scholarly journals Severe acute respiratory infections caused by 2009 pandemic influenza A (H1N1) among American Indians-southwestern United States, May 1-July 21, 2009

2013 ◽  
Vol 7 (6) ◽  
pp. 1361-1369 ◽  
Author(s):  
Anil Suryaprasad ◽  
John T. Redd ◽  
Kathy Hancock ◽  
Alicia Branch ◽  
Evelene Steward-Clark ◽  
...  
Keyword(s):  
United States ◽  
American Indians ◽  
Pandemic Influenza ◽  
Influenza A ◽  
Respiratory Infections ◽  
Acute Respiratory Infections ◽  
Southwestern United States ◽  
Influenza A H1n1 ◽  
Severe Acute Respiratory Infections

scholarly journals Age-Specific Etiology of Severe Acute Respiratory Infections and Influenza Vaccine Effectivity in Prevention of Hospitalization in Russia, 2018–2019 Season

2021 ◽  
Vol 11 (4) ◽  
pp. 413-425
Author(s):  
Anna Sominina ◽  
Daria Danilenko ◽  
Andrey Komissarov ◽  
Maria Pisareva ◽  
Tamila Musaeva ◽  
...  
Keyword(s):  
Influenza Vaccine ◽  
Influenza A ◽  
Respiratory Infections ◽  
Respiratory Viruses ◽  
H3n2 Virus ◽  
Acute Respiratory Infections ◽  
Pdm09 Virus ◽  
Negative Case ◽  
Influenza A H1n1 ◽  
Severe Acute Respiratory Infections

AbstractThe expansion and standardization of clinical trials, as well as the use of sensitive and specific molecular diagnostics methods, provide new information on the age-specific roles of influenza and other respiratory viruses in development of severe acute respiratory infections (SARI). Here, we present the results of the multicenter hospital-based study aimed to detect age-specific impact of influenza and other respiratory viruses (ORV). The 2018–2019 influenza season in Russia was characterized by co-circulation of influenza A(H1N1)pdm09 and A(H3N2) virus subtypes which were detected among hospitalized patients with SARI in 19.3% and 16.4%, respectively. RSV dominated among ORV (15.1% of total cases and 26.8% in infants aged ≤ 2 years). The most significant SARI agents in intensive care units were RSV and influenza A(H1N1)pdm09 virus, (37.3% and 25.4%, respectively, of PCR-positive cases). Hyperthermia was the most frequently registered symptom for influenza cases. In contrast, hypoxia, decreased blood O2 concentration, and dyspnea were registered more often in RSV, rhinovirus, and metapneumovirus infection in young children. Influenza vaccine effectiveness (IVE) against hospitalization of patients with PCR-confirmed influenza was evaluated using test-negative case–control design. IVE for children and adults was estimated to be 57.0% and 62.0%, respectively. Subtype specific IVE was higher against influenza A(H1N1)pdm09, compared to influenza A(H3N2) (60.3% and 45.8%, respectively). This correlates with delayed antigenic drift of the influenza A(H1N1)pdm09 virus and genetic heterogeneity of the influenza A(H3N2) population. These studies demonstrate the need to improve seasonal influenza prevention and control in all countries as states by the WHO Global Influenza Strategy for 2019–2030 initiative.

scholarly journals Effects of Vaccine Program against Pandemic Influenza A(H1N1) Virus, United States, 2009–2010

2013 ◽  
Vol 19 (3) ◽  
Author(s):  
Rebekah H. Borse ◽  
Sundar S. Shrestha ◽  
Anthony E. Fiore ◽  
Charisma Y. Atkins ◽  
James A. Singleton ◽  
...  
Keyword(s):  
United States ◽  
Pandemic Influenza ◽  
Influenza A ◽  
H1n1 Virus ◽  
Influenza A H1n1

scholarly journals Planning for the Control of Pandemic Influenza A (H1N1) in Los Angeles County and the United States

2011 ◽  
Vol 173 (10) ◽  
pp. 1121-1130 ◽  
Author(s):  
D. L. Chao ◽  
L. Matrajt ◽  
N. E. Basta ◽  
J. D. Sugimoto ◽  
B. Dean ◽  
...  
Keyword(s):  
United States ◽  
Los Angeles ◽  
Pandemic Influenza ◽  
Influenza A ◽  
Los Angeles County ◽  
The United States ◽  
Influenza A H1n1

scholarly journals Household Transmission of 2009 Pandemic Influenza A (H1N1) Virus in the United States

2009 ◽  
Vol 361 (27) ◽  
pp. 2619-2627 ◽  
Author(s):  
Simon Cauchemez ◽  
Christl A. Donnelly ◽  
Carrie Reed ◽  
Azra C. Ghani ◽  
Christophe Fraser ◽  
...  
Keyword(s):  
United States ◽  
Pandemic Influenza ◽  
Influenza A ◽  
H1n1 Virus ◽  
The United States ◽  
Household Transmission ◽  
Influenza A H1n1

scholarly journals Epidemiology of 2009 Pandemic Influenza A (H1N1) Deaths in the United States, April-July 2009

2010 ◽  
Vol 52 (Supplement 1) ◽  
pp. S60-S68 ◽  
Author(s):  
A. L. Fowlkes ◽  
P. Arguin ◽  
M. S. Biggerstaff ◽  
J. Gindler ◽  
D. Blau ◽  
...  
Keyword(s):  
United States ◽  
Pandemic Influenza ◽  
Influenza A ◽  
The United States ◽  
Influenza A H1n1

scholarly journals Hospitalized Patients with 2009 Pandemic Influenza A (H1N1) Virus Infection in the United States—September–October 2009

2011 ◽  
Vol 52 (suppl_1) ◽  
pp. S50-S59 ◽  
Author(s):  
Jacek Skarbinski ◽  
Seema Jain ◽  
Anna Bramley ◽  
Esther J. Lee ◽  
Jean Huang ◽  
...  
Keyword(s):  
United States ◽  
Virus Infection ◽  
Pandemic Influenza ◽  
Influenza A ◽  
H1n1 Virus ◽  
The United States ◽  
Hospitalized Patients ◽  
Influenza A H1n1 ◽  
H1n1 Virus Infection
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