Who gets hospitalized for influenza pneumonia in Thailand? Implications for vaccine policy.
Risk factor information for severe complications of interpandemic influenza is needed to inform vaccine policy in Thailand. We identified patients with lab-confirmed influenza who were hospitalized with pneumonia during September 2003 to August 2004. Among the 80 case-patients identified through a population-based pneumonia surveillance system in eastern Thailand, cases were 6.2 and 11.1 times more likely to be among persons<1 year old and >75 years old, respectively, compared with the overall population. Cases were also 7.6 times more likely to have chronic respiratory disease. In Thailand, the young, elderly, and those with chronic disease were at high risk for hospitalized pneumonia from influenza.
Katz
Mark A
MA
Epidemic Intelligence Service, Office of Workforce and Career Development, Atlanta, GA 30333, United States. makatz@cdc.gov
Tharmaphornpilas
Piyanit
P
Chantra
Somrak
S
Dowell
Scott F
SF
Uyeki
Timothy
T
Lindstrom
Steve
S
Balish
Amanda
A
Peret
Teresa C T
TC
Chittaganpitch
Malinee
M
Simmerman
James M
JM
Olsen
Sonja J
SJ
D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D002648:Child; D002675:Child, Preschool; D006291:Health Policy; D006760:Hospitalization / Q000706:statistics & numerical data*; D006801:Humans; D007223:Infant; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000150:complications* / Q000453:epidemiology* / Q000517:prevention & control; D008875:Middle Aged; D011014:Pneumonia / Q000453:epidemiology*; D012307:Risk Factors; D013785:Thailand / Q000453:epidemiology
D007252:Influenza Vaccines