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. Author manuscript; available in PMC: 2016 Mar 1.
Published in final edited form as: Epidemics. 2015 Feb 16;10:102–107. doi: 10.1016/j.epidem.2015.02.002

Figure 1. Pathogen dynamics within individual infections.

Figure 1

Grey shaded areas denote periods where the infection is asymptomatic, either due to chronicity in malaria (A) and HIV (B) or latency as in TB (C). Despite a lack of symptoms, particularly during chronic infections, individuals may still be infectious and contribute to spread of the pathogen.