Hepatitis A virus is essentially transmitted through:
- Blood contact, drug use and sexual contact (especially between homosexual partners) with those who carry the infection.
- Eating shellfish from contaminated water
- Coming into contact with food, drinks, or objects contaminated with faeces of an infected individual
- The "faecal-oral" route in area of poor hygiene and overcrowding
Hepatitis B virus is usually found in blood, it can also be detected in the semen and vaginal secretions. It can be infected through:
- Mothers who are about to give birth to a new baby that are infected and transmit the infection to their newborn.
- Other activities that has contaminated blood going into the bloodstream of a susceptible individual.
- Sharing injections that are contaminated among drug users.
- Unsafe sexual contact with an infected individual
Hepatitis C is more commonly found in the blood and can be transmitted through contaminated needles and enters the bloodstream of an individual that is prone to get contracted.