Incubation and Infectiousness
When it comes to hepatitis E, symptoms typically appear anywhere from 15 to 60 days after exposure. In most cases, these symptoms will last for one to six weeks following infection. However, there have been instances where symptoms persisted for as long as ten weeks. Within the first few days and up to three or four weeks after the onset of hepatitis E, individuals who are infected will start to excrete the virus through their stools. It’s important to note that infected individuals can remain infectious from the onset of the illness for up to 30 days, although the exact periods of infectiousness have not been definitively determined through research.
Diagnosis
Diagnosing hepatitis E can be challenging, especially if the patient hasn’t traveled to or lived in an area with a high infection rate. This is because hepatitis E symptoms are similar to those of other viral hepatitis infections. However, doctors can conduct various tests to help determine the presence of the virus in the patient’s blood.
One common test involves checking for the presence of IgM antibodies specific to the hepatitis E virus. This test can be helpful in identifying recent infections. Additionally, doctors may use a method called RT-PCR to detect the presence of hepatitis E virus RNA in the patient’s stool or blood.
It’s important to note that testing methods for hepatitis E have not yet been approved by the FDA in the United States. However, commercial research laboratories are currently conducting serologic testing. Ongoing research aims to develop more effective diagnostic methods for hepatitis E.