Quick Answer: What Are The Factors That Influence Disease Transmission?

What are the 4 ways infections can be transmitted?

Infectious diseases can spread in a variety of ways: through the air, from direct or indirect contact with another person, soiled objects, skin or mucous membrane, saliva, urine, blood and body secretions, through sexual contact, and through contaminated food and water..

What constitutes an outbreak of a disease?

An outbreak is a sudden rise in the number of cases of a disease. An outbreak may occur in a community or geographical area, or may affect several countries. It may last for a few days or weeks, or even for several years. Some outbreaks are expected each year, such as influenza.

What disease can be transmitted through saliva?

Viruses responsible for diseases such as hepatitis viruses, herpesvirus infections (e.g., with Herpes simplex types 1 and 2, Epstein-Barr virus, Cytomegalovirus, and Kaposi syndrome herpesvirus), and papillomaviruses can be conveyed by kissing—as can potentially other viruses present in saliva such as Ebola and Zika …

What are the factors that affect how contagious infectious diseases spread?

Environmental factors influencing the spread of communicable diseases. Water, sanitation, food and air quality are vital elements in the transmission of communicable diseases and in the spread of diseases prone to cause epidemics.

What are the 3 factors that cause disease?

Infectious diseases can be caused by:Bacteria. These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis.Viruses. Even smaller than bacteria, viruses cause a multitude of diseases ranging from the common cold to AIDS.Fungi. … Parasites.

What diseases can be spread by saliva?

Does Saliva Have Health Risks? 3 Ways Germs Can SpreadRhinovirus (colds)Flu virus.Epstein-Barr virus (mononucleosis, or mono)Type 1 herpes (cold sores)Strep bacteria.Hepatitis B and hepatitis C.Cytomegalovirus (a risk for babies in the womb)

What kind of diseases can antibiotics cure?

Antibiotics are strong medicines that treat bacterial infections. Antibiotics won’t treat viral infections because they can’t kill viruses. You’ll get better when the viral infection has run its course. Common illnesses caused by bacteria are urinary tract infections, strep throat, and some pneumonia.

What are the methods of transmission?

Transmission can be by direct or indirect contact or through airborne transmission. Direct contact is person-to-person transmission of pathogens through touching, biting, kissing, or sexual intercourse. Microorganisms can also be expelled from the body by coughing, sneezing or talking.

Why should we prevent disease?

Taking care of yourself prevents health problems and saves money by reducing the number of office visits and medications you need. Self-care reduces the heavy costs of healthcare associated with disease.

What are the steps of an outbreak investigation?

Section 2: Steps of an Outbreak InvestigationPrepare for field work.Establish the existence of an outbreak.Verify the diagnosis.Construct a working case definition.Find cases systematically and record information.Perform descriptive epidemiology.Develop hypotheses.Evaluate hypotheses epidemiologically.More items…

What are the main routes that infection can enter the body?

Microorganisms capable of causing disease—pathogens—usually enter our bodies through the mouth, eyes, nose, or urogenital openings, or through wounds or bites that breach the skin barrier. Organisms can spread—or be transmitted—by several routes.

What are the 5 ways to prevent lifestyle diseases?

Here are the 5 Rules of Thumb that if maintained can actually prevent and cut down the risk of acquiring any lifestyle disease : Diet (less carbohydrate, more protein, less oil) : … Regular exercise: … Abstain from Substance Abuse: … Control weight: … Control Blood Pressure and Sugar:

What is an epidemiologic triangle?

The Epidemiologic Triangle, sometimes referred to as the Epidemiologic Triad, is a tool that scientists use for addressing the three components that contribute to the spread of disease: an external agent, a susceptible host and an environment that brings the agent and host together.

What are the three most essential elements of descriptive epidemiology?

In descriptive epidemiology, we organize and summarize data according to time, place, and person. These three characteristics are sometimes called the epidemiologic variables.

What is the difference between a cluster and an outbreak?

Outbreak carries the same definition of epidemic, but is often used for a more limited geographic area. Cluster refers to an aggregation of cases grouped in place and time that are suspected to be greater than the number expected, even though the expected number may not be known.

How are disease outbreaks controlled?

The measures that experts take to stop the spread of disease vary and depend on the pathogen in question. A common method for reducing the likelihood of disease spread is through quarantine, which involves separating an individual who may have come into contact with the infectious agent from other people.

What are the 5 modes of transmission?

Modes of transmissionDirect. Direct contact. Droplet spread.Indirect. Airborne. Vehicleborne. Vectorborne (mechanical or biologic)

What are the three major factors of the epidemiologic triangle?

The epidemiologic triangle is made up of three parts: agent, host and environment.

How can we prevent disease?

Learn, practice, and teach healthy habits.#1 Handle & Prepare Food Safely. Food can carry germs. … #2 Wash Hands Often. … #3 Clean & Disinfect Commonly Used Surfaces. … #4 Cough and Sneeze into a Tissue or Your Sleeve. … #5 Don’t Share Personal Items. … #6 Get Vaccinated. … #7 Avoid Touching Wild Animals. … #8 Stay Home When Sick.

What are the types of disease transmission?

There are two types of contact transmission: direct and indirect. Direct contact transmission occurs when there is physical contact between an infected person and a susceptible person. Indirect contact transmission occurs when there is no direct human-to-human contact.

How do we prevent bacteria?

Prevent infections. You can prevent infections through simple tactics, such as washing your hands regularly, avoiding close contact with people who are sick, cleaning surfaces that are touched often, avoiding contaminated food and water, getting vaccinations, and taking appropriate medications. Hand-washing.