The ONLY human disease caused by VIRIODS!!

Hepatitis A?? B?? C?? THE CORRECT ANSWER SHOULD BE HEPATITIS D!!! This disease was previously attributed to a defective virus called the delta agent. However, it now is known that the delta agent is a viroid enclosed in a hepatitis B virus capsid. For hepatitis D to take place, there must be simultaneous infection of a cell with both the hepatitis B virus and the hepatitis D viroid. There is extensive sequence complementarity between the hepatitis D viroid RNA and human liver cell 7S RNA. The hepatitis D viroid causes liver cell death via sequestering this 7S RNA and or cleaving it. Hepatitis D viroid can only enter a human liver cell if it is enclosed in a capsid that contains a binding protein. It obtains this from the hepatitis B virus. The delta agent then enters the blood stream and can be transmitted through blood or serum transfusions.