Table of Contents
What is the source of the Ebola virus in nature?
Scientists do not know where Ebola virus comes from. Based on similar viruses, they believe EVD is animal-borne, with bats or nonhuman primates being the most likely source. Infected animals carrying the virus can transmit it to other animals, like apes, monkeys, duikers and humans.
What kind of virus is Ebola?
About Ebola Virus Disease Ebola is caused by infection with a virus of the family Filoviridae , genus Ebolavirus.
Is there a vaccination for Zika?
Many people infected with Zika virus do not get sick or only have mild symptoms. However, infection during pregnancy can cause severe birth defects. Zika is still a problem in many parts of the world. Because there is no vaccine or medicine for Zika, travelers should take steps to prevent getting Zika during travel.
What is Marburg and Ebola hemorrhagic fever?
Marburg and Ebola hemorrhagic fevers are severe, systemic viral diseases affecting humans and non-human primates. They are characterized by multiple symptoms such as hemorrhages, fever, headache, muscle and abdominal pain, chills, sore throat, nausea, vomiting and diarrhea.
What is the clinical diagnosis of Marburg virus disease (MVD)?
Clinical diagnosis of Marburg virus disease (MVD) can be difficult. Many of the signs and symptoms of MVD are similar to other infectious diseases (such as malaria or typhoid fever) or viral hemorrhagic fevers that may be endemic in the area (such as Lassa fever or Ebola). This is especially true if only a single case is involved.
What is the history of Marburg virus?
Marburg virus was first recognized in 1967, when outbreaks of hemorrhagic fever occurred simultaneously in laboratories in Marburg and Frankfurt, Germany and in Belgrade, Yugoslavia (now Serbia). Thirty-one people became ill, initially laboratory workers followed by several medical personnel and family members who had cared for them.
What is the case-fatality rate for Marburg hemorrhagic fever (MHF)?
The case-fatality rate for Marburg hemorrhagic fever is between 23-90%. For a complete listing of the case fatality rates for previous outbreaks, please see the History of Outbreaks table.