A recent development in Tanzania has confirmed the presence of the deadly Marburg virus in the African country. The World Health Organization initially suspected the virus to be the cause behind eight deaths in the northwestern Kagera region, which Tanzanian officials disputed at first. However, President Samia Suluhu Hassan announced on Monday that a human sample tested positive for the Marburg virus, confirming its presence.
The Marburg virus, first recognized in 1967, causes a severe type of hemorrhagic fever that affects humans and non-human primates. Similar to the Ebola virus, symptoms of Marburg virus include fever, muscle pain, diarrhea, and vomiting. The disease progresses rapidly, leading to severe blood loss and ultimately death within about a week. The fatality rate of Marburg virus outbreaks ranges from 24% to 88%, with an average of about 50%.
The virus is transmitted from certain fruit bats to humans and other primates. People can contract the disease by spending time in caves where bats reside or through contact with infected monkeys. Transmission occurs through direct contact with infected bodily fluids, usually once symptoms are present. Healthcare workers are particularly at risk due to handling contaminated materials and equipment.
The WHO considers Tanzania and the surrounding region to be at high risk for the spread of the Marburg virus. Kagera’s status as a transport hub raises concerns about potential spread to neighboring countries like Rwanda, Uganda, Burundi, and the Democratic Republic of the Congo. Although the global risk is currently low, past outbreaks have been recorded in various African regions, with some cases even reported in Europe.
Despite the high fatality rate of the Marburg virus, international cases have been limited. In 2008, a tourist visiting Uganda was diagnosed with the virus upon returning home but did not transmit it to anyone else. The disease’s mode of transmission, requiring direct contact with infected bodily fluids, reduces the risk of widespread infection compared to more easily transmissible diseases like COVID-19.
Efforts are underway to control the outbreak in Tanzania, with the WHO collaborating with local authorities to monitor, test, and treat the disease while raising awareness in at-risk communities. As the situation unfolds, vigilance and prompt action will be crucial in containing the spread of the Marburg virus in the region.
