24 Most Dangerous and Deadly Viruses

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Viruses are acellular microorganisms that can only grow offspring in living cells. They are formed by consisting of nuclear acids and proteins, outside the body they are dead-like but are alive inside the body. They can be assembled as crystals.A virus cannot reproduce without any live medium. It can remain dormant for hundreds of years and whenever it comes in contact with a living medium or holder, the cell of that organism penetrates and becomes sick.Once the virus enters the living cell, it changes the genetic structure of the cell’s original RNA and DNA with its genetic information, and the infected cell starts reproducing the infected cells just like it. Viruses are dead outside the cell, but when they enter the cell, their life cycle starts.


1

Coronavirus

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4 Votes
कोरोनावायरस Coronavirus

Coronaviruses are a group of related RNA viruses that cause diseases in mammals and birds. In humans and birds, they cause respiratory tract infections that can range from mild to lethal. Mild illnesses in humans include some cases of the common cold (which is also caused by other viruses, predominantly...Read More

2

Ebola virus

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2 Votes
इबोला वायरस Ebola virus

Ebola, also known as Ebola virus disease (EVD) or Ebola hemorrhagic fever (EHF), is a viral hemorrhagic fever of humans and other primates caused by ebolaviruses. Signs and symptoms typically start between two days and three weeks after contracting the virus with a fever, sore throat, muscular pain,...Read More

3

Marburg virus

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2 Votes
मारबर्ग वाइरस Marburg virus

Marburg virus is a hemorrhagic fever virus of the Filoviridae family of viruses and a member of the species Marburg marburgvirus, genus Marburgvirus. Marburg virus (MARV) causes Marburg virus disease in humans and nonhuman primates, a form of viral hemorrhagic fever. The virus is considered to be...Read More

MERS-CoV

Middle East respiratory syndrome (MERS), also known as camel flu, is a viral respiratory infection caused by the MERS-coronavirus (MERS-CoV). Symptoms may range from none, to mild, to severe. Typical symptoms include fever, cough, diarrhea, and shortness of breath. The disease is typically more severe...Read More

5

West Nile virus

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1 Votes
वेस्ट नाइल वायरस West Nile virus

West Nile virus (WNV) is a single-stranded RNA virus that causes West Nile fever. It is a member of the family Flaviviridae, specifically from the genus Flavivirus, which also contains the Zika virus, dengue virus, and yellow fever virus. West Nile virus is primarily transmitted by mosquitoes, mostly...Read More

6

Rabies

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0 Votes
रेबीज़ Rabies

Rabies is a viral disease that causes inflammation of the brain in humans and other mammals. Early symptoms can include fever and tingling at the site of exposure. These symptoms are followed by one or more of the following symptoms: violent movements, uncontrolled excitement, fear of water, an inability...Read More

7

Influenza

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इनफ़्लुएंज़ा 3

Influenza, commonly known as “the flu”, is an infectious disease caused by an influenza virus. Symptoms can be mild to severe. The most common symptoms include: high fever, runny nose, sore throat, muscle and joint pain, headache, coughing, and feeling tired. These symptoms typically begin...Read More

8

Dengue

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डेंगू Dengue

Dengue fever is a mosquito-borne tropical disease caused by the dengue virus. Symptoms typically begin three to fourteen days after infection. These may include a high fever, headache, vomiting, muscle and joint pains, and a characteristic skin rash. Recovery generally takes two to seven days. In...Read More

9

Rotavirus

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रोटावाइरस Rotavirus

Rotavirus is a genus of double-stranded RNA viruses in the family Reoviridae. Rotaviruses are the most common cause of diarrhoeal disease among infants and young children. Nearly every child in the world is infected with a rotavirus at least once by the age of five. Immunity develops with each infection,...Read More

10

SARS-CoV

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सार्स कोरोनावाइरस 4

Severe acute respiratory syndrome–related coronavirus (SARSr-CoV or SARS-CoV) is a species of coronavirus that infects humans, bats and certain other mammals. It is an enveloped positive-sense single-stranded RNA virus that enters its host cell by binding to the angiotensin-converting enzyme 2 (ACE2)...Read More

11

HIV/AIDS

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एचआईवी / एड्स HIV/AIDS

HIV/AIDS, or Human Immunodeficiency Virus, is considered by some authors a global pandemic. However, the WHO currently uses the term ‘global epidemic’ to describe HIV. As of 2018, approximately 37.9 million people are infected with HIV globally. There were about 770,000 deaths from AIDS...Read More

12

Smallpox

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चेचक Smallpox

Smallpox was an infectious disease caused by one of two virus variants, Variola major and Variola minor. The agent of variola virus (VARV) belongs to the genus Orthopoxvirus.  The last naturally occurring case was diagnosed in October 1977, and the World Health Organization (WHO) certified the global...Read More

निपा वायरस संक्रमण Nipah virus infection

A Nipah virus infection is a viral infection caused by the Nipah virus. Symptoms from infection vary from none to fever, cough, headache, shortness of breath, and confusion. This may worsen into a coma over a day or two, and 50% to 75% of those infected die. Complications can include inflammation of the brain and seizures following recovery.

हंटावायरस पल्मोनरी सिंड्रोम Hantavirus pulmonary syndrome

Hantavirus pulmonary syndrome (HPS) is one of two potentially fatal syndromes of zoonotic origin caused by species of hantavirus. These include
Black Creek Canal virus (BCCV), New York orthohantavirus (NYV), Monongahela virus (MGLV), Sin Nombre orthohantavirus (SNV), and certain other members...Read More

हंतावाइरस हेमोरेजिक फीवर Hantavirus hemorrhagic fever with renal syndrome

Hantavirus hemorrhagic fever with renal syndrome (HFRS) is a group of clinically similar illnesses caused by species of hantaviruses from the family Hantaviridae, in the order Bunyavirales. It is also known as Korean hemorrhagic fever and epidemic hemorrhagic fever. The species that cause HFRS include...Read More

जापानी एनसिफेलिटिस Japanese encephalitis

Japanese encephalitis (JE) is an infection of the brain caused by the Japanese encephalitis virus (JEV). While most infections result in little or no symptoms, occasional inflammation of the brain occurs. In these cases, symptoms may include headache, vomiting, fever, confusion and seizures. This occurs about 5 to 15 days after infection.

17

Lassa fever

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लासा फीवर Lassa fever

Lassa fever, also known as Lassa hemorrhagic fever (LHF), is a type of viral hemorrhagic fever caused by the Lassa virus. Many of those infected by the virus do not develop symptoms. When symptoms occur they typically include fever, weakness, headaches, vomiting, and muscle pains. Less commonly there...Read More

18

Zika virus

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जिका वायरस Zika virus

Zika virus (ZIKV) is a member of the virus family Flaviviridae. It is spread by daytime-active Aedes mosquitoes, such as A. aegypti and A. albopictus. Its name comes from the Ziika Forest of Uganda, where the virus was first isolated in 1947. Zika virus shares a genus with the dengue, yellow fever,...Read More

19

Yellow fever

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येलो फीवर Yellow fever

Yellow fever is a viral disease of typically short duration. In most cases, symptoms include fever, chills, loss of appetite, nausea, muscle pains particularly in the back, and headaches. Symptoms typically improve within five days. In about 15% of people, within a day of improving the fever comes back, abdominal pain occurs, and liver damage begins causing yellow skin. If this occurs, the risk of bleeding and kidney problems is increased.

20

Hepatitis B

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हेपेटाइटिस बी Hepatitis B

Hepatitis B is an infectious disease caused by the hepatitis B virus (HBV) that affects the liver; it is a type of viral hepatitis. It can cause both acute and chronic infection. Many people have no symptoms during the initial infection. In acute infection, some may develop a rapid onset of sickness...Read More

21

Hepatitis C

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हेपेटाइटिस सी Hepatitis C

Hepatitis C is an infectious disease caused by the hepatitis C virus (HCV) that primarily affects the liver; it is a type of viral hepatitis. During the initial infection people often have mild or no symptoms. Occasionally a fever, dark urine, abdominal pain, and yellow tinged skin occurs. The virus...Read More

22

Hepatitis A

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हेपेटाइटिस ए Hepatitis A

Hepatitis A is an infectious disease of the liver caused by Hepatovirus A (HAV); it is a type of viral hepatitis. Many cases have few or no symptoms, especially in the young. The time between infection and symptoms, in those who develop them, is between two and six weeks. When symptoms occur, they...Read More

23

Measles

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खसरा Measles

Measles is a highly contagious infectious disease caused by measles virus. Symptoms usually develop 10–12 days after exposure to an infected person and last 7–10 days. Initial symptoms typically include fever, often greater than 40 °C (104 °F), cough, runny nose, and inflamed eyes. Small white...Read More

वेरीसेल्ला जोस्टर वायरस Varicella zoster virus

Human alphaherpesvirus 3 (HHV-3), usually referred to as the varicella-zoster virus (VZV), is one of nine herpesviruses known to infect humans. It causes chickenpox (varicella), a disease most commonly affecting children, teens, and young adults, and shingles (herpes zoster) in adults; shingles is rare in children. VZV infections are species-specific to humans, but can survive in external environments for a few hours.

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