[PDF] Top 20 Assessing Google flu trends performance in the United States during the 2009 influenza virus A (H1N1) pandemic.

... such pandemic-specific queries are not included in GFT models because they do not correlate well with ILINet data in previous seasons, nor are they necessarily expected to correlate with future ... See full document

... to influenza, ...variability in the specificity of ILI for influenza disease, with the proportion of subjects testing positive for influenza ranging from 20% to 70% of those ... See full document

... increases in ILI because GFT estimates (%GFT) are available online 1–2 weeks before %ILINet is reported ...However, during the past five years, GFT has incorrectly estimated %ILINet twice, at ... See full document

... of influenza A (H1N1) virus infection required ...Of the 64 hospitalized patients, ...of the article cited above, in which most of the hospitalized patients were in ... See full document

... to the lack of genetic reassortment and similar tree topologies of each gene segments, concatenated phylogenetic tree was justified to be used for evolutionary analysis of pH1N1 influenza virus to ... See full document

... of 2009, a period in which the incidence of 2009 pandemic influenza A (H1N1) virus infection was highest in the Serra Gaúcha region, located in ... See full document

... appreciate the valuable comments made by Pro- fessor Viroj Wiwanitkit about our work and the op- portunity to further discuss the Google Flu Trends model (GFT) as well as ... See full document

... from the first day of admission till (i) negative twice for throat swab ...elevations in total white blood cell count and percentage of neutrophils; (ii) high body temperature; and (iii) purulent ... See full document

... del virus de sarampión de siete cadenas de transmisión. Las cepas de virus aislados de casos de Nueva York, Vermont, Cali- fornia, Massachusetts y Washington coincidían con los genotipos virales de los ... See full document

... on the pan- influenza segment 7 assay developed by Spackman et ...detect the presence of any influenza A RNA within the samples ...[17]. The primer, probe concentrations and RNA ... See full document

... within the confidence interval of that estimate [4]. The difference is attributed to additional years of data including removal of duplicate case reports between states, and several improvements ... See full document

... of influenza A viruses is not ...mutations in viral proteins, including envelope hemagglutinin (HA) and neuraminidase (NA) glycoproteins [1], nonstructural proteins NS1 [2,3] and PB1-F2 [4], and the ... See full document

... described in Table 1 were isolated during the second wave and exhibited substitution S203T, which has potential to contribute to antigenic drift as it is located within antigenic site Ca, although ... See full document

... for the association between negative AH9 and epidemic onset (Figure ...effect in which large negative AH9 develop about 2 wk prior to onset as defined by SIRS model infection rates (Figure ...4). The ... See full document

... Of the 2 HIV-positive patients in the study, the patient who was not on antiretroviral therapy (ART) had detectable pH1N1 virus RNA for 16 days, much longer than the median ... See full document

... discuss the history. The work of Barker and collaborators, on in utero exposures, is a special case of the larger ...began in the 1980s ...own. The 1918 influenza ... See full document

... tested in this study were collected from 5 groups of subjects. The first group comprised 80 patients with 2009 pandemic influenza as confirmed by real time reverse transcrip- tion- ... See full document

... In the United States, more than 90% of chicken meat is produced in the southeastern states, and most egg production resides in the eastern half of the ... See full document

... to influenza are good indicators of influenza ...for influenza information is actually sick, but a search spike probably indicates excess patients with symptoms of ILI searching online for ... See full document

... created in EPI Data software (version 3.02). The survey questionnaires were inputted twice into the database and checked for ...USA). The seroprevalence was defined as the percentage of ... See full document