"Having an infectious hepatitis C virus clone available will greatly facilitate studies on virus evolution, pathogenesis and host immune response, " said Dr . Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, which helped support the research.
22.
Such cases of cirrhosis are usually due to infection caused by infectious hepatitis ( usually hepatitis B or hepatitis C, though there are other strains ), or because of degenerative fatty liver disease ( which can be especially severe in those with alcoholism ).
23.
That explains why, for instance, hepatitis B is more easily transmitted than HIV . A milliliter of blood ( about a thousandth of a quart ) can contain upwards of 100 million infectious hepatitis B viruses, but only a few hundred to a few thousand HIV particles.
