Quick Answer: How Many Diseases Are In The Human Body?

What is the most common illness in the world?

So, without further ado, here are the five most common infectious diseases.Hepatitis B.

According to current statistics, hepatitis B is the most common infectious disease in the world, affecting some 2 billion people — that’s more than one-quarter of the world’s population.

Malaria.

Hepatitis C.

Dengue.

Tuberculosis..

Which disease has no cure?

AIDS. Twenty-five years since it was first identified, there is still no cure for Acquired Immune Deficiency Syndrome. AIDS remains among the world’s most potent killers, especially in developing countries. The disease likely started with a chimp to human jump, recent research confirmed.

What causes most deaths in the world?

The leading causes of death in the world – can they be cured?Lower respiratory infections.Chronic obstructive pulmonary disease (COPD) … Lung cancer, trachea and bronchus. … Diabetes. … Alzheimer’s disease. … Diarrhoeal diseases. … Tuberculosis (TB) … Road accidents. Tragically, as many as 1.3 million deaths are a result of road accidents every year. … More items…

What disease kills the fastest?

Flesh Eating Bug. This bug can quickly sweep through the body eating the body’s soft tissue. … Cholera. This is an intestinal disease caused by eating contaminated water or food and can kill anyone within hours. … Enterovirus D68. … Bubonic Plague. … Ebola. … Dengue Fever.

How many diseases are there?

The focus is really on rare diseases, but a credible case can be made that there are at least 10,000 diseases in the world, though there is likely more. And there are a bit over 500 treatments.

What are the 10 most common diseases?

Read on to see the top 10 diseases causing the most deaths worldwide, according to the World Health Organization (WHO) .Chronic obstructive pulmonary disease. … Trachea, bronchus, and lung cancers. … Diabetes mellitus. … Alzheimer’s disease and other dementias. … Dehydration due to diarrheal diseases. … Tuberculosis. … Cirrhosis.More items…

What is the cause of all diseases in the human body?

Infectious diseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites. Many organisms live in and on our bodies. … But under certain conditions, some organisms may cause disease. Some infectious diseases can be passed from person to person.

What are the 5 types of diseases?

There are four main types of disease: infectious diseases, deficiency diseases, hereditary diseases (including both genetic diseases and non-genetic hereditary diseases), and physiological diseases. Diseases can also be classified in other ways, such as communicable versus non-communicable diseases.

What are common illnesses?

Common IllnessesAllergies.Colds and Flu.Conjunctivitis (“pink eye“)Diarrhea.Headaches.Mononucleosis.Stomach Aches.

Are diseases curable?

The term “cure” means that, after medical treatment, the patient no longer has that particular condition anymore. Some diseases can be cured. Others, like hepatitis B, have no cure. The person will always have the condition, but medical treatments can help to manage the disease.

What are the top 3 chronic diseases?

Chronic Diseases and ConditionsALS (Lou Gehrig’s Disease)Alzheimer’s Disease and other Dementias.Arthritis.Asthma.Cancer.Chronic Obstructive Pulmonary Disease (COPD)Cystic Fibrosis.Diabetes.More items…

What is the biggest killer of humans in history?

The biggest killer diseases in historyAIDS – 36 million.Cholera – 40 million.Influenza – 50 million.Plague – 240 million.Smallpox – 500 million.Tuberculosis – 1 billion.Malaria – 50 billion?

What is the biggest killer in the world?

The biggest single killer is cardiovascular disease, which affects the heart and arteries and is responsible for every third death. This is twice the rate of cancers – the second leading cause – which account for about one in six of all deaths.

What is the deadliest disease in human history?

Cholera, bubonic plague, smallpox, and influenza are some of the most brutal killers in human history. And outbreaks of these diseases across international borders, are properly defined as pandemic, especially smallpox, which throughout history, has killed between 300-500 million people in its 12,000 year existence.

What is the most common virus in humans?

These include:smallpox.the common cold and different types of flu.measles, mumps, rubella, chicken pox, and shingles.hepatitis.herpes and cold sores.polio.rabies.Ebola and Hanta fever.More items…•

How do diseases affect the human body?

Infection occurs when viruses, bacteria, or other microbes enter your body and begin to multiply. Disease occurs when the cells in your body are damaged as a result of infection and signs and symptoms of an illness appear. … Pathogenic microbes challenge the immune system in many ways.

How many people died from the Black Plague?

50 million peopleThe Black Death: The Greatest Catastrophe Ever. Ole J. Benedictow describes how he calculated that the Black Death killed 50 million people in the 14th century, or 60 per cent of Europe’s entire population. The disastrous mortal disease known as the Black Death spread across Europe in the years 1346-53.

How many humans die each year?

How many die each year? The first chart shows the annual number of deaths over the same period. In 2015 around 57 million people died. The world population therefore increased by 84 million in that year (that is an increase of 1.14%).