Whether a diver with Hepatitis C (HCV) should dive depends upon several factors:
-Stage of his disease
-Level of hepatic involvement
-Type of treatment he is receiving
-Original cause of his HCV (drug injections?, etc). 28% of all HCV infections are from injectable drug use.
A diver with this disease needs to be in relatively good physical condition (from a conditioning standpoint), have no severe liver involvement with cirrhosis and under no dangerous treatment protocol that would injure the immune system. Newer therapies for HCV include drugs that cause severe suppression to the immune system, making it highly dangerous to dive even in relatively clean water.
The poorly conditioned and the cirrhotic should not dive; the person with even the slightest possibility of drug use should not dive.
Medications include Interferon and Ribavarin
Side effects of interferon alfa (* Indicates adverse to diving)
Flu-like illness*, chills, fever, malaise*, muscle aches, headache*, poor appetite
Later – common
Increased need for sleep *
Psychological side effects (irritability, anxiety, depression)**
Thrombocytopenia (low platelet count can cause bleeding)**, leucopenia (low white count increases susceptibility to infection)**
Unusual or severe
Acute psychosis **
Bacterial infections **
Autoimmune reactions *
Hyperthyroidism or hypothyroidism or transient thyroiditis *
Interstitial lung disease *
Ribavirin has the following side effects:
Marine infections, particularly Vibrio vulnificus are more likely to happen in the immunosuppressed.