Know World’s top most dangerous and deadliest Virus

Virus is actually a tiny small infectious thing that easily replicates inside the living cells of other organisms, which can infect all types of life forms. Virus could be found easily everywhere and anywhere, the only thing we can do is to take precautions and uttermost care.

Know World’s top most dangerous and deadliest Virus


Below is the list of few most deadliest and dangerous viruses that exists on earth.


Marburg virus

Marburg virus is a hemorrhagic fever virus. This is an extremely dangerous virus and has been rated as Risk Group 4 Pathogen by the WHO.

This virus was first understood in year 1967. This virus was first found in the German cities (Marburg and Frankfurt). On an average out of 100, 60% people who are infected with this virus didn’t survive for long.




Ebola virus is one of the five known viruses under the genus Ebolavirus. From 2013 – 2015 there are more than 30K confirm suspects and more than 13K deaths due to thi virus.

The symptoms of Ebola virus closely resembles of that of Malaria. Main cause of Ebola Virus is use of unsterilized needles and close personal body contact. They can easily transfer through the body fluid. There is no confirmed vaccination for this virus which could work till date, but the VSV- EBOV vaccine trial in Guinea published in July 2015 is giving very high hope.




Rabies causes acute inflammation of the brain in humans. Early symptoms of Rabies are fever and tingling at the site of exposure. Further these symptoms increases and new symptoms occur like violent movements, uncontrolled excitement, and fear of water, confusion and consciousness. If not treated and taken care immediately, it always leads to death.

Rabies virus enters the body when infected animal scratches or bites the body. It could also enter the body if body comes directly in contact with fluid of the infected body and if it enters non-infected body. Mostly Dogs and Bats are responsible for having Rabies worldwide.

September 28 is World Rabies Day, which promotes the information, prevention, and elimination of the disease.




Human Immunodeficiency virus, commonly know as HIV is a lentivirus that cause AIDS (Acquired immunodeficiency syndrome). The virus attacks the immune system of the body and infects it. If not treated well infected person soon dies.

The virus enters the body through fluid, and infects the immune system immediately. The disease was first observed in 1981 in the United States.

This virus is responsible or millions of death worldwide. Many people didn’t know that they are infected as at initial stage no symptoms are being observed, later on slowly it infects the entire body, which is actually very difficult to recover.




Smallpox is an infectious disease caused by “Variola” virus. This virus affects the blood vessels of the skin, mouth and throat. Major infection could cause to blindness and even death.

WHO campaign of eradication of this virus is really successful as the last case of “Rinderpest” virus was in 2011.

There are two clinical forms of the virus, one is Variola major which cause extensive rash in the skin and very high fever, whereas Variola minor gives lesser severe disease.




Hantavirus” – name of this virus is originated from the “Hantan River”, in South Korea, where the first cases of this virus was observed. The virus normally infects rodents (mouse) and does not cause disease in these hosts.

The virus cause severe illness and fever. Respiratory illness is one of the major symptoms of this virus and if not treated properly it can damage the entire lungs.




It is commonly known as “FLU”, which is actually an infectious disease caused by the Influenza virus. Most common symptoms of this virus are fever, headache, running nose, muscle pain, cough, sore throat and always feeling tired. The symptoms doesn’t exists till long, as immune system of body recovers within a week’s time, however cough could last for more than 2 weeks.

Severe attack of this virus may lead to asthma or heart attack as well. Virus is very infectious and spreads very easily from one infected person to another. This virus can travel easily in air (short distance though), and enters the body, through mouth, nose and eyes.

Regular hand wash reduces the risks of having this virus to almost 60%. And wearing surgical mask, could further reduce the risk to another 30%. Approx 1 million deaths are confirmed due to this virus.





Dengue was first reported in year 1950 in Thailand and Philippines, now has spread to 40% of the entire world. Mosquito bites are main cause of this virus and it effects almost 50 to 100 million people every year. If treated it is curable but at times people die due to extreme infection.

Treatment of acute dengue is easily available these days, using either oral or intravenous dehydration for mild or moderate disease, blood transfusion for more severe cases.


  • Article By :
    Nitisha is an Engineer plus an MBA, with rich corporate experience in Digital Marketing. She has a passion for content marketing and understanding basic things which are essential and people didn’t know or noticed it. In today’s world, the information is easily available over internet, but is scattered and at times very confusing. Be Your Google is an honest attempt to inform people what they need to know. Because we believe that you should know everything.

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