Hepatitis A

By: Maya Whiteley

Symptoms

Pain Areas: in abdomen, joints, or muscles

Gastrointestinal: diarrhea, nausea, or vomiting

Whole Body: fatigue, fever, or loss of appetite

Also Common: dark urine, itching, weight loss, or yellow skin and eyes

Causes

The hepatitis A virus usually is spread when a person eats contaminated fecal matter, even a small amount. It infects liver cells and causing inflammation. The inflammation can effect liver function along with cause other signs of hepatitis a.

How it Replicates

Replicates using the lysogenic cycle. First the virus infects the host cell and then inserts its genetic material into the nucleus and it becomes part of the genetic material of the cell. Then the cell replicates making more viruses with the genetic material, and many cell divisions can occur. The cell then enters the lytic cycle which is where symptoms start to show up. The host cell makes so many viruses that the cell explodes and the cycle starts all over again.
Big image

Treatment

Clears up by itself in a few months. Rest and hydration can help, but alcohol should be avoided. An anti viral can be prescribed. The anti viral is called

Prevention

Hepatitis a vaccine, good hygiene, high quality water, and washing hands often are good ways to prevent getting the virus.

Immune Cells

Adaptive immune cells fight the virus.
Big image