Showing posts with label Virology. Show all posts
Showing posts with label Virology. Show all posts

Monday, July 25, 2011

Hepatitis C Infection - 3D animation



Hepatitis C is an infectious disease affecting the liver, caused by the hepatitis C virus (HCV).The infection is often asymptomatic, but once established, chronic infection can progress to scarring of the liver (fibrosis), and advanced scarring (cirrhosis), which is generally apparent after many years. In some cases, those with cirrhosis will go on to develop liver failure or other complications of cirrhosis, including liver cancer or life threatening esophageal varices and gastric varices.The hepatitis C virus is spread by blood-to-blood contact. Most people have few, if any symptoms after the initial infection, yet the virus persists in the liver in about 85% of those infected. Persistent infection can be treated with medication, peginterferon and ribavirin being the standard-of-care therapy. Overall, 51% are cured. Those who develop cirrhosis or liver cancer may require a liver transplant, and the virus universally recurs after the transplant takes place.An estimated 180 million people worldwide are infected with hepatitis C. Hepatitis C is not known to cause disease in other animals. No vaccine against hepatitis C is currently available. The existence of hepatitis C (originally "non-A non-B hepatitis") was postulated in the 1970s and proven in 1989.It is one of five known hepatitis viruses: A, B, C, D, and E.

Sunday, July 17, 2011

HIV virus replication 3D video




Human immunodeficiency virus (HIV) is a lentivirus (a member of the retrovirus family) that causes acquired immunodeficiency syndrome (AIDS),a condition in humans in which progressive failure of the immune system allows life-threatening opportunistic infections andcancers to thrive. Infection with HIV occurs by the transfer of blood, semen, vaginal fluid, pre-ejaculate, or breast milk. Within these bodily fluids, HIV is present as both free virus particles and virus within infected immune cells. The four major routes of transmission are unsafe sex, contaminated needles, breast milk, and transmission from an infected mother to her baby at birth (perinatal transmission). Screening of blood products for HIV has largely eliminated transmission through blood transfusions or infected blood products in the developed world.

Tuesday, March 15, 2011

Path to an effective HIV vaccine


Creating an effective HIV vaccine is a task of the utmost importance that facing many obstacles based on the complex nature of the virus. Research emerging from the University of Texas Medical School led by Dr. Sudhir Paul.

HIV lifecycle animation

Midaortic Syndrome - Video

What is midaortic disorder? Midaortic disorder could be a exceptionally uncommon condition in which portion of the aorta (the heart...