Back
Home » Health
  •  
    Filmi Bollywood
    • Nawazuddin Siddiqui's Brother Shamas Nawab Siddiqui Reacts To Sexual Harassment Allegations
    • Nawazuddin Siddiqui's Niece Files Sexual Harassment Complaint Against The Actor's Brother
    • Anurag Kashyap Admits He Doesn’t Have The Courage To Go Out And Begin Shooting
    • Anurag Kashyap Launches Production House Named ‘Good Bad Films’; Announces First Film ‘Choked’
    • Tahira Kashyap Would Love To Direct Hubby Ayushmann Khurana; 'I Need To Earn That Position'
    • Shilpa Shetty Reveals How Her Daughter Faced A Few Genuine Problems Owing To The Lockdown!
    • Zoa Morani: In A Weird Way, COVID-19 Turned Out To Be A Positive Experience For Me
    • Hindu Lives Are Less Important For Bollywood: Priyanka Chopra & Kareena Kapoor Slammed By Renee Lynn
    • Has Deepika Padukone Taken Over The Post-Production Of Ranveer Singh's '83? Here's The Truth!
    • Salman Khan, Jacqueline Fernandez Spotted Riding Cycles In Panvel Amid Lockdown
    • Inside Pictures: Rangoli Chandel Gives A Tour Of Her New Dream Home Designed By Kangana Ranaut
    • Karan Johar’s Post On Death, Life, Marriage And S*x Is Thought-Provoking!
    • Ananya Panday Reveals B-Town's Biggest Gossip Girls: Kareena Kapoor, Ranbir Kapoor And Karan Johar
    • Swara Bhasker Reveals Her Reaction To The Famous ‘Vibrator Scene' From Veere Di Wedding
15 Deadly Viruses In Human History Apart From COVID-19
Boldsky | 28th Mar, 2020 02:15 PM
  • 2. Hantavirus

    It is a family of viruses that spread mainly by rodents such as cotton rats and deer mouse. The infection is spread through an aerosolised virus that shed mainly in faeces, urine or saliva of the infected host. Hantavirus was first recognised in the year 1993 in the southwestern United States. Symptoms of hantavirus include high fever, body ache, chills, breath shortness, fluid in the lungs and haemorrhagic fever with renal syndrome.

    Outbreak year: 1993, 2012, 2017, 2020

    Average mortality rate: 1-15 per cent

    3. SARS-CoV

    The outbreak of Severe Acute Respiratory Syndrome or SARS occurred in November 2002 in Southern China but was identified first in the year 2003. It is a zoonotic disease that has spread through bats and civet cats. The latest COVID-19 is believed to be similar to SARS-CoV. It spread mainly through human-to-human transmission via respiratory secretions and faeces. Symptoms of SARS-CoV include shortness of breath, diarrhoea and severe respiratory diseases.

    Outbreak year: 2002, 2003, 2004

    Average mortality rate: 0- 50 per cent depending on the age group [2]


  • 4. Rabies

    It is a fatal and neglected disease that spreads mainly through the bite or scratch of wild animals such as foxes, raccoons, bats, dogs and skunks. When these wild animals bite, the rabies virus infects the central nervous system and without proper treatment, the virus spreads to the brain and cause death. The first record of rabies was found in 2300 BC in the Mosaic Esmuna Code of Babylon. For the last 100 years rabies is aroundhumans.

    Outbreak year: 1273-1562, 1429-1655, 1491-1689, 1531-1718, 1642-1782 [3]

    Average mortality rate: Approx. 99 per cent but preventable by vaccine

    5. Cocoliztli

    It is regarded as the worst viral disease in the history of Mexico. According to a journal Emerging Infectious Diseases, Cocoliztli first occurred in the mid- 16th century and was transmitted by rodents. The disease became aggravated due to extreme drought in Mexico and killed around 17 million people. Symptoms of Cocoliztli include haemorrhagic fever, black tongue, dark urine, neurologic disorders, bleeding from eyes and nose and ultimately death. [4]

    Outbreak year: 1520, 1545, 1576, 1736 and 1813

    Average mortality rate: 15 per cent


  • 6. Measles

    It is an infectious and highly contagious disease that mainly causes infection of the skin, respiratory system and immune system. Measles is caused by the measles virus which is closely related to the pathogen of cattle. The virus usually infects children and spreads by respiration or aerosol. It was first reported in the year 1765 in the US. According to the WHO, the vaccine of measles was first introduced in 1963 and until then, the death rate was 2.6 million per year. [5]

    Outbreak year: Between the 11th-12th century

    Average mortality rate: 10-30 per cent [6]

    Other Deadly Viruses

    7. Bird Flu

    It is caused by the influenza virus and transmitted to humans by sick birds like wild duck or chicken.

    Outbreak year: 1997

    Average mortality rate: 60 per cent

    8. Smallpox

    It is a contagious disease caused by the variola virus. Smallpox is believed to have come from the African rodent poxvirus.

    Outbreak year: 10000 BC

    Average mortality rate: 30 per cent


  • 9. Dengue

    It is a mosquito-borne disease caused by dengue virus. Dengue is transmitted by the bite of female Aedes mosquito.

    Outbreak year: 1635

    Average mortality rate: 20 per cent when left untreated

    10. Spanish Flu

    It is regarded as one of the deadly influenza pandemics. Spanish flu has originated from the gene of the avian origin or through birds.

    Outbreak year: 1918

    Average mortality rate: 10-20 per cent


  • 11. Machupo Virus

    It is an infectious disease caused by rodents. Machupo disease has caused epidemic of haemorrhagic fever in South and Central America.

    Outbreak year: 1952

    Average mortality rate: 5-30 per cent

    12. HIV

    Human Immunodeficiency virus is widely believed to have crossed species from chimpanzees to humans. Still, there's no cure for HIV.

    Outbreak year: 1920

    Average mortality rate: 10-11 per cent


  • 13. Rotavirus

    It usually infects infants and young children. Rotavirus is caused by domestic and wild animals like bats, rodents and birds.

    Outbreak year: 1973

    Average mortality rate: 3.4 per cent

    14. Polio

    It is an infectious disease that causes paralysis to humans. Researchers believe that polio had come from monkeys.

    Outbreak year: 1894

    Average mortality rate: 5-10 per cent

    15. Swine Flu

    It is a disease caused by swine influenza viruses. Swine is caused by H1N1 strain which is found in pigs. It has caused a pandemic in the year 2009.

    Outbreak year: 2009

    Average mortality rate: 1-7 per cent




Coronavirus or COVID-19 has caused thousands of deaths worldwide and infected millions. It's not the first-time humans have been battling with viruses as many deadly viruses in history have created distress across the globe and killed millions.

For centuries, we fought viruses like Ebola and influenza and won the battles. But sometimes, their new strains which have evolved over time and became even more dangerous to humans come back to threaten the world. The outbreak of COVID-19 is a reminder to mankind that we have fought before and will have to fight again. Here is the list of deadly viruses in human history.

1. Ebola

Ebola virus disease is regarded as a deadly disease and it has infected people from time to time. It was first discovered in the year 1976 in Central Africa, and since then it has affected several African countries. Studies suggest that Ebola virus is animal-borne and has come from bats and nonhuman primates such as monkeys and chimpanzees. Ebola has been infecting humans for 40 years to date. Symptoms of Ebola virus include fever, diarrhoea, abdominal pain, unexplained haemorrhaging, weakness and bleeding.[1]

Outbreak year: 1976, 1977, 1979, 1989, 1990, 1992, 1994, 1995, 1996, 2000, 2001, 2003, 2004, 2005, 2007, 2008, 2011, 2012, 2014, 2017, 2018

Average mortality rate: 50 per cent

2. Hantavirus

It is a family of viruses that spread mainly by rodents such as cotton rats and deer mouse. The infection is spread through an aerosolised virus that shed mainly in faeces, urine or saliva of the infected host. Hantavirus was first recognised in the year 1993 in the southwestern United States. Symptoms of hantavirus include high fever, body ache, chills, breath shortness, fluid in the lungs and haemorrhagic fever with renal syndrome.

Outbreak year: 1993, 2012, 2017, 2020

Average mortality rate: 1-15 per cent

3. SARS-CoV

The outbreak of Severe Acute Respiratory Syndrome or SARS occurred in November 2002 in Southern China but was identified first in the year 2003. It is a zoonotic disease that has spread through bats and civet cats. The latest COVID-19 is believed to be similar to SARS-CoV. It spread mainly through human-to-human transmission via respiratory secretions and faeces. Symptoms of SARS-CoV include shortness of breath, diarrhoea and severe respiratory diseases.

Outbreak year: 2002, 2003, 2004

Average mortality rate: 0- 50 per cent depending on the age group [2]

4. Rabies

It is a fatal and neglected disease that spreads mainly through the bite or scratch of wild animals such as foxes, raccoons, bats, dogs and skunks. When these wild animals bite, the rabies virus infects the central nervous system and without proper treatment, the virus spreads to the brain and cause death. The first record of rabies was found in 2300 BC in the Mosaic Esmuna Code of Babylon. For the last 100 years rabies is aroundhumans.

Outbreak year: 1273-1562, 1429-1655, 1491-1689, 1531-1718, 1642-1782 [3]

Average mortality rate: Approx. 99 per cent but preventable by vaccine

5. Cocoliztli

It is regarded as the worst viral disease in the history of Mexico. According to a journal Emerging Infectious Diseases, Cocoliztli first occurred in the mid- 16th century and was transmitted by rodents. The disease became aggravated due to extreme drought in Mexico and killed around 17 million people. Symptoms of Cocoliztli include haemorrhagic fever, black tongue, dark urine, neurologic disorders, bleeding from eyes and nose and ultimately death. [4]

Outbreak year: 1520, 1545, 1576, 1736 and 1813

Average mortality rate: 15 per cent

6. Measles

It is an infectious and highly contagious disease that mainly causes infection of the skin, respiratory system and immune system. Measles is caused by the measles virus which is closely related to the pathogen of cattle. The virus usually infects children and spreads by respiration or aerosol. It was first reported in the year 1765 in the US. According to the WHO, the vaccine of measles was first introduced in 1963 and until then, the death rate was 2.6 million per year. [5]

Outbreak year: Between the 11th-12th century

Average mortality rate: 10-30 per cent [6]

Other Deadly Viruses 7. Bird Flu

It is caused by the influenza virus and transmitted to humans by sick birds like wild duck or chicken.

Outbreak year: 1997

Average mortality rate: 60 per cent

8. Smallpox

It is a contagious disease caused by the variola virus. Smallpox is believed to have come from the African rodent poxvirus.

Outbreak year: 10000 BC

Average mortality rate: 30 per cent

9. Dengue

It is a mosquito-borne disease caused by dengue virus. Dengue is transmitted by the bite of female Aedes mosquito.

Outbreak year: 1635

Average mortality rate: 20 per cent when left untreated

10. Spanish Flu

It is regarded as one of the deadly influenza pandemics. Spanish flu has originated from the gene of the avian origin or through birds.

Outbreak year: 1918

Average mortality rate: 10-20 per cent

11. Machupo Virus

It is an infectious disease caused by rodents. Machupo disease has caused epidemic of haemorrhagic fever in South and Central America.

Outbreak year: 1952

Average mortality rate: 5-30 per cent

12. HIV

Human Immunodeficiency virus is widely believed to have crossed species from chimpanzees to humans. Still, there's no cure for HIV.

Outbreak year: 1920

Average mortality rate: 10-11 per cent

13. Rotavirus

It usually infects infants and young children. Rotavirus is caused by domestic and wild animals like bats, rodents and birds.

Outbreak year: 1973

Average mortality rate: 3.4 per cent

14. Polio

It is an infectious disease that causes paralysis to humans. Researchers believe that polio had come from monkeys.

Outbreak year: 1894

Average mortality rate: 5-10 per cent

15. Swine Flu

It is a disease caused by swine influenza viruses. Swine is caused by H1N1 strain which is found in pigs. It has caused a pandemic in the year 2009.

Outbreak year: 2009

Average mortality rate: 1-7 per cent

   
 
Health and Life
  • Foods to Eat And Avoid For Metabolic Syndrome
  • Acute Kidney Failure: Causes, Symptoms, Risk Factors, Diagnosis And Treatment
  • 10 Home Remedies That May Help Heal Mouth Ulcers
    • Zoonotic Diseases: Types, Risk Factors, Transmission And Prevention
    • Lazy Eye (Amblyopia): Causes, Symptoms, Risk Factors, Diagnosis And Treatment
    • Did You Know That Crying Is Actually Good For Your Health?
      • Kabasura Kudineer: Ingredients, Benefits And Side Effects Of This Polyherbal Medicine
      • Premenstrual Syndrome (PMS): Causes, Symptoms, Diagnosis And Treatment
      • Why Small Pulse Oximeter Is Becoming A Major Tool For Doctors During The COVID-19 Pandemic
        • Oral (Tongue And Lip) Piercing: Risks, Dos, Don’ts And Self-care Tips
        • The Human Body: Know About Anatomy, Facts And Chemical Composition
        • 12 Home Remedies To Relieve Pneumonia Symptoms
          • COVID-19: List Of Drugs That May Fight Coronavirus Symptoms
          • International Nurses Day 2020: 8 Nutrition Tips For Nurses To Stay Fit And Healthy
          • Food Allergy Awareness Week 2020: What Is A Food Allergy? Common Allergens, Symptoms & Risk Factors
            • Osteoarthritis (Knee Osteoarthritis): Causes, Symptoms, Diagnosis, Treatment And Prevention
            • COVID-19: Scientists Identify Mutation In Coronavirus, Similar To SARS
            • Mother’s Day 2020: Health Tips For Busy Moms
              • COVID-19 & Hypertension: What You Need To Know
              • COVID-19: Is It Safe To Wear Contact Lenses During The Pandemic?
              • Can HIV Transmit Through Oral Sex?