Two people who were not related to each other died of the Marburg virus in June. Word of a new outbreak of a lethal disease caused by viral infections added to the concerns of a public weary from battling the coronaviruses epidemic.

Doctors and public health experts in the country immediately began searching for anyone who had been exposed and trying to contain the spread of the disease. There was no indication that the virus had spread further according to health researchers.

The first cases of Marburg were linked to African green monkeys imported from Uganda. According to the World Health Organization, there have been cases in other countries. The first case in that country was recorded last month.

Health experts said the Marburg virus is the cause of Marburg virus disease in humans.

ImageMarburg virus particles (in blue), both budding and attached to the surface of infected cells (in yellow).
Marburg virus particles (in blue), both budding and attached to the surface of infected cells (in yellow).Credit...Photo by: IMAGE POINT FR/NIH/NIAID/BSIP/Universal Images Group via Getty Images
Marburg virus particles (in blue), both budding and attached to the surface of infected cells (in yellow).

Medical experts said there are no vaccines or treatments for the disease, but hydrating patients and treating their symptoms can improve their chances of survival.

According to the W.H.O., the disease is similar to the one in Marburg, but it is not caused by the same virus. According to the Centers for Disease Control and Prevention, bats and nonhuman primate are likely to carry the disease. Marburg's case fatality rates ranged from 24 to 88 percent, depending on which strain people contract and the management of cases, according to the W.H.O.

According to the W.H.O., the Marburg virus can be spread through direct contact with bodily fluids from people with the disease.

The blood's ability to clot can be interfered with if Marburg is present. The W.H.O. states that the symptoms begin with a high temperature, headaches, and a feeling of weakness and weakness in the limbs.

ImageA member of the World Health Organization taking an oral sample from a woman in Angola in 2005. She tested negative, but her grandmother, sister and ex-husband died of Marburg virus disease.
A member of the World Health Organization taking an oral sample from a woman in Angola in 2005. She tested negative, but her grandmother, sister and ex-husband died of Marburg virus disease.Credit...Photo by Christopher Black/WHO/AFP via Getty Images
A member of the World Health Organization taking an oral sample from a woman in Angola in 2005. She tested negative, but her grandmother, sister and ex-husband died of Marburg virus disease.

According to Dr. John Amuasi, who leads the global health and infectious disease research group, mortality is very high. There isn't a Marburg.

The health organizations said that a patient can confirm their condition with a test.

ImageSoldiers in biohazard suits burying two bodies during a 2005 Marburg outbreak in Uige, Angola. The dead were not known to have had the virus.
Soldiers in biohazard suits burying two bodies during a 2005 Marburg outbreak in Uige, Angola. The dead were not known to have had the virus.Credit...Photo by Evelyn Hockstein for The New York Times
Soldiers in biohazard suits burying two bodies during a 2005 Marburg outbreak in Uige, Angola. The dead were not known to have had the virus.

The Marburg virus disease has only been reported in two countries this year. The people who contracted the virus were not related to each other. Both of them passed away.

Men who worked on farms were the patients. One of the two men was a 26 year old farmhand who had recently been to a different part of the country for work. The men had not been in the same place.

There are fruit bats in the region.

ImageA fruit bat captured in 2018 by C.D.C. scientists in Queen Elizabeth National Park in Uganda.
A fruit bat captured in 2018 by C.D.C. scientists in Queen Elizabeth National Park in Uganda.Credit...Photo by Bonnie Jo Mount/The Washington Post via Getty Images
A fruit bat captured in 2018 by C.D.C. scientists in Queen Elizabeth National Park in Uganda.

According to the C.D.C., more than 200 people died in an outbreak in Angola from 2004 to 2005 and more than 100 died in the Democratic Republic of Congo from 1998 to 2000.

According to the C.D.C., there were four cases of the disease in Uganda in 2017: three of which died.

Dr. Francis Kasolo, the W.H.O. representative to the country, said that experts wanted to know how the two people contracted the virus.

The current investigation is looking at more than just contacts. We are going to look at the medical records in these areas to see if there were any unusual cases. We are not going to say that this is a one-off event.

The C.D.C. is working with local health authorities to assist with testing and epidemiological investigations.

People in the US are not at high risk for exposure.

He said there was a very low risk that travelers would come into the country with Marburg.

The public health response has been transparent. In the 21 days after the deaths of the two people, contacts were monitored.