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Figure 1 | Trials

Figure 1

From: Exposure to persons with symptoms of respiratory or gastrointestinal infection and relative risk of disease: self-reported observations by controls in a randomized intervention trial

Figure 1

Seasonal variation of reported exposures to (thick line), and own symptoms (thin line) of respiratory infections (RTI), and gastrointestinal tract infections (GTI). Monthly values reflect means of the corresponding weeks. Months are shown by initial letter codes starting from January 2009.

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Trials

ISSN: 1745-6215