<prompt> All of the following statements about Hepatitis B arc true, ExceptVeical Transmission is more common than horizontal transmission in non-endemic areasAge of onset determines prognosisPeriod of communicability lasts several monthsVirus can be detected in blood one month before jaundice  <response>: Answer is A Veical Transmission is more common than horizontal transmission in non-endemic areas Veical transmission is more common that horizontal transmission in endemic Areas not in non-endemic areas Age of onset determines prognosis The outcome of HBV infection is age dependent. The development of chronic hepatitis B is inversely related to age and occurs in approximately 95 of persons infected perinatally, in 80 of persons infected in early childhood and in 510 infected after 5 years of age - Park 20th 188 Period of communicability lasts several months The period of communicability is usually several months. The virus is present in the blood during the incubation period for a month before jaundice and acute phase of disease - Park 201h187 Virus can be detected in blood one month before jaundice Circulating HBsAg precedes elevation of aminotransferases and clinical symptoms jaundice by 2-6 weeks and remains detectable during the entire icteric or symptomatic phase of acute Hepatitis B and beyond - Harrison s 17th 1933 Veical transmission is more common in Endemic areas Perinatal transmission veical is uncommon in Noh America and Europe Non-Endemic areas hut occurs with great frequency and is the most common mode of HBV perpetuation in the Far East and developing countries Endemic areas - Harrison s 17th1940,1947 