Luanda, Angola- According to the World Health Organization an outbreak of deadly Marburg virus in Angola has now reached 157 cases. The outbreak is expected to affect even more people in the coming days. Health organizations from around the world are rushing aide to the war-ravaged country. A team of six experts from the U.S. Center for Disease Control and Prevention in Atlanta, Georgia, has arrived in Angola to help control the outbreak, the statement said. Marburg is a rare, severe form of hemorrhagic fever closely related to the Ebola virus. After staying dormant in the body for five to 21 days, the disease comes on suddenly with symptoms including fever, chills, headache and muscular pain or tenderness. In both diseases, victims bleed to death, often from every orifice and every organ. Symptoms become increasingly severe and may include jaundice, inflammation of the pancreas, severe weight loss, delirium, shock, liver failure and multi-organ dysfunction. Many of the symptoms of Marburg are similar to those of other infectious diseases, such as malaria or typhoid fever, diagnosing the disease can be difficult. There is no specific treatment for Marburg. But health experts recommend that patients be hospitalized in order to have their electrolytes and fluids balanced, their oxygen intake and blood pressure maintained, and any lost blood and clotting factors replaced. Marburg was first recognized in 1967, when outbreaks occurred simultaneously in laboratories in Marburg and Frankfurt, Germany, and in Belgrade, Yugoslavia. Almost all the Angola deaths have occurred in the northern province of Uige, on the border with Congo.