scholarly journals United States Healthcare Costs for Illness Attributable to Seasonal Influenza Type A and Type B During 2001/2002–2008/2009

2015 ◽  
Vol 2 (suppl_1) ◽  
Author(s):  
Songkai Yan ◽  
Derek Weycker ◽  
Stephania Sokolowski ◽  
Girishanthy Krishnarajah
Keyword(s):  
United States ◽  
Healthcare Costs ◽  
Seasonal Influenza ◽  
Type A ◽  
Type B ◽  
Influenza Type ◽  
United States Healthcare

scholarly journals The Correlation of IFN <i>γ</i> to the Preferential Isolation of Influenza Type B over Type A Viruses in Madin Darby Canine Kidney Cells

2017 ◽  
Vol 07 (01) ◽  
pp. 12-28
Author(s):  
Timothy Byaruhanga ◽  
Bernard Bagaya ◽  
Joyce Namulondo ◽  
John Timothy Kayiwa ◽  
Barbara Namagambo ◽  
...  
Keyword(s):  
Type A ◽  
Kidney Cells ◽  
Type B ◽  
Madin Darby Canine Kidney ◽  
Influenza Type ◽  
Darby Canine Kidney ◽  
Canine Kidney

scholarly journals US healthcare costs attributable to type A and type B influenza

2017 ◽  
Vol 13 (9) ◽  
pp. 2041-2047 ◽  
Author(s):  
Songkai Yan ◽  
Derek Weycker ◽  
Stefania Sokolowski
Keyword(s):  
Healthcare Costs ◽  
Type A ◽  
Type B

Abstract 19298: Is the Seasonal Variation in Acute Aortic Dissection Occurrence Associated with Flu Activity?

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Harleen K Sandhu ◽  
Kristofer M Charlton-Ouw ◽  
Samuel S Leake ◽  
Ali Azizzadeh ◽  
Tom C Nguyen ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
Aortic Dissection ◽  
Response Surface ◽  
Seasonal Influenza ◽  
Acute Aortic Dissection ◽  
Type A ◽  
Type B ◽  
The Us ◽  
Influenza Activity ◽  
Response Surface Regression

Introduction: Numerous reports have described seasonal patterns of acute aortic dissection (AAD), but reasons for such patterns are unknown. Correlations between cardiovascular morbidity and seasonal influenza have also been described. Methods: We compared monthly admissions for AADs at our institution to the US seasonal influenza activity based on US Centers for Disease Control statistics over 13 years. Seasonal variation was modeled by autoregressive integrated moving average (ARIMA) analysis, and multivariate effects of season and influenza activity on aortic dissection admissions were assessed by response surface regression. Results: From January 2001 to December 2013, we treated 869 patients with AAD (398 type A, 442 typical type B, 29 type B variants). Admissions for AAD were identified as highest during the months of November to March (high period-HP). For type A AAD, 3.1 cases per month were admitted during HP, compared to 2.1 cases per month for the remainder of the year (p<0.002). Type B AADs averaged 3.2 cases/month during the HP compared to 2.9 cases/month for the remainder of the year (p=0.40). Influenza activity averaged 2.6% during HP compared to 1.1% in the remaining months (p<0.0001). ARIMA models for AAD over the entire 156 month observation period showed statistically significant seasonality (p<0.0001), and smoothed spline plots showed type A dissection and flu activity moving cyclically and generally in synchrony throughout the period (fig 1). Response surface regression demonstrated significant effects of flu activity (p<0.034) and month of the year (p<0.048) on the rate of AAD occurrence at our center. Conclusion: Presentation of AAD to our center and seasonal influenza activity in the US were both elevated during the HP, and were significantly correlated. Type A AAD significantly correlated with season or flu activity while Type B did not. Seasonal flu vaccination among high risk patients may be appropriate

An extended range for oak wilt and Ceratocystis fagacearum compatibility types in the United States

1985 ◽  
Vol 63 (7) ◽  
pp. 1325-1328 ◽  
Author(s):  
D. N. Appel ◽  
C. Frost Drees ◽  
J. Johnson
Keyword(s):  
United States ◽  
Type A ◽  
The United States ◽  
Type B ◽  
Oak Wilt ◽  
Ceratocystis Fagacearum ◽  
Sexual Compatibility ◽  
Extended Range ◽  
And Behavior ◽  
Multiple Tree

Oak wilt, caused by Ceratocystis fagacearum (Bretz) Hunt, has been found in 31 Texas counties, significantly extending the southern range of the disease in the United States. The 101 isolates obtained from 76 diseased oaks in 22 of those counties were assayed for sexual compatibility using a paired plug or spermatizing technique. There were 51 type A isolates and 44 type B isolates; 6 of the isolates could not be typed. A majority of multiple-tree infection centers contained only one compatibility type and only one diseased tree yielded both compatibility types. The distribution of compatibility types and behavior of C. fagacearum in Texas are consistent with those observed in other states.

Eleven Cases of Co-infection with Influenza Type A and Type B Suspected by Use of a Rapid Diagnostic Kit and Confirmed by RT-PCR and Virus Isolation

2005 ◽  
Vol 79 (11) ◽  
pp. 877-886 ◽  
Author(s):  
Shinichi TAKAO ◽  
Michimaru HARA ◽  
Osamu KAKUTA ◽  
Yukie SHIMAZU ◽  
Masaru KUWAYAMA ◽  
...  
Keyword(s):  
Virus Isolation ◽  
Type A ◽  
Type B ◽  
Rt Pcr ◽  
Influenza Type

scholarly journals Evaluation of the diagnostic utility of case definitions to detect influenza virus infection in Vojvodina, Serbia

2020 ◽  
Vol 148 (1-2) ◽  
pp. 100-105
Author(s):  
Mioljub Ristic ◽  
Vladimir Petrovic
Keyword(s):  
Type A ◽  
Case Definition ◽  
World Health ◽  
Influenza Surveillance ◽  
Age Group ◽  
Type B ◽  
Case Definitions ◽  
Influenza Type ◽  
Epidemic Period ◽  
Definition Of

Introduction/Objective. A case definition recommended by the World Health Organization is commonly used for influenza surveillance worldwide. The aim of this study was to evaluate prognostic values of proposed case definitions of Influenza Like Illness (ILI), Severe Acute Respiratory Illness (SARI) and Acute Respiratory Distress Syndrome (ARDS) for laboratory confirmed-influenza and to compare the age distribution of influenza patients across virus types and subtypes in Vojvodina. Methods. We conducted a descriptive epidemiological study using surveillance reports and laboratory data from October 1, 2010 to May 20, 2017 (seven surveillance seasons). Results. We included 2,937 participants, 48.6% of whom were laboratory-confirmed influenza cases, and most of the confirmed cases (30.1%) were detected in February. In the 15?29 years age group, the type A influenza (H3N2) was more frequent among patients with ILI (54.9% vs. 34.2%, p = 0.040), and less frequent in patients with SARI (39.4% vs. 65.8%, p = 0.009) compared with influenza type B. In patients aged 30?64 years with ARDS, influenza type B was more common than influenza type A (H3N2) (13.4% vs. 6.2%, p = 0.032), but less common in compared to influenza type A (H1N1) pdm09 (13.4% vs. 25.7%, p = 0.017). The SARI case definition of influenza was associated with an increased likelihood of laboratoryconfirmed influenza for all age groups (p < 0.05). During the epidemic period, it was observed that the ILI case definition had the highest diagnostic value for influenza in the age group 5?14 (AUC = 0.733; 95% CI: 0.704?0.764), while the SARI and ARDS case definitions were the best predictors of influenza for patients 15?29 years of age (AUC = 0.565; 95% CI: 0.504?0.615 and AUC = 0.708; 95% CI: 0.489?0.708, respectively). The case definition of ARDS had the maximum sensitivity (100%) among patients 15?29 years of age. Conclusion. The proposed case definitions of influenza appeared to be good predictors of influenza and therefore can be useful for influenza surveillance, especially in the countries with limited laboratory capacities.

scholarly journals Antigenic and genetic analyses of influenza type B viruses isolated in Russia, 1987–91

1993 ◽  
Vol 111 (3) ◽  
pp. 539-546 ◽  
Author(s):  
M. L. Hemphill ◽  
P. A. Rota ◽  
V. T. Ivanova ◽  
A. N. Slepushkin ◽  
A. P. Kendal
Keyword(s):  
United States ◽  
Sequence Analysis ◽  
Influenza Season ◽  
The United States ◽  
Evolutionary Relationships ◽  
Influenza B ◽  
Type B ◽  
Antigenic Analysis ◽  
Influenza Type ◽  
Reference Strains

SummaryFour influenza type B viruses isolated in Russia during periods of relatively low (1987–8) or high (1990–1) influenza B activity were characterized antigenically using a microneutralization assay. These isolates were antigenically similar to contemporary reference strains from either of two separate lineages represented by B/Victoria/2/87 and B/Yamagata/16/88. The evolutionary relationships of the variable portion of the haemagglutinin (HA1) genes of these viruses were determined by comparison with influenza B HA1 sequences previously obtained. The Isolate B/USSR/2/87, collected during the 1987–8 influenza season, was found to be closely related to viruses on the B/Victoria/2/87 lineage that circulated during the 1988–9 influenza season in the United States. Sequence analysis of the isolates from the 1990–1 influenza season demonstrated co-circulation of viruses from both the B/Victoria/2/87 and B/Yamagata/16/88 lineages in Russia, confirming the antigenic analysis.

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