Question: What Are 3 Causes Of Communicable Diseases?

Who is at risk of communicable diseases?

Key risk factors include crowded conditions, forced displacement, poor quality shelter, poor water, sanitation and hygiene, lack of healthcare facilities and lack of adequate surveillance..

What are the main causes of communicable diseases?

Overview. Communicable, or infectious diseases, are caused by microorganisms such as bacteria, viruses, parasites and fungi that can be spread, directly or indirectly, from one person to another. Some are transmitted through bites from insects while others are caused by ingesting contaminated food or water.

What are the four most common communicable diseases?

List of Communicable Diseases2019-nCoV.CRE.Ebola.Enterovirus D68.Flu.Hantavirus.Hepatitis A.Hepatitis B.More items…

What are the 10 non communicable diseases?

Alzheimer’s Disease.Cancer.Epilepsy.Osteoarthritis.Osteoporosis.Cerebrovascular Disease (Stroke)Chronic Obstructive Pulmonary Disease (COPD)Coronary Artery Disease.More items…

What are the 4 types of communicable diseases?

Communicable diseasesInfluenza. Norovirus. Mumps. Tuberculosis.Pertussis. Zika virus. West Nile virus.Ebola. Chikungunya virus. Coronavirus (COVID-19)

What is the most common communicable disease?

The 5 Most Common Infectious DiseasesHepatitis 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.

Is a virus a communicable disease?

A communicable disease is any disease that passes between people or animals. People sometimes refer to communicable diseases as “infectious” or “transmissible” diseases. Pathogens, including bacteria, viruses, fungi, and protists, cause communicable diseases.

What are the 3 classifications of disease?

The most widely used classifications of disease are (1) topographic, by bodily region or system, (2) anatomic, by organ or tissue, (3) physiological, by function or effect, (4) pathological, by the nature of the disease process, (5) etiologic (causal), (6) juristic, by speed of advent of death, (7) epidemiological, and …

What do mean by communicable diseases?

Communicable diseases, also known as infectious diseases or transmissible diseases, are illnesses that result from the infection, presence and growth of pathogenic (capable of causing disease) biologic agents in an individual human or other animal host.

What are 3 communicable diseases?

Some examples of reportable communicable disease include HIV, hepatitis A, B and C, measles, salmonella, measles, and blood-borne illnesses. Most common forms of spread include fecal-oral, food, sexual intercourse, insect bites, contact with contaminated fomites, droplets, or skin contact.

What are 3 causes of noninfectious diseases?

SummaryNoninfectious diseases include all diseases that are not caused by pathogens. … Risk factors for noninfectious diseases include age, gender, inherited genes, and environmental factors including exposures such as radon and behaviors such as smoking. … Cystic fibrosis is an example of a genetic noninfectious disease.More items…•

What is the main cause of infection?

The organisms that cause infections are very diverse and can include things like viruses, bacteria, fungi, and parasites. You can acquire an infection in many different ways, such as directly from a person with an infection, via contaminated food or water, and even through the bite of an insect.