Abstract
The peak of Internet searches and social media data about the coronavirus disease 2019 (COVID-19) outbreak occurred 10-14 days earlier than the peak of daily incidences in China. Internet searches and social media data had high correlation with daily incidences, with the maximum r > 0.89 in all correlations. The lag correlations also showed a maximum correlation at 8-12 days for laboratory-confirmed cases and 6-8 days for suspected cases.
Keywords:
Baidu Index; COVID-19; Google Trends; Internet surveillance; Weibo Index; coronavirus.
MeSH terms
-
COVID-19
-
China / epidemiology
-
Coronavirus Infections / diagnosis*
-
Coronavirus Infections / epidemiology*
-
Coronavirus Infections / transmission
-
Disease Outbreaks / statistics & numerical data*
-
Humans
-
Incidence
-
Internet*
-
Laboratories / statistics & numerical data*
-
Pneumonia, Viral / diagnosis
-
Pneumonia, Viral / epidemiology*
-
Pneumonia, Viral / transmission
-
Population Surveillance / methods*
-
Public Health Practice
-
Search Engine / statistics & numerical data*
-
Social Media / statistics & numerical data*
-
Social Media / trends
-
Web Browser / statistics & numerical data*
-
Web Browser / trends