Jennie A / Riddell, Michaela A

    BMC public health

    2007  Volume 7, Page(s) 99

    Abstract: Background: Past measles immunisation policies in Australia have resulted in a cohort of young adults who have been inadequately vaccinated, but who also have low levels of naturally acquired immunity because immunisation programs have decreased the ... ...

    Abstract Background: Past measles immunisation policies in Australia have resulted in a cohort of young adults who have been inadequately vaccinated, but who also have low levels of naturally acquired immunity because immunisation programs have decreased the circulation of wild virus. A measles-mumps-rubella (MMR) immunisation campaign aimed at addressing this susceptibility to measles among young adults was conducted in Australia in 2001-2. By estimating age-specific immunity, we aimed to evaluate the success of this campaign in the state of Victoria.
    Methods: We conducted serosurveys after the young adult MMR program at state and national levels to estimate immunity among young adults born between 1968-82. We compared results of the Victorian (state) surveys with the Victorian component of the national surveys and compared both surveys with surveys conducted before the campaign. We also reviewed all laboratory confirmed measles cases in Victoria between 2000-4.
    Results: The Victorian state serosurveys indicated no significant change in immunity of the cohort following the young adult MMR campaign (83.9% immune pre and 85.5% immune post campaign) while the Victorian component of the national serosurvey indicated a significant decline in immunity (91.0% to 84.2%; p = 0.006). Both surveys indicated about 15% susceptibility to measles among young Victorian adults after the campaign. Measles outbreaks in Victoria between 2000-4 confirmed the susceptibility of young adults. Outbreaks involved a median of 2.5 cases with a median age of 24.5 years.
    Conclusion: In Victoria, the young adult MMR program appears to have had no effect on residual susceptibility to measles among the 1968-82 birth cohort. Young adults in Victoria, as in other countries where past immunisation policies have left a residual susceptible cohort, represent a potential problem for the maintenance of measles elimination.
    MeSH term(s) Adult ; Age Factors ; Antibodies, Viral/blood ; Cohort Studies ; Disease Susceptibility ; Health Policy ; Humans ; Immunity, Active ; Immunization Programs/standards ; Immunization Programs/utilization ; Immunoenzyme Techniques ; Measles/immunology ; Measles/prevention & control ; Measles virus/immunology ; Measles virus/pathogenicity ; Measles-Mumps-Rubella Vaccine/administration & dosage ; Measles-Mumps-Rubella Vaccine/supply & distribution ; Program Evaluation ; Seroepidemiologic Studies ; Victoria
    Chemical Substances Antibodies, Viral ; Measles-Mumps-Rubella Vaccine
    Language English
    Publishing date 2007-06-08
    Publishing country England
    Document type Journal Article
    ISSN 1471-2458
    ISSN (online) 1471-2458
    DOI 10.1186/1471-2458-7-99
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article: Dried venous blood samples for the detection and quantification of measles IgG using a commercial enzyme immunoassay.

    Riddell, Michaela A / Byrnes, Graham B / Leydon, Jennie A / Kelly, Heath A

    Bulletin of the World Health Organization

    2003  Volume 81, Issue 10, Page(s) 701–707

    Abstract: Objectives: To determine whether samples of dried venous blood (DVB) were an acceptable alternative to serum for detecting measles-specific IgG in a commercial enzyme immunoassay.: Methods: Paired samples of serum and DVB were collected from 98 ... ...

    Abstract Objectives: To determine whether samples of dried venous blood (DVB) were an acceptable alternative to serum for detecting measles-specific IgG in a commercial enzyme immunoassay.
    Methods: Paired samples of serum and DVB were collected from 98 suspected cases of measles and 1153 schoolchildren in Victoria, Australia. All samples were tested using the Dade Behring Enzygnost Anti-Measles-Virus/IgG immunoassay. DVB samples were eluted using either the sample buffer provided with the kit or 5% dry milk powder in phosphate-buffered saline-Tween 20.
    Findings: DVB samples eluted by sample buffer showed significantly better linear correlation to the serum samples than did DVB samples eluted in 5% dry milk in phosphate-buffered saline-Tween 20. To improve the comparability of serum and DVB samples an adjustment factor of 1.28 was applied to the optical density (OD) values of DVB. This adjustment also enabled quantification of the titre of measles IgG in mIU/ml directly from the OD value using the alpha calculation as specified by the kit protocol. For DVB samples stored for less than six months at 4 degrees C, the assay showed an overall sensitivity of 98.4% and a specificity of 97.2% compared with the results of serum testing.
    Conclusion: These results illustrate the potential for DVB samples to be widely used with the Dade Behring enzyme immunoassay system for determining the immunity of the individual and the population to the measles virus.
    MeSH term(s) Adolescent ; Blood Specimen Collection/methods ; Child ; Feasibility Studies ; Humans ; Immunoenzyme Techniques ; Immunoglobulin G/blood ; Measles/diagnosis ; Measles/epidemiology ; Measles/immunology ; Sensitivity and Specificity ; Seroepidemiologic Studies ; Victoria
    Chemical Substances Immunoglobulin G
    Language English
    Publishing date 2003
    Publishing country Switzerland
    Document type Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 80213-x
    ISSN 1564-0604 ; 0042-9686 ; 0366-4996 ; 0510-8659
    ISSN (online) 1564-0604
    ISSN 0042-9686 ; 0366-4996 ; 0510-8659
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top