The most dangerous viruses in the world for humans

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The most dangerous viruses in the world for humans

Of all the organisms on the planet, pathogens have the largest coverage and abundance, including bacteria, sticks, and, of course, viruses that are invisible to the human eye. The latter are the causative agents of diseases that differ in symptoms, the nature of the course and severity.
The most dangerous viruses in the world for humans
Identifying the most dangerous virus for a person is quite difficult, since different approaches to analysis should be applied. For example, there are pathogens that change the overall mortality rate of a population. Others lead to the death of already infected people. Still others kill the owner faster than he manages to spread them to other people. For example, with a death rate of up to 3%, the Ebola virus and the pandemic of the Spanish flu killed over 100 million people. And then there is a historical approach to assessing the harmfulness of the virus. It demonstrates which microorganism has killed the most people throughout human history.

We offer you a list of 10 of the most dangerous viruses on the planet, which annually claim hundreds and thousands of human lives. Add some statistics and figures, as well as data on the characteristic symptoms for a viral disease of one type or another.

1.

Arboviruses of the Flaviviridae family
The most dangerous viruses in the world for humans
These dangerous pathogens cause a specific disease - Dengue fever. The patient is worried about acute pain in the musculoskeletal system (joints, especially the knee, spine). The patient also notes hyperthermia, high fever and fever, nausea and vomiting. Often there is an itchy rash on the body. It is known that if the disease becomes severe, then in half of the cases it is fatal. You can pick up an arbovirus through an insect bite (tick, mosquito, etc.). Before traveling to the zone of spread of the virus, take care of preventive vaccinations and other methods of personal protection.

2.

Flu virus
The most dangerous viruses in the world for humans
In the modern world, the “common cold” does not cause people to panic, as it is easily treatable. Simply put, human immunity is resistant to many strains of the respiratory tract infection.But few people know that there are more than 2 thousand variants of the virus in the world, which are classified by serotypes (B, A, C) and strains. Serotype A is life threatening, as it causes massive epidemics and even pandemics. Every year, up to half a million people (most often preschoolers and the elderly) die from a seasonal outbreak of the flu. The virulent strain of the virus caused the so-called "Spanish flu", which in 1918 affected about a third of the world's population, killing about 100 million patients. At the same time, people with strong immunity were most at risk, which ultimately provoked the so-called "cytokine storm."

3.

Hepatitis C virus (HCV)
The most dangerous viruses in the world for humans
A specific disease can be masked by symptomatology for other pathologies, so a person can for a long time be unaware of the presence of a virus in the body. So the disease gradually becomes chronic, which provokes liver failure and, as often happens, death. The virus takes about 350 thousand patients annually in developing countries. Relentless statistics states that there are 200 million in the world.carriers of this dangerous microorganism. Unfortunately, the disease does not respond to therapy, and an effective vaccine has not been developed. Infection with hepatitis C occurs through the blood, and the source is often medical and cosmetic tools, unprotected sexual intercourse, and non-compliance with the rules of hygiene.

4.

Hepatitis B virus (HBV)
The most dangerous viruses in the world for humans
This hepatitis virus leaves the patient a chance for recovery, but in 20-30% of cases, it still progresses to the chronic form, causing cirrhosis or liver cancer. In the year the "reaper" takes about 700 thousand human lives. As well as the previous type of hepatitis virus, it provokes an asymptomatic disease that slowly attacks the liver for years. Most often, the disease is diagnosed in children. The carriers of the virus may not suffer the consequences, but actively transfer it to others. The virus is characterized by resistance to temperature fluctuations. It is transmitted through blood drops by domestic means, as well as through injections, tools, sharp devices, sex relations.

5.

Rabies virus
The most dangerous viruses in the world for humans
It occurs in warm-blooded animals and is transmitted from them to humans. Causes rapid and irreversible damage to the central nervous system.The virus is transmitted through the saliva of an infected animal during a bite. The temperature rises to subfebrile indicators, the patient complains of sleep disturbances, notes attacks of aggression and hallucinations, paranoid delusions. Followed by paralysis of the limbs and eye muscles, respiratory system, which leads to death. Unfortunately, the symptoms of the disease appear already at the stage when the virus enters the brain and causes the degradation of nerve cells. Only a vaccine made as soon as possible after the bite of a stray animal can save life.

6.

Rotavirus
The most dangerous viruses in the world for humans
It is a group of viruses that is transmitted by the fecal-oral route. Causes bouts of acute diarrhea, dehydration and is observed mainly in young children. Despite the available methods of therapy, the disease annually takes about 450 thousand preschoolers (mostly residents of underdeveloped countries). Rotavirus is a disease of “dirty hands”, therefore, the best prevention is to observe the rules of personal hygiene, especially after visiting public places.

7.

Ebola virus
The most dangerous viruses in the world for humans
The microorganism causes hemorrhagic fever.It is transmitted through biological fluids, infected tissues and blood. Accompanied by a sharp rise in temperature, aching muscles, lethargy, muscle spasms, migraines, and sore throat. Nausea and vomiting, indigestion, skin rashes, kidney and liver dysfunction may also occur. In severe form, marked external and internal hemorrhages. Mortality from Ebola in 2015 was 42% of the cases.

8.

Variola virus
The most dangerous viruses in the world for humans
Surviving patients can be seen from afar - the skin is dotted with numerous scars. The first symptoms of black pox are fever and a rash on the body (purulent blisters). Complications include headaches, vertigo, pain in the sacral-lumbar region, nausea and vomiting. In the 20th century, an epidemic claimed about 300-500 million lives. The last case was registered in 1977. Climate change in recent years can lead to the return of the disease. By the way, the smallpox virus affects only humans.

9.

Virus of the Flaviviridae Family
The most dangerous viruses in the world for humans
The pathogen is transported by mosquitoes living in zones of South America and on the African continent. Once in the body, the virus causes a "yellow fever", which is accompanied by jaundice.Since the 1980s, the spread of the disease has increased, which is explained by the deterioration of human immunity, climate change. With a severe form of the disease, the liver does not cope with the function and death occurs. Tourists visiting the above countries are advised to vaccinate.

10.

AIDS virus
The most dangerous viruses in the world for humans
It is considered the most dangerous virus that is transmitted through biological fluids and blood. The most common causes of the spread of HIV are unsterilized medical and cosmetic devices, drug addiction (syringe reuse), promiscuous sex. The average life expectancy of an infected person without adequate therapy is 9-11 years.

Here such dangerous microorganisms are constantly with us and threaten life. To prevent infection, get vaccinated in time, follow personal hygiene rules, use barrier methods of protection and avoid contact with infected people.

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  • The most dangerous viruses in the world for humans

    The most dangerous viruses in the world for humans

    The most dangerous viruses in the world for humans

    The most dangerous viruses in the world for humans

    The most dangerous viruses in the world for humans

    The most dangerous viruses in the world for humans

    The most dangerous viruses in the world for humans

    The most dangerous viruses in the world for humans

    The most dangerous viruses in the world for humans

    The most dangerous viruses in the world for humans

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