Burden and characteristics of influenza A and B in Danish intensive care units during the 2009/10 and 2010/11 influenza seasons.
Epidemiol Infect
; 141(4): 767-75, 2013 Apr.
Article
in En
| MEDLINE
| ID: mdl-22793496
ABSTRACT
Influenza surveillance in Danish intensive care units (ICUs) was performed during the 2009/10 and 2010/11 influenza seasons to monitor the burden on ICUs. All 44 Danish ICUs reported aggregate data for incidence and point prevalence, and case-based demographical and clinical parameters. Additional data on microbiological testing, vaccination and death were obtained from national registers. Ninety-six patients with influenza A(H1N1)pdm09 were recorded in 2009/10; 106 with influenza A and 42 with influenza B in 2010/11. The mean age of influenza A patients was higher in 2010/11 than in 2009/10, 53 vs. 44 years (P = 0·004). No differences in other demographic and clinical parameters were detected between influenza A and B patients. In conclusion, the number of patients with severe influenza was higher in Denmark during the 2010/11 than the 2009/10 season with a shift towards older age groups in influenza A patients. Influenza B caused severe illness and needs consideration in clinical and public health policy.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Influenza A virus
/
Influenza B virus
/
Influenza, Human
/
Influenza A Virus, H1N1 Subtype
/
Intensive Care Units
Type of study:
Incidence_studies
/
Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Adolescent
/
Adult
/
Aged
/
Child
/
Child, preschool
/
Humans
/
Infant
/
Middle aged
Country/Region as subject:
Europa
Language:
En
Journal:
Epidemiol Infect
Journal subject:
DOENCAS TRANSMISSIVEIS
/
EPIDEMIOLOGIA
Year:
2013
Type:
Article
Affiliation country:
Sweden