Angioimmunoblastic T-cell lymphoma (AITL) is a rare lymphoid malignancy with dismal prognosis. We conducted a large population-based study using the Surveillance, Epidemiology, and End Results (SEER) database (1973â2010) to determine the temporal survival trends and prognostic factors of AITL patients.
Hepatitis B is considered to be contagious between people. Generally the infectious agent may be transmitted by saliva, air, cough, fecal-oral route, surfaces, blood, needles, blood transfusions, sexual contact, mother to fetus, etc. Hepatitis B, although infectious, is not a genetic disease.It is not caused by a defective or abnormal gene. The contagious disease, Hepatitis B, can be transmitted: 1  by sexual conduct between people. 2  from person to person by blood. 3  from the mother to her fetus.he contagious disease, Hepatitis B, can be transmitted: 1  by sexual conduct between people. 2  from person to person by blood. 3  from the mother to her fetus.
Before tests for HCV became available in the 1990s, HCV was often transmitted by blood transfusions. While HCV is not as contagious as hepatitis B, there is currently no vaccine to prevent infection. Hepatitis C infection is a common cause of chronic liver disease in North America.