Due to the similar routes of transmission of<unk>  and HCV,<unk> -positive individuals are at great risk of<unk>  and HCV<unk> . These routes of transmission include percutaneous blood exposure, sexual intercourse, and mother-to-child transmission. In the United States, injection drug use is known to be the most common mode of transmission of HCV. Some studies have shown that<unk>  is significantly associated with older age as well as illicit intravenous and non-intravenous drug use, and<unk> -infected individuals have a higher overall risk of HCV infection irrespective of intravenous drug use or other risk factors.
Hepatitis C and HIV coinfection
HIV superinfection
Tuberculosis in relation to HIV
Epstein–Barr virus infection
HPV-positive oropharyngeal cancer
Latent autoimmune diabetes in adults
Smoking in South Korea
History of coronavirus