tetano
Editor, Senior Moderator
Emerg Infect Dis. 2020 Feb;26(2):220-228. doi: 10.3201/eid2602.181732. [h=1]Illness Severity in Hospitalized Influenza Patients by Virus Type and Subtype, Spain, 2010-2017.[/h]
Delgado-Sanz C, Mazagatos-Ateca C, Oliva J, Gherasim A, Larrauri A.
[h=3]Abstract[/h] We conducted a retrospective cohort study to assess the effect of influenza virus type and subtype on disease severity among hospitalized influenza patients in Spain. We analyzed the cases of 8,985 laboratory-confirmed case-patients hospitalized for severe influenza by using data from a national surveillance system for the period 2010-2017. Hospitalized patients with influenza A(H1N1)pdm09 virus were significantly younger, more frequently had class III obesity, and had a higher risk for pneumonia or acute respiratory distress syndrome than patients infected with influenza A(H3N2) or B (p<0.05). Hospitalized patients with influenza A(H1N1)pdm09 also had a higher risk for intensive care unit admission, death, or both than patients with influenza A(H3N2) or B, independent of other factors. Determining the patterns of influenza-associated severity and how they might differ by virus type and subtype can help guide planning and implementation of adequate control and preventive measures during influenza epidemics.
[h=4]KEYWORDS:[/h] Spain; influenza; influenza A(H1N1)pdm09; influenza A(H3N2); influenza B; influenza hospitalizations; respiratory infections; severe influenza; surveillance; viral subtypes; viral types; viruses
PMID: 31961295 DOI: 10.3201/eid2602.181732
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Delgado-Sanz C, Mazagatos-Ateca C, Oliva J, Gherasim A, Larrauri A.
[h=3]Abstract[/h] We conducted a retrospective cohort study to assess the effect of influenza virus type and subtype on disease severity among hospitalized influenza patients in Spain. We analyzed the cases of 8,985 laboratory-confirmed case-patients hospitalized for severe influenza by using data from a national surveillance system for the period 2010-2017. Hospitalized patients with influenza A(H1N1)pdm09 virus were significantly younger, more frequently had class III obesity, and had a higher risk for pneumonia or acute respiratory distress syndrome than patients infected with influenza A(H3N2) or B (p<0.05). Hospitalized patients with influenza A(H1N1)pdm09 also had a higher risk for intensive care unit admission, death, or both than patients with influenza A(H3N2) or B, independent of other factors. Determining the patterns of influenza-associated severity and how they might differ by virus type and subtype can help guide planning and implementation of adequate control and preventive measures during influenza epidemics.
[h=4]KEYWORDS:[/h] Spain; influenza; influenza A(H1N1)pdm09; influenza A(H3N2); influenza B; influenza hospitalizations; respiratory infections; severe influenza; surveillance; viral subtypes; viral types; viruses
PMID: 31961295 DOI: 10.3201/eid2602.181732
Free full text