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{"title"=>"Attack Rates Assessment of the 2009 Pandemic H1N1 Influenza A in Children and Their Contacts: A Systematic Review and Meta-Analysis", "type"=>"journal", "authors"=>[{"first_name"=>"Aharona", "last_name"=>"Glatman-Freedman", "scopus_author_id"=>"6701452194"}, {"first_name"=>"Ian", "last_name"=>"Portelli", "scopus_author_id"=>"21741470200"}, {"first_name"=>"Susan K.", "last_name"=>"Jacobs", "scopus_author_id"=>"8971182300"}, {"first_name"=>"Justin I.", "last_name"=>"Mathew", "scopus_author_id"=>"55989822800"}, {"first_name"=>"Jonathan E.", "last_name"=>"Slutzman", "scopus_author_id"=>"14067908900"}, {"first_name"=>"Lewis R.", "last_name"=>"Goldfrank", "scopus_author_id"=>"7006056467"}, {"first_name"=>"Silas W.", "last_name"=>"Smith", "scopus_author_id"=>"23091911200"}], "year"=>2012, "source"=>"PLoS ONE", "identifiers"=>{"pui"=>"366207254", "sgr"=>"84870580803", "issn"=>"19326203", "pmid"=>"23284603", "scopus"=>"2-s2.0-84870580803", "doi"=>"10.1371/journal.pone.0050228"}, "id"=>"02d82ac3-71d8-3a22-9c16-71243414a084", "abstract"=>"BACKGROUND: The recent H1N1 influenza A pandemic was marked by multiple reports of illness and hospitalization in children, suggesting that children may have played a major role in the propagation of the virus. A comprehensive detailed analysis of the attack rates among children as compared with their contacts in various settings is of great importance for understanding their unique role in influenza pandemics.\\n\\nMETHODOLOGY/PRINCIPAL FINDINGS: We searched MEDLINE (PubMed) and Embase for published studies reporting outbreak investigations with direct measurements of attack rates of the 2009 pandemic H1N1 influenza A among children, and quantified how these compare with those of their contacts. We identified 50 articles suitable for review, which reported school, household, travel and social events. The selected reports and our meta-analysis indicated that children had significantly higher attack rates as compared to adults, and that this phenomenon was observed for both virologically confirmed and clinical cases, in various settings and locations around the world. The review also provided insight into some characteristics of transmission between children and their contacts in the various settings.\\n\\nCONCLUSION/SIGNIFICANCE: The consistently higher attack rates of the 2009 pandemic H1N1 influenza A among children, as compared to adults, as well as the magnitude of the difference is important for understanding the contribution of children to disease burden, for implementation of mitigation strategies directed towards children, as well as more precise mathematical modeling and simulation of future influenza pandemics.", "link"=>"http://www.mendeley.com/research/attack-rates-assessment-2009-pandemic-h1n1-influenza-children-contacts-systematic-review-metaanalysi-3", "reader_count"=>25, "reader_count_by_academic_status"=>{"Professor > Associate Professor"=>1, "Researcher"=>5, "Student > Ph. D. Student"=>7, "Student > Postgraduate"=>1, "Student > Master"=>6, "Student > Bachelor"=>4, "Lecturer > Senior Lecturer"=>1}, "reader_count_by_user_role"=>{"Professor > Associate Professor"=>1, "Researcher"=>5, "Student > Ph. D. Student"=>7, "Student > Postgraduate"=>1, "Student > Master"=>6, "Student > Bachelor"=>4, "Lecturer > Senior Lecturer"=>1}, "reader_count_by_subject_area"=>{"Nursing and Health Professions"=>2, "Mathematics"=>4, "Agricultural and Biological Sciences"=>5, "Medicine and Dentistry"=>11, "Physics and Astronomy"=>1, "Social Sciences"=>1, "Immunology and Microbiology"=>1}, "reader_count_by_subdiscipline"=>{"Medicine and Dentistry"=>{"Medicine and Dentistry"=>11}, "Social Sciences"=>{"Social Sciences"=>1}, "Physics and Astronomy"=>{"Physics and Astronomy"=>1}, "Immunology and Microbiology"=>{"Immunology and Microbiology"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>5}, "Nursing and Health Professions"=>{"Nursing and Health Professions"=>2}, "Mathematics"=>{"Mathematics"=>4}}, "reader_count_by_country"=>{"United States"=>1}, "group_count"=>1}

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• http://doi.org/10.1097/INF.0000000000000627
• http://doi.org/10.1371/journal.pcbi.1006600
• http://doi.org/10.1097/PCC.0000000000000922
• http://doi.org/10.1186/s13104-015-1551-8
• http://doi.org/10.1016/j.jim.2014.03.023
• http://doi.org/10.1186/1471-2334-13-589
• http://doi.org/10.1097/INF.0000000000000462
• http://doi.org/10.1371/journal.pone.0150428
• http://doi.org/10.1016/j.jinf.2016.04.038
• http://doi.org/10.1186/s12889-018-5302-3
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• http://doi.org/10.1016/j.ajic.2015.01.032
• http://doi.org/10.1086/676882
• http://doi.org/10.1371/journal.pone.0122865
• http://doi.org/10.1111/irv.12547
• http://doi.org/10.1093/infdis/jiv107
• http://doi.org/10.1371/journal.pone.0127754
• http://doi.org/10.1016/j.meegid.2018.08.007
• http://doi.org/10.1093/infdis/jiu359
• http://doi.org/10.1080/14787210.2016.1227701
• http://doi.org/10.1371/journal.pone.0108485
• http://doi.org/10.1016/j.mbs.2014.11.006
• http://doi.org/10.1097/01.inf.0000437066.40840.c4
• http://doi.org/10.1016/j.jval.2016.05.005

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• {"id"=>"278298267140386817", "text"=>"We're proud to announce: Pandemic #H1N1 #InfluenzaA research supported by #NALFoundation grant, published in #PLOSONE http://t.co/mDjmBCeU", "created_at"=>"2012-12-11T00:40:52Z", "user"=>"NALFoundation", "user_name"=>"LightstoneFoundation", "user_profile_image"=>"http://a0.twimg.com/profile_images/435439828/NLF_normal.JPG"}

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• {"files"=>["https://ndownloader.figshare.com/files/532563"], "description"=>"<p>Graphic representation of laboratory confirmed attack rates relative risk (95% CI) in children versus adults in school outbreaks. (Top panel) Laboratory-confirmed attack rates. (Bottom panel) Clinical attack rates.</p>", "links"=>[], "tags"=>["rates", "2009", "pandemic", "h1n1", "influenza", "children", "adults"], "article_id"=>203050, "categories"=>["Medicine", "Infectious Diseases", "Virology", "Biotechnology"], "users"=>["Aharona Glatman-Freedman", "Ian Portelli", "Susan K. Jacobs", "Justin I. Mathew", "Jonathan E. Slutzman", "Lewis R. Goldfrank", "Silas W. Smith"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0050228.g002"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Relative_risk_of_attack_rates_of_the_2009_pandemic_H1N1_influenza_A_in_children_and_adults_during_school_outbreaks_/203050", "title"=>"Relative risk of attack rates of the 2009 pandemic H1N1 influenza A in children and adults during school outbreaks.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-19 19:21:19"}
• {"files"=>["https://ndownloader.figshare.com/files/532704"], "description"=>"<p>Graphic representation of secondary attack rates relative risk (95% CI) in children versus adults. (Top panel) Laboratory-confirmed secondary attack rates for laboratory confirmed contacts of laboratory confirmed index cases. (Bottom panel) Secondary attack rates for clinically diagnosed contacts (with ILI) of laboratory confirmed index cases. In studies marked with an asterisk (*), all contacts were laboratory tested for the presence of the 2009 pandemic H1N1 influenza A virus.</p>", "links"=>[], "tags"=>["rates", "2009", "pandemic", "h1n1", "influenza", "children", "adults", "outbreak"], "article_id"=>203190, "categories"=>["Medicine", "Infectious Diseases", "Virology", "Biotechnology"], "users"=>["Aharona Glatman-Freedman", "Ian Portelli", "Susan K. Jacobs", "Justin I. Mathew", "Jonathan E. Slutzman", "Lewis R. Goldfrank", "Silas W. Smith"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0050228.g003"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Relative_risk_of_secondary_attack_rates_of_the_2009_pandemic_H1N1_influenza_A_in_children_and_adults_for_household_outbreak_investigations_/203190", "title"=>"Relative risk of secondary attack rates of the 2009 pandemic H1N1 influenza A in children and adults for household outbreak investigations.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-19 19:22:12"}
• {"files"=>["https://ndownloader.figshare.com/files/532826"], "description"=>"*<p>At risk population - the number of individuals included in attack rate calculation.</p>&<p>contacts who did not use prophylaxis.</p>#<p>Virological confirmation was performed as follows:</p><p>For index cases: RT PCR for 76.7% of individuals and serology for 23.3% of individuals.</p><p>For contacts: Serology- 100% of individuals.</p>‡<p>115 contacts of 41 index cases.</p>&<p>clinical diagnosis in the context of school outbreak with virologically confirmed 2009 H1N1 influenza A cases.</p>∧<p>Diagnosed primarily with a rapid influenza A test with 242 of them confirmed by a pandemic (H1N1) PCR. The study was carried out during a time that the pandemic (H1N1) influenza A was the predominant influenza A virus circulating in Japan.</p>\n <p>This study includes data from the Ghani study <a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0050228#pone.0050228-Ghani1\" target=\"_blank\">[6]</a>.</p>\n <p>The index case was not the first sick case in most families.</p>", "links"=>[], "tags"=>["rates", "2009", "pandemic", "h1n1", "influenza"], "article_id"=>203314, "categories"=>["Medicine", "Infectious Diseases", "Virology", "Biotechnology"], "users"=>["Aharona Glatman-Freedman", "Ian Portelli", "Susan K. Jacobs", "Justin I. Mathew", "Jonathan E. Slutzman", "Lewis R. Goldfrank", "Silas W. Smith"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0050228.t003"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Secondary_attack_rates_SARs_of_the_2009_pandemic_H1N1_influenza_A_in_households_/203314", "title"=>"Secondary attack rates (SARs) of the 2009 pandemic H1N1 influenza A in households<b>.</b>", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-02-19 19:22:58"}
• {"files"=>["https://ndownloader.figshare.com/files/532879"], "description"=>"*<p>At risk population - the number of individuals included in attack rate calculation.</p>**<p>Clinical attack rate was included only when virologically confirmed cases were in the studied population.</p>#<p>Calculated/extrapolated based on data provided in the report.</p><p>NR – not reported.</p>", "links"=>[], "tags"=>["characteristics", "rates", "2009", "pandemic", "h1n1", "influenza", "students"], "article_id"=>203363, "categories"=>["Medicine", "Infectious Diseases", "Virology", "Biotechnology"], "users"=>["Aharona Glatman-Freedman", "Ian Portelli", "Susan K. Jacobs", "Justin I. Mathew", "Jonathan E. Slutzman", "Lewis R. Goldfrank", "Silas W. Smith"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0050228.t002"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_School_characteristics_and_attack_rates_of_the_2009_pandemic_H1N1_influenza_A_among_entire_school_students_and_staff_population_/203363", "title"=>"School characteristics and attack rates of the 2009 pandemic H1N1 influenza A among entire school students and staff population.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-02-19 19:23:12"}
• {"files"=>["https://ndownloader.figshare.com/files/532918"], "description"=>"*<p>All reports analyze the outcomes related to the same outbreak.</p>", "links"=>[], "tags"=>["pandemic", "h1n1", "influenza", "outbreak", "reports", "included", "systematic"], "article_id"=>203402, "categories"=>["Medicine", "Infectious Diseases", "Virology", "Biotechnology"], "users"=>["Aharona Glatman-Freedman", "Ian Portelli", "Susan K. Jacobs", "Justin I. Mathew", "Jonathan E. Slutzman", "Lewis R. Goldfrank", "Silas W. Smith"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0050228.t001"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_2009_Pandemic_H1N1_Influenza_A_outbreak_reports_included_in_the_systematic_review_/203402", "title"=>"2009 Pandemic H1N1 Influenza A outbreak reports included in the systematic review.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-02-19 19:23:26"}
• {"files"=>["https://ndownloader.figshare.com/files/532959"], "description"=>"<p>Age-specific secondary attack rates (SARs) of the 2009 pandemic H1N1 influenza A in households.</p>", "links"=>[], "tags"=>["rates", "2009", "pandemic", "h1n1", "influenza"], "article_id"=>203446, "categories"=>["Medicine", "Infectious Diseases", "Virology", "Biotechnology"], "users"=>["Aharona Glatman-Freedman", "Ian Portelli", "Susan K. Jacobs", "Justin I. Mathew", "Jonathan E. Slutzman", "Lewis R. Goldfrank", "Silas W. Smith"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0050228.t004"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Age_specific_secondary_attack_rates_SARs_of_the_2009_pandemic_H1N1_influenza_A_in_households_/203446", "title"=>"Age-specific secondary attack rates (SARs) of the 2009 pandemic H1N1 influenza A in households.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-02-19 19:23:40"}

PMC Usage Stats | Further Information

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• {"unique-ip"=>"15", "full-text"=>"12", "pdf"=>"9", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"3"}
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• {"unique-ip"=>"13", "full-text"=>"10", "pdf"=>"7", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"10"}
• {"unique-ip"=>"3", "full-text"=>"3", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"2"}
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• {"unique-ip"=>"9", "full-text"=>"8", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2015", "month"=>"11"}
• {"unique-ip"=>"6", "full-text"=>"4", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"12"}
• {"unique-ip"=>"4", "full-text"=>"4", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"1"}
• {"unique-ip"=>"6", "full-text"=>"4", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"3"}
• {"unique-ip"=>"3", "full-text"=>"3", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"4"}
• {"unique-ip"=>"9", "full-text"=>"9", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"5"}
• {"unique-ip"=>"4", "full-text"=>"4", "pdf"=>"0", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"6"}
• {"unique-ip"=>"10", "full-text"=>"10", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"7"}
• {"unique-ip"=>"6", "full-text"=>"7", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"8"}
• {"unique-ip"=>"4", "full-text"=>"7", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"9"}
• {"unique-ip"=>"5", "full-text"=>"5", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"10"}
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Relative Metric

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F1000Prime