Let me ask you a question -- why do you suspect that he has contracted something?
If you have reason to be worry, then you can usually detected the hepatitis C virus within 1-3 weeks and the HIV around week 4 through a (Polymerase chain reaction) PCR test. This is very expensive test.
Otherwise you can wait 3 months to have an antibody test done. By this time, if an individual has been infected they most likely would have sero-converted.
Hepatitis C can sometimes be cured, particularly if it is caught early, through interfon treatments. Most healthy individuals are able clear the Hepatitis B virus without medical intervention. There is of course effective treatment options for HIV but no cure.