scholarly journals Seroprevalence study of infection with influenza A(H1N1)pdm09 virus in San Felipe Town, Chile

2013 ◽  
Vol 03 (07) ◽  
pp. 476-482
Author(s):  
Olea Andrea ◽  
Fasce Rodrigo ◽  
Aguilera Ximena ◽  
Oliva Otavio ◽  
Muñoz Sergio ◽  
...  
Keyword(s):  
Influenza A ◽  
Seroprevalence Study ◽  
Pdm09 Virus ◽  
Influenza A H1n1

scholarly journals Seroprevalence study in Vojvodina (Serbia) following 2009 pandemic influenza A(H1N1)v

2012 ◽  
Vol 140 (11-12) ◽  
pp. 751-755
Author(s):  
Vladimir Petrovic ◽  
Zorica Seguljev ◽  
Jasminka Nedeljkovic ◽  
Mioljub Ristic
Keyword(s):  
Pandemic Influenza ◽  
Hemagglutination Inhibition ◽  
Influenza A ◽  
Herd Immunity ◽  
Age Groups ◽  
Immunization Coverage ◽  
Control Group ◽  
Study Objective ◽  
Seroprevalence Study ◽  
Influenza A H1n1

Introduction. The seroprevalence study was performed in Vojvodina during May and June 2010 in order to asses the effects of the 2009 pandemic influenza A(H1N1)v epidemic on herd immunity. It was a part of the Serbian Ministry of Health funded nationwide study. Objective. Prevalence of antibodies against 2009 pandemic influenza A(H1N1)v was determined in a 1% sample of the population monitored for influenza-like illness and acute respiratory infections in Vojvodina through sentinel surveillance system. Methods. The study sample involved a total of 1004 inhabitants of Vojvodina. The control group consisted of randomly selected and age-adjusted 1054 sera collected in the pre-pandemic period. Sera were tested by the reaction of hemagglutination inhibition using influenza A/California/7/2009 (H1N1) antigen in dilution from 1:8 to 1:256. Antibody titers ?1:32 and ?1:8 were considered protective and diagnostic, respectively. Results. The differences between control and study sera in all age groups were significant for both diagnostic ?1/8 and protective titres ?1/32 of hemagglutination inhibition antibodies (chi square test, p<0.001). The highest percentage of seropositive subjects was registered in the age group 15-19 years followed by children aged 5-14 years. Both diagnostic and protective titres were about twice higher in the vaccinated as compared to the non-vaccinated group. There were no statistically significant differences in seroprevalence between seven districts of Vojvodina. Conclusion. The 2009 pandemic influenza A(H1N1)v epidemic significantly influenced the herd immunity in our population regardless of low immunization coverage with highest immunity levels in adolescents aged 15-19 years and with similar herd immunity levels in all the regions in the province six months after the outbreak.

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.

scholarly journals Influenza A(H1N1)pdm09 virus and asthma

2013 ◽  
Vol 4 ◽  
Author(s):  
Masatsugu Obuchi ◽  
Yuichi Adachi ◽  
Takenori Takizawa ◽  
Tetsutaro Sata
Keyword(s):  
Influenza A ◽  
Pdm09 Virus ◽  
Influenza A H1n1

scholarly journals Detection of the Influenza A(H1N1)pdm09 Virus Carrying the K-15E, P83S and Q293H Mutations in Patients Who Have Undergone Bone Marrow Transplant

PLoS ONE ◽  
2014 ◽  
Vol 9 (4) ◽  
pp. e94822 ◽  
Author(s):  
Milene Mesquita ◽  
Paola Resende ◽  
Andressa Marttorelli ◽  
Viviane Machado ◽  
Carolina Q. Sacramento ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Bone Marrow Transplant ◽  
Influenza A ◽  
Marrow Transplant ◽  
Pdm09 Virus ◽  
Influenza A H1n1

scholarly journals Contact Tracing for Influenza A(H1N1)pdm09 Virus–infected Passenger on International Flight

2014 ◽  
Vol 20 (1) ◽  
pp. 118-120 ◽  
Author(s):  
Ananda G. Shankar ◽  
Kulsum Janmohamed ◽  
Babatunde Olowokure ◽  
Gillian E. Smith ◽  
Angela H. Hogan ◽  
...  
Keyword(s):  
Influenza A ◽  
Contact Tracing ◽  
Pdm09 Virus ◽  
Influenza A H1n1

Oseltamivir-resistant influenza A(H1N1) pdm09 virus: first reported case from India

2013 ◽  
Vol 2 (3) ◽  
pp. 181 ◽  
Author(s):  
VarshaA Potdar ◽  
VikramV Padbidri ◽  
MandeepS Chadha
Keyword(s):  
Influenza A ◽  
Pdm09 Virus ◽  
Influenza A H1n1

scholarly journals Surveillance for Oseltamivir-Resistant Influenza A(H1N1)pdm09 Virus Infections During 2015–2016, United States

2016 ◽  
Vol 3 (suppl_1) ◽  
Author(s):  
Sarah Spencer ◽  
Ha Nguyen ◽  
Anwar Abd Elal ◽  
Angela P. Campbell ◽  
Jennifer Laplante ◽  
...  
Keyword(s):  
United States ◽  
Influenza A ◽  
Virus Infections ◽  
Pdm09 Virus ◽  
Influenza A H1n1

Evolution of the Hemagglutinin Gene of the Influenza A(H1N1)pdm09 Virus in Morocco During Two Influenza Seasons 2009–2011

2013 ◽  
Vol 68 (3) ◽  
pp. 372-380 ◽  
Author(s):  
Hicham El Rhaffouli ◽  
El Mostafa El Fahime ◽  
Abdellilah Laraqui ◽  
Tahar Bajjou ◽  
Marouane Melloul ◽  
...  
Keyword(s):  
Influenza A ◽  
Pdm09 Virus ◽  
Influenza A H1n1 ◽  
Hemagglutinin Gene

scholarly journals Serologic Evidence of Influenza A(H1N1)pdm09 Virus Infection in Northern Sea Otters

2014 ◽  
Vol 20 (5) ◽  
pp. 915-917 ◽  
Author(s):  
Zhu-Nan Li ◽  
Hon S. Ip ◽  
Jessica F. Trost ◽  
C. LeAnn White ◽  
Michael J. Murray ◽  
...  
Keyword(s):  
Virus Infection ◽  
Influenza A ◽  
Sea Otters ◽  
Pdm09 Virus ◽  
Influenza A H1n1 ◽  
Serologic Evidence

scholarly journals Analysis of Adaptation Mutants in the Hemagglutinin of the Influenza A(H1N1)pdm09 Virus

PLoS ONE ◽  
2013 ◽  
Vol 8 (7) ◽  
pp. e70005 ◽  
Author(s):  
Alicia Jiménez-Alberto ◽  
Esmeralda Alvarado-Facundo ◽  
Rosa María Ribas-Aparicio ◽  
Juan A. Castelán-Vega
Keyword(s):  
Influenza A ◽  
Pdm09 Virus ◽  
Influenza A H1n1
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