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Six Viruses that plagued humanity in the 21st Century before Corona Virus

Following the outbreak of Covid-19 popularly known as corona virus, let us quickly look at six of the most dangerous pandemic causing virus that have put the world on emergency alert in the 21st century.


Ebola virus outbreak in 2014 in West Africa became the largest outbreak since the discovery of the virus in 1976 resulting in the death of more than 11,000 people. Scientists do not yet know where the rare yet fatal Ebola virus comes from, but they believe that it is animal born, possibly fruit bats.

Major symptoms of Ebola virus include fever, fatigue, muscle pain, headache, sore throat, vomiting, diarrhea, impaired kidney, liver function , rash and both internal and external bleeding. The average case fatality is approximately 50%, according to the World health organization.


Davies are largely believed to have been originated from dog bites and bats. After contact with a rabid animal, it is important to wash the wound with soap and water, as infection usually occurs upon exposure of the mucous membrane to saliva.

Individuals with rabies may exhibit signs of hyperactivity, excitable behavior, hydrophobia, and aerophobia, with death occurring after a few days due to cardio respiratory arrest.Those with paralytic rabies which accounts for 20% of all human cases gradually become paralyzed, starting at the wound site, followed by coma and eventually death.


Marburg virus was discovered in 1967. The virus was as a result of Germans exposure to green monkeys in Uganda. Although Bats are thought to be the natural reservoir for the Virus, this hypothesis is yet to be confirmed.

Marburg virus has a 90% mortality rate as no antiviral therapy or other vaccine exists for the Marburg virus.


The human immunodeficiency virus is one of the most deadly viruses of modern times. more than 35 million people have died of acquired immunodeficiency syndrome brought by HIV infection since the disease was recognized in the 1980s. HIV targets the immune system and weakens people's defenses against infections and some types of cancer. It can be transmitted through bodily fluids of infected individuals, such as blood, breast milk, semen and vaginal secretions. There is no cure for HIV infection. However, effective antiretroviral drugs can control the virus and help prevent transmission.


This influenza-like disease is followed by acute respiratory failure. Deer mice urine inhalation or feaces serve as reservoirs for the virus. The virus may be transmitted if a rodent with the virus bites a human, fortunately it cant be spread by human-to-human contact.


Discovered in 1969 in Lassa, Borno state; Nigeria. This pathogen causes hemorrhagic fever and multi organ failure. Mortality due to the virus is high (15% to 50%), with death due to vascular collapse. In areas where the virus is endemic, asymptomatic infection is common. The virus is most commonly transmitted by exposure to the urine of infected rodent. The disease can also be spread via inhalation of air contaminated with infected rodent secretions.

Content created and supplied by: Fätäl_Çräfts (via Opera News )

Corona Covid-19 EBOLA VIRUS Ebola West Africa


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