10.1371/journal.pone.0011170.g004 Camila Malta Romano Camila Malta Romano Isabel M. V. Guedes de Carvalho-Mello Isabel M. V. Guedes de Carvalho-Mello Leda F. Jamal Leda F. Jamal Fernando Lucas de Melo Fernando Lucas de Melo Atila Iamarino Atila Iamarino Marco Motoki Marco Motoki João Renato Rebello Pinho João Renato Rebello Pinho Edward C. Holmes Edward C. Holmes Paolo Marinho de Andrade Zanotto Paolo Marinho de Andrade Zanotto Scale-free sexual contact network of HCV carriers. Public Library of Science 2010 hcv 2010-06-23 01:09:20 Figure https://plos.figshare.com/articles/figure/_Scale_free_sexual_contact_network_of_HCV_carriers_/514160 <p><b>A</b>) The cumulative frequency distribution <i>P</i>(<i>k</i>) versus the number of partners (<i>k</i>) shows that the low connectivity end of this network (individuals with 5 or less sexual partners) is associated with a higher prevalence of HIV-1b infected individuals compared to the high connectivity heavy tail-end of the network, which is in turn more frequently associated by HCV-1a and 3a carriers. <b>B</b>) Social, clinical and transmission risk factors are shown in increasing frequency in relation to the high-connectivity group that includes all HCV patients with 50 or more sexual contacts (dark grey) compared to the low-connectivity group that includes all HCV patients with 5 or less sexual contacts (light grey). The final two columns on the right show a preponderance of males with increased risk factors and behaviors. The high frequency of blood transfusions among the low-connectivity group shows its importance for HCV transmission among the general population at large up until the early 1990's.</p>