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The web of human sexual contacts

Promiscuous individuals are the vulnerable nodes to target in safe-sex campaigns.

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Figure 1: It's a small world: social networks have small average path lengths between connections and show a large degree of clustering.
Figure 2: Scale-free distribution of the number of sexual partners for females and males.


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Correspondence to Fredrik Liljeros.

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Liljeros, F., Edling, C., Amaral, L. et al. The web of human sexual contacts. Nature 411, 907–908 (2001).

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