Type A:

• Feco-oral route.
• Contaminated fruits or vegetables or uncooked shellfish.
• Contaminated water or milk.
• Poorly washed utensils.

Type B:

• Blood or body fluid contact.
• Sexual contact.
• Infected saliva or semen.
• Contaminated needles.
• Infected blood products.

Type C:

• Blood or body fluid contact.
• Sexual contact.
• Infected saliva or semen.
• Contaminated needles.
• Infected blood products.

Type D:

• Causes infection only in the presence of active Hepatitis B.
• Blood and body fluids contact.
• Infected saliva or semen.
• Contaminated needles.
• Infected blood products.

Type E:

• Feco-oral route.
• Contaminated fruits or vegetables or uncooked shellfish.
• Contaminated water or milk.
• Poorly washed utensils.