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In recent weeks, Nigerians have been gripped with fear over the scourge of the dreaded Ebola Virus. As the Federal government intensifies measures to ensure that it does not spread in the country, it is pertinent to enlighten the people on the virus. The scourge of Ebola virus began with a just a handful of cases in Guinea in March. But it spread quickly to two other countries and is now the deadliest outbreak virus on record. At least 759 people in Guinea, Sierra Leone and Liberia have been infected by Ebola since its symptoms were first observed four months ago, according to the World Health Organization (WHO). Out of this number, 467 of them have died. This implies that it has a mortality rate of 61.5 percent.

The WHO says “drastic action is needed” to contain the virus, which has spread from rural areas to cities in West Africa. It has dispatched teams of experts to the sub-region and has been holding talks with the health ministers from 11 countries about what to do next.

What is Ebola?

Medicines Sans Frontieres (MSF) describes Ebola as “one of the world’s most deadly diseases.” ‘1t is a highly infectious virus that can kill up to 90 percent of the people who catch it, causing terror among infected communities,” it says. There is also no vaccination against it. Of Ebola’s five sub-types, the Zaire strain – the first to be identified – is considered the most deadly. The WHO said preliminary tests on the Ebola virus in Guinea in March suggested that the outbreak there was this strain, although that has not been confirmed.

The Ebola virus causes viral hemorrhagic fever (VHF), which according to the US Center for Disease Control and Prevention (CDC), refers to a group of viruses that affect multiple organ systems in the body and are often accompanied by bleeding. The virus is named after the Ebola River in the Democratic Republic of Congo (formerly Zaire), where one of the first outbreaks occurred in 1976. The same year there was another outbreak in Sudan. The WHO says there are five different strains of the virus — named after the areas they originated. Three of these have been associated with large outbreaks of hemorrhagic fever in Africa. These are the Bundibugyo — an area of Uganda where the virus was discovered in 2007 — Sudan and Zaire sub-types. There has been a solitary case of Cote d’Ivoire Ebola. This subtype was discovered when a researcher studying wild chimpanzees became ill in 1994 after an autopsy on one of the animals. The researcher  later recovered. Finally, Reston Ebola is named after Reston in the US state of Virginia, where this fifth strain of the Ebola virus was identified in monkeys imported from the Philippines.

The CDC says while humans have been infected with Ebola Reston, there have been no cases of human illness or death from this sub-type.

Mode of transmission

Ebola is a killer disease that is transmitted through body secretions such as sweat, blood, saliva, mucous, breast secretion, tears, urine, and sexual transmission with an infected person.

The symptoms

Early symptoms of the Ebola virus include sudden onset of fever, weakness, muscle pain, headaches and a sore throat. In pregnant women, abortion (miscarriage) and heavy vaginal bleeding are common Ebola symptoms.  These symptoms can appear between two to 21 days after infection. The WHO says these non- specific early symptoms can be mistaken for signs of diseases such as malaria, typhoid fever, meningitis or even the plague. MSF says some patients may also develop a rash, red eyes, hiccups, chest pains and difficulty breathing and swallowing.

The early symptoms progress to vomiting, diarrhea, impaired kidney and liver function and sometimes internal and external bleeding. Ebola can only be definitively confirmed by five different laboratory tests.


There are no specific treatments for Ebola. MSF says patients are isolated and then supported by health care workers. “This consists of hydrating the patient, maintaining their oxygen status and blood pressure and treating them for any complicating infections,” it says. There have been cases of healthcare workers contracting the virus from patients and the World Health Organization has issued guidance for dealing with confirmed or suspected cases of the virus.

Careers are advised to wear impermeable gowns and gloves and to wear facial protection such as goggles or a medical mask to prevent splashes to the nose, mouth and eyes. MSF says it contained a 2012 outbreak in Uganda by placing a control area around its treatment renter. An outbreak is considered over once 42 days – double the incubation period of the disease – have passed without any new cases.

The spread

The WHO says it is believed that fruit bats may be the natural host of the Ebola virus in Africa, passing on the virus to other animals.

Humans contract Ebola through contact with the bodily fluids of infected animals. The WHO says in Africa there have been documented cases of humans falling ill after contact with dead or ill chimpanzees, gorillas, fruit bats, monkeys, forest antelope and porcupines. It says Ebola later spreads from human-to-human via contact with bodily fluids containing the virus. The virus can be spread through contact with an object contaminated with infected secretions.

Direct contact with the corpses of Ebola victims can also result in infection and the virus can be transmitted via infected semen up to seven weeks after clinical recovery. MSF says while the virus is believed to be able to survive for some days in liquid outside an infected organism, it is fragile and chlorine disinfection, heat, direct sunlight, soaps and detergents can kill it. MSF epidemiologist Kamiliny Kalahne says outbreaks usually spread in areas where hospitals have poor infection control and limited access to resources such as running water.  ‘’People who become sick with it almost always know how they got sick: because they looked after someone in their family who was very sick – who had diarrhea, vomiting and bleeding – or because they were health staff who had a lot of contact with a sick patient,” Kalahne says.

Can Ebola be prevented?

Prevention is the key. People can prevent it by washing   their hands often with soap and water. Sanitizer is a good alternative. Avoid unprotected contact with people with suspicious signs and places of outbreak. Watch out for the warning signs that mimic malaria symptoms. As always, wash your fruits and vegetables before cooking. Report any suspicious case to the nearest Health Care Centre, Local Government office or the State Ministry of Health.


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