with would become infected as well.
             Another "high risk group" consists of intravenous drug users, which, as explained
             earlier, involves the injection of drugs directly into the vein by a needle. Drug users would
             use a needle to inject certain drugs, such as heroin, into a vein. After this, the needle was
             passed on to the next user without sterilization. If the first user was infected with the virus,
             the unsterilized needle became a source of transmission for the virus. Medical e
             ...