IP-10 has been explored for its use as a prognostic or diagnostic marker for other infectious diseases such as malaria, where plasma IP-10 level is associated with fatal cerebral malaria20; hepatitis C, where plasma IP-10 has the power to predict liver damage23, or tuberculosis, where IP-10 levels differentiate between active and latent tuberculosis irrespective of HIV infection24. Here, CXCL10 is linked to hepatitis C virus infection.