Norovirus disease surveillance using Google Internet query share data.
Google Internet query share (IQS) data for gastroenteritis-related search terms correlated strongly with contemporaneous national (R(2) = 0.70) and regional (R(2) = 0.74) norovirus surveillance data in the United States. IQS data may facilitate rapid identification of norovirus season onset, elevated peak activity, and potential emergence of novel strains.
Centers for Disease Control and Prevention, 1600 Clifton Rd. NE, MS-A34, Atlanta, GA 30333, USA. rdesai1@cdc.gov
Rishi
R
Desai
Aron J
AJ
Hall
Benjamin A
BA
Lopman
Yair
Y
Shimshoni
Marcus
M
Rennick
Niv
N
Efron
Yossi
Y
Matias
Manish M
MM
Patel
Umesh D
UD
Parashar
D017250:Caliciviridae Infections / Q000453:epidemiology* / Q000821:virology; D004196:Disease Outbreaks / Q000706:statistics & numerical data*; D005759:Gastroenteritis / Q000453:epidemiology* / Q000821:virology; D006801:Humans; D020407:Internet; D008404:Massachusetts / Q000453:epidemiology; D029322:Norovirus / Q000302:isolation & purification*; D011446:Prospective Studies; D062486:Public Health Surveillance / Q000379:methods*; D014481:United States / Q000453:epidemiology