LONDON (Reuters) - A compound isolated from the root of the liquorice plant could be more effective than current treatments for SARS (news - web sites), the virus that has killed 780 people worldwide, German scientists said on Friday. Glycyrrhizin, or liquorice root, is already given to patients suffering from HIV (news - web sites) and hepatitis C. Researchers at Frankfurt University Medical School now believe it could help to combat SARS. "Our findings suggest that glycyrrhizin should be assessed for treatment of SARS," Jindrick Cinatl said in a report in The Lancet medical journal. SARS, which first broke out...