Volume 16, Number 1—January 2010
Research
Epidemiology of Travel-associated Pandemic (H1N1) 2009 Infection in 116 Patients, Singapore
Figure 1

Figure 1. Sources of exposure, by region and country, among 116 patients in Singapore infected with pandemic (H1N1) 2009 virus identified during epidemiologic weeks 21–25, 2009. A) Asia compared with other regions; B) the Philippines; C) Thailand; D) Indonesia; E) other Asian countries. Week 21, May 24–30; week 22, May 30–June 6; week 23, June 7–13; week 24, June 14–20; week 25, June 21–27.
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