A comet is made up of material that gets evaporated easily by the Sun, so comets lose mass with each passage around the Sun. As much as one percent of their masses can be blown away. Comets may start out very icy, but this is not how they'll look for long, since the ice is the first thing to go.
Classified as toxic or drug-induced (idiosyncratic) hepatitis, non viral hepatitis is an inflammation of the liver. Most patients recover from this illness, although a few develop fulminating hepatitis or cirrhosis.
Rarely, viral hepatitis caused by hepatitis A can lead to liver failure, coma and death. Hepatitis A does not cause chronic or persistent infection of the liver. Once a person has recovered from hepatitis A, he or she is immune to reinfection with hepatitis A for life. This is true because effective antibodies are developed against the hepatitis A virus.