| Theme | Update on Hepatitis E | |
|---|---|---|
| Title | Epidemiology of Acute Viral Hepatitis and Hepatitis E in Japan | |
| Publish Date | 2006/05 | |
| Author | Koji Yano | National Hospital Organization Nagasaki Medical Center |
| Author | Yoko Tamada | National Hospital Organization Nagasaki Medical Center |
| Author | Hiroshi Yatsuhashi | National Hospital Organization Nagasaki Medical Center |
| [ Summary ] | Hepatitis A, which accounts for about 40 % of all hepatitis cases, is the leading cause of acute viral hepatitis in Japan, followed by hepatitis B, non-ABC hepatitis, and hepatitis C. A survey on acute hepatitis by the national hospital study group indicated that hepatitis B and C associated with medical practices, such as blood transfusion, have been controlled. On the other hand, hepatitis A and E, which are transmitted by fecal-oral modes, and hepatitis B, which is associated in sexual transmission, should be paid increased attention. The number of cases of domestically acquired hepatitis E has been increasing therefore, caution must be taken, especially in the northern parts of Japan, where domestic hepatitis E is endemic. An association of genotype 4 strains and severity of hepatitis has been suggested. |
|