Comparison of Th1 and Th2 cytokine levels between different groups at baseline. Horizontal axis represents different kind of cytokines; vertical axis represents cytokine concentration (pg/ml) in plasma. Four coloured bar represents different study groups: HIV/HCV co-infection group (pink bars), HIV mono-infection group (orange bars), HCV mono-infection group (olive bars), and healthy control (green bars).
Kang et al. BMC Infectious Diseases 2012 12:102 doi:10.1186/1471-2334-12-102