The U.S. Centers for Disease Control and Prevention (CDC) is warning travelers to take precaution in Equatorial Guinea and Tanzania amid outbreaks of the Marburg virus disease (MVD).
The CDC also announced that it is sending personnel from its National Center for Emerging and Zoonotic Infectious Diseases to respond to the outbreaks.
Equatorial Guinea declared an outbreak of MVD on Feb. 13, and Tanzania declared an outbreak of MVD on March 21, the CDC noted.
The WHO has recorded at least nine confirmed cases in Guinea, and another 20 probable cases, all of whom have died as of March 25. Meanwhile, in Tanzania, the WHO confirmed eight cases, five of whom have died, with the remaining three people undergoing treatments as of March 22.
People are being warned to avoid non-essential travel to the regions where the outbreak is occurring. In Equatorial Guinea, the provinces are Kie-Ntem, Centro Sur, and Litoral. In Tanzania, the Kagera region had the confirmed cases.
Kenya and Uganda are on high alert due to the recent cases in Tanzania.
MVD is often fatal and is caused by the Marburg virus, which is in the same family as the virus that causes Ebola. According to the CDC, (pdf) up to 9 out of 10 people infected with the virus will die without treatment.
It causes a viral hemorrhagic fever that brings severe symptoms within seven days that include: high fever, chills, severe headache, muscle pain, malaise, rash, sore throat, diarrhea, weakness, uncontrolled bleeding or bruising, and more.
The CDC recommends that people should watch for MVD symptoms while in the outbreak areas, and for 21 days after leaving the area. If they develop any of the symptoms, they must isolate themselves and seek medical care immediately, according to the CDC.
The virus, like Ebola, originates in bats and can spread from infected bats to people, or between people, via direct contact with blood or body fluids. It can also be transmitted by contaminated surfaces. Other non-human primates, such as chimpanzees and gorillas, can also be infected with the virus and therefore pose a threat.
The CDC advises that people who travel to Equatorial Guinea or Tanzania should:
Although no vaccines or drugs are currently authorized for MVD, infection control protocols can help prevent its transmission, and rehydration treatment to improve symptoms can improve people’s chances of survival.
Marburg outbreaks and individual cases have in the past been recorded in Angola, Congo, Kenya, South Africa, Uganda, and Ghana, according to the WHO.
The rare virus was first identified in 1967 after it caused simultaneous outbreaks of disease in laboratories in Marburg, Germany, and Belgrade, Serbia. Seven people died who were exposed to the virus while conducting research on monkeys.
The Associated Press contributed to this report.