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What is the difference between hepatitis A and B?(ethiology, incubation period, transmission)

Traditionally, viral hepatitis had been classified into two types: infectious(A) and serum(B).

hepA had a shoter incubation period, high contagious rate, and usually a fecal-oral route of transmission, hepB had a longer incubation period, was less contangious, and was thought to be transmitted only by the parenteral route.

Hepatitis A - this is caused by eating infected food or water. The food or water is infected with a virus called HAV (Hepatitis A Virus). Anal-oral contact during sex can also be a cause.
Hepatitis B - this is an STD (sexually transmitted disease). It is caused by the virus HBV (Hepatitis B Virus) and is spread by contact with infected blood, semen, and some other body fluids.

The liver of a person infected with Hepatitis B swells. The patient can suffer serious liver damage due to infection, resulting in cancer

The acute phase of hepatitis - symptoms
Diarrhea

§ Fatigue

§ Loss of appetite

§ Mild fever

§ Muscle or joint aches

§ Nausea

§ Slight abdominal pain

§ Vomiting

§ Weight loss

As the patient gets worse, these symptoms may follow:

§ Circulation problems (only toxic/drug-induced hepatitis)

§ Dark urine

§ Dizziness (only toxic/drug-induced hepatitis)

§ Drowsiness (only toxic/drug-induced hepatitis)

§ Enlarged spleen (only alcoholic hepatitis)

§ Headache (only toxic/drug-induced hepatitis)

§ Hives

§ Itchy skin

§ Light colored feces, the feces may contain pus

§ Yellow skin, whites of eyes, tongue (jaundice)

Patient outcomes after the acute phase depend on various factors, especially the type of hepatitis.

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