Read on to see the top 10 diseases causing the most deaths worldwide, according to the World Health Organization (WHO) .
- Ischemic heart disease, or coronary artery disease.
- Lower respiratory infections.
- Chronic obstructive pulmonary disease.
- Trachea, bronchus, and lung cancers.
- Diabetes mellitus.
Which is the most common disease 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.
- Hepatitis C.
What are the 4 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.
What are the 5 most common childhood illnesses?
10 Common Childhood Illnesses and Their Treatments
- Sore Throat. Sore throats are common in children and can be painful.
- Ear Pain.
- Urinary Tract Infection.
- Skin Infection.
- Common Cold.
What are the 4 types of infectious diseases?
Infection is the effect of a foreign organism in the body. Types of infection include bacterial, fungal, viral, protozoan, parasitic, and prion disease.
Other viral conditions include:
- Zika virus.
- human immunodeficiency virus (HIV)
- hepatitis C.
- Dengue fever.
- H1N1 swine flu.
What disease has killed the most humans?
Throughout history, there have been a number of pandemics, such as smallpox and tuberculosis. One of the most devastating pandemics was the Black Death, which killed over 75 million people in 1350.
What are 5 diseases caused by bacteria?
The bacteria and viruses that cause the most illnesses, hospitalizations, and deaths in the United States are:
- Norovirus (Norwalk Virus)
- E. coli.
- Clostridium perfringens.
Which diseases are caused by bacteria?
Pathogenic bacteria contribute to other globally important diseases, such as pneumonia, which can be caused by bacteria such as Streptococcus and Pseudomonas, and foodborne illnesses, which can be caused by bacteria such as Shigella, Campylobacter, and Salmonella.
What defines a disorder?
A mental disorder, also called a mental illness or psychiatric disorder, is a behavioral or mental pattern that causes significant distress or impairment of personal functioning. Mental disorders are usually defined by a combination of how a person behaves, feels, perceives, or thinks.
What is the most common genetic disease?
Most common disorders
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Which childhood diseases are deadly?
Disability-adjusted life year for childhood-cluster diseases per 100,000 inhabitants. These include pertussis, poliomyelitis, diphtheria, measles, and tetanus.
Diseases of older children
- Common cold.
- Candidiasis (“Thrush”)
- Chagas disease.
Is chickenpox a disease?
Chickenpox, also known as varicella, is a highly contagious disease caused by the initial infection with varicella zoster virus (VZV). The disease results in a characteristic skin rash that forms small, itchy blisters, which eventually scab over.
What is common disease?
The common disease-common variant (often abbreviated CD-CV) hypothesis predicts that common disease-causing alleles, or variants, will be found in all human populations which manifest a given disease. Common variants (not necessarily disease-causing) are known to exist in coding and regulatory sequences of genes.
Which disease do microorganisms cause in plants and animals?
Organisms that cause infectious disease include fungi, oomycetes, bacteria, viruses, viroids, virus-like organisms, phytoplasmas, protozoa, nematodes and parasitic plants. Not included are ectoparasites like insects, mites, vertebrate, or other pests that affect plant health by eating of plant tissues.
What are infectious and parasitic diseases generally caused by?
A parasitic disease, also known as parasitosis, is an infectious disease caused or transmitted by a parasite. Many parasites do not cause diseases as it may eventually lead to death of both organism and host. Parasitic diseases can affect practically all living organisms, including plants and mammals.
What is a contagious disease?
A contagious disease is a subset category of transmissible diseases, which are transmitted to other persons, either by physical contact with the person suffering the disease, or by casual contact with their secretions or objects touched by them or airborne route among other routes.
How many people died in ww2?
World War II fatality statistics vary, with estimates of total deaths ranging from 70 million to 85 million. Deaths directly caused by the war military and civilians killed are estimated at 50–56 million people, there were an additional estimated 19 to 28 million deaths from war-related disease and famine.
How many people has the flu killed?
Influenza may have killed as many as 25 million people in its first 25 weeks. Older estimates say it killed 40–50 million people, while current estimates say 50–100 million people worldwide were killed.
How many people has measles killed?
In 1980, 2.6 million people died of it, and in 1990, 545,000 died; by 2014, global vaccination programs had reduced the number of deaths from measles to 73,000.
Which of the following diseases is caused by protozoa?
Protozoan infections are parasitic diseases caused by organisms formerly classified in the Kingdom Protozoa. They include organisms classified in Amoebozoa, Excavata, and Chromalveolata. Examples include Entamoeba histolytica, Plasmodium (some of which cause malaria), and Giardia lamblia.
What is infection prevention and control mean?
Infection control is the discipline concerned with preventing nosocomial or healthcare-associated infection, a practical (rather than academic) sub-discipline of epidemiology. It is an essential, though often underrecognized and undersupported, part of the infrastructure of health care.
What are tropical diseases?
Tropical diseases are diseases that are prevalent in or unique to tropical and subtropical regions. The diseases are less prevalent in temperate climates, due in part to the occurrence of a cold season, which controls the insect population by forcing hibernation.
Is autism a genetic disorder?
Autism has a strong genetic basis, although the genetics of autism is complex and it is unclear whether autism spectrum disorder (ASD) is explained more by multigene interactions or by rare mutations with major effects.
What are chromosomal abnormalities?
A chromosome abnormality, disorder, anomaly, aberration, or mutation is a missing, extra, or irregular portion of chromosomal DNA. It can be from an atypical number of chromosomes or a structural abnormality in one or more chromosomes. There are many types of chromosome anomalies.
What is an inherited disorder?
A genetic disorder is a genetic problem caused by one or more abnormalities formed in the genome. Most genetic disorders are quite rare and affect one person in every several thousands or millions. Genetic disorders may be hereditary, meaning that they are passed down from the parents’ genes.
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