scholarly journals Influenza A(H1N1)v virus infections in Belgium, May-June 2009

2009 ◽  
Vol 14 (28) ◽  
Author(s):  
Collective Belgian working group on influenza A(H1N1)v
Keyword(s):  
North America ◽  
Active Surveillance ◽  
Surveillance System ◽  
Influenza A ◽  
Virus Infections ◽  
Influenza Like Illness ◽  
Epidemiological Features ◽  
Influenza A H1n1 ◽  
Set Up

In response to the ongoing influenza A(H1N1)v pandemic, first detected in North America in April 2009, Belgium has set up an active surveillance system for influenza-like illness among travellers returning from affected areas. This communication describes the clinical and epidemiological features of the first 43 laboratory-confirmed cases in Belgium.

scholarly journals New influenza A(H1N1) virus infections in France, April – May 2009

2009 ◽  
Vol 14 (21) ◽  
Author(s):  
Collective New influenza A(H1N1) investigation teams*
Keyword(s):  
North America ◽  
Active Surveillance ◽  
Influenza A ◽  
Clinical Characteristics ◽  
H1n1 Virus ◽  
Virus Infections ◽  
Influenza A H1n1 ◽  
Set Up

Since the emergence of a new influenza A(H1N1) virus in North America and its international spread, an active surveillance of cases of infection due to this virus has been set up in France in order to undertake appropriate measures to slow down the spread of the new virus. This report describes the epidemiological and clinical characteristics of the 16 laboratory confirmed cases diagnosed in France as of 20 May 2009.

scholarly journals Community transmission of influenza A (H1N1)v virus at a rock festival in Belgium, 2-5 July 2009

2009 ◽  
Vol 14 (31) ◽  
Author(s):  
I Gutiérrez ◽  
A Litzroth ◽  
S Hammadi ◽  
H Van Oyen ◽  
C Gérard ◽  
...  
Keyword(s):  
Surveillance System ◽  
Influenza A ◽  
Influenza Pandemic ◽  
Control Measures ◽  
Influenza Like Illness ◽  
Health Authorities ◽  
Influenza A H1n1 ◽  
Community Transmission ◽  
And Control

On 6 July 2009 the Belgian enhanced surveillance system for influenza-like illness among travellers returning from influenza A(H1N1)v affected areas detected a case linked to a rock festival which took place on 2-5 July. The health authorities implemented communication and control measures leading to the detection of aditional cases. This paper describes the outbreak and its impact on the management of the influenza pandemic in Belgium.

scholarly journals Modified surveillance of influenza A(H1N1)v virus infections in France

2009 ◽  
Vol 14 (29) ◽  
Author(s):  
Influenza A(H1N1)v investigation teams
Keyword(s):  
Hospital Care ◽  
Influenza A ◽  
Population Based ◽  
Control Measures ◽  
Virus Infections ◽  
Influenza Like Illness ◽  
Influenza A H1n1 ◽  
Community Transmission

Up to early July 2009, surveillance of H1N1 cases in France was based on the identification of all possible cases in order to implement, around each of them, control measures aimed at delaying the spread of the virus. The global dissemination of the virus and the starting community transmission in France led us to shift to a population-based surveillance relying mainly on the identification and investigation of clusters of influenza-like illness, on the identification and individual follow-up of confirmed hospitalised cases as well as on the monitoring, through various sentinel systems, of the use of ambulatory and hospital care for influenza-like symptoms.

scholarly journals Electronic real-time surveillance for influenza-like illness: experience from the 2009 influenza A(H1N1) pandemic in Denmark

2011 ◽  
Vol 16 (3) ◽  
Author(s):  
K M Harder ◽  
P H Andersen ◽  
I Bæhr ◽  
L P Nielsen ◽  
S Ethelberg ◽  
...  
Keyword(s):  
Real Time ◽  
Surveillance System ◽  
Influenza A ◽  
Daily Basis ◽  
Influenza Surveillance ◽  
Situational Analysis ◽  
Influenza Like Illness ◽  
Electronic Reporting ◽  
Influenza A H1n1 ◽  
Sentinel Surveillance System

To enhance surveillance for influenza-like illness (ILI) in Denmark, a year-round electronic reporting system was established in collaboration with the Danish medical on-call service (DMOS). In order to achieve real-time surveillance of ILI, a checkbox for ILI was inserted in the electronic health record and a system for daily transfer of data to the national surveillance centre was implemented. The weekly number of all consultations in DMOS was around 60,000, and activity of ILI peaked in week 46 of 2009 when 9.5% of 73,723 consultations were classified as ILI. The incidence of ILI reached a maximum on 16 November 2009 for individuals between five and 24 years of age, followed by peaks in children under five years, adults aged between 25 and 64 years and on 27 November in senior citizens (65 years old or older). In addition to the established influenza surveillance system, this novel system was useful because it was timelier than the sentinel surveillance system and allowed for a detailed situational analysis including subgroup analysis on a daily basis.

scholarly journals Enhanced epidemiological surveillance of influenza A(H1N1)v in Italy

2009 ◽  
Vol 14 (27) ◽  
Author(s):  
C Rizzo ◽  
S Declich ◽  
A Bella ◽  
M G Caporali ◽  
S Lana ◽  
...  
Keyword(s):  
Active Surveillance ◽  
Influenza A ◽  
Seasonal Influenza ◽  
Epidemiological Surveillance ◽  
Italian Regions ◽  
Influenza A H1n1 ◽  
Set Up

As of 7 July 2009, a total of 158 laboratory-confirmed cases of influenza A(H1N1)v were reported in Italy, from half of the 21 Italian regions. To date all cases have had symptoms consistent with seasonal influenza and no severe or fatal cases have been reported. An active surveillance of cases has been set up in Italy in order to undertake appropriate measures to slow down the spread of the new virus. This report describes the routine and enhanced surveillance currently ongoing in Italy.

scholarly journals Influenza-Like Illness in a Community Surrounding a School-Based Outbreak of 2009 Pandemic Influenza A (H1N1) Virus-Chicago, Illinois, 2009

2010 ◽  
Vol 52 (Supplement 1) ◽  
pp. S94-S101 ◽  
Author(s):  
K. B. Janusz ◽  
J. E. Cortes ◽  
F. Serdarevic ◽  
R. C. Jones ◽  
J. D. Jones ◽  
...  
Keyword(s):  
Pandemic Influenza ◽  
Influenza A ◽  
H1n1 Virus ◽  
Influenza Like Illness ◽  
School Based ◽  
Influenza A H1n1

Mixed polysaccharides derived from shiitake mushroom, Poriacocos, Ginger and Tangerine peel prevent the H1N1 virus infections in mice

2021 ◽  
Author(s):  
Diqi Yang ◽  
Minghua Hu ◽  
Hongmei Zhu ◽  
Jianguo Chen ◽  
Dehai Wang ◽  
...  
Keyword(s):  
Influenza A ◽  
Clinical Symptoms ◽  
H1n1 Virus ◽  
Global Public Health ◽  
Virus Infections ◽  
Shiitake Mushroom ◽  
Virus Challenge ◽  
Influenza A H1n1 ◽  
Public Health Challenges ◽  
Cellular Immune

Abstract The pandemic influenza A (H1N1) virus spread globally and posed one of the most serious global public health challenges. The traditional Chinese medicine is served as a complementary treatment strategy with vaccine immunization. Here, we demonstrated the mixed polysaccharides (MPs) derived from shiitake mushroom, poriacocos, ginger and tyangerine peel prevent the H1N1 virus infections in mice. MPs pretreatment attenuated H1N1 virus-induced weight loss, clinical symptoms and death. The lymphocytes detection results showed the CD3+, CD19+ and CD25+ cell proportions were up-regulated in thymus under MPs pretreatment. Besides, MPs pretreatment reduced the inflammatory cell infiltration and increased the cell proportions of CD19+, CD25+ and CD278+ in lung. However, MPs treatment have no effective therapeutic effect after H1N1 virus challenge. The current study suggested that pretreatment with MPs could attenuate H1N1 virus-induced lung injury and up-regulate humoral and cellular immune responses in non- immunized mice.

scholarly journals Seroepidemiology of pandemic influenza A (H1N1) 2009 virus infections in Pune, India

2010 ◽  
Vol 10 (1) ◽  
Author(s):  
Babasaheb V Tandale ◽  
Shailesh D Pawar ◽  
Yogesh K Gurav ◽  
Mandeep S Chadha ◽  
Santosh S Koratkar ◽  
...  
Keyword(s):  
Pandemic Influenza ◽  
Influenza A ◽  
Virus Infections ◽  
Influenza A H1n1

scholarly journals Fluctuations in influenza-like illness epidemics and suicide mortality: A time-series regression of 13-year mortality data in South Korea

PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0244596
Author(s):  
Sun Jae Jung ◽  
Sung-Shil Lim ◽  
Jin-Ha Yoon
Keyword(s):  
Time Series ◽  
South Korea ◽  
Influenza A ◽  
Suicide Mortality ◽  
Mortality Data ◽  
Time Series Regression ◽  
Influenza Like Illness ◽  
Pdm09 Virus ◽  
Influenza A H1n1 ◽  
Novel Influenza A

Aims We explored the association between influenza epidemic and suicide mortality rates in a large population using a time-series regression of 13-year mortality data in South Korea. Methods Weekly suicide mortalities and influenza-like illness (ILI) were analyzed using time series regression. Regression coefficient for suicide mortality based on percentage change of ILI was calculated using a quasi-Poisson regression. Non-linear distributed lag models with quadratic function up to 24 weeks were constructed. Results The association between ILI and suicide mortality increased significantly up to 8 weeks post-influenza diagnosis. A significant positive association between ILI and suicide mortality was observed from 2009, when a novel influenza A(H1N1)pdm09 virus provoked a worldwide pandemic. No meaningful association between these factors was observed before 2009. Conclusion There was a significant positive relationship between ILI and suicide mortality after 2009, when a novel influenza A(H1N1)pdm09 virus provoked a worldwide pandemic.

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