Infectious diseases are transmitted from person-to-person through the transfer of a pathogen such as bacteria, viruses, fungi or parasites. A non-infectious disease
cannot be transmitted through a pathogen
and is caused by a variety of other circumstantial factors.
What is the difference between infectious and diseases?
Understanding infection vs.
Infection, often the first step, occurs when bacteria, viruses or other microbes that cause disease enter your body and
begin to multiply
. Disease occurs when the cells in your body are damaged — as a result of the infection — and signs and symptoms of an illness appear.
What do infectious and noninfectious diseases have in common?
Students should recognize that infectious diseases are caused by pathogens such
as viruses, bacteria, and parasites
and can be spread by direct contact or through vectors. Noninfectious diseases cannot be “caught” from other humans or animals.
What is the most significant difference between an infectious disease and a contagious disease?
Infectious diseases are caused by microscopic germs (such as bacteria or viruses) that get into the body and cause problems. Some — but not all — infectious diseases
spread directly from one person to another
. Infectious diseases that spread from person to person are said to be contagious.
What are 5 infectious diseases?
- Chickenpox.
- Common cold.
- Diphtheria.
- E. coli.
- Giardiasis.
- HIV/AIDS.
- Infectious mononucleosis.
- Influenza (flu)
What is the most infectious disease?
Bubonic and Pneumonic Plagues
. Perhaps the most notorious of all infectious diseases, the bubonic and pneumonic plagues are believed to be the cause of the Black Death that rampaged through Asia, Europe and Africa in the 14th century killing an estimated 50 million people.
How can you protect yourself from infectious disease?
- Handle & Prepare Food Safely. …
- Wash Hands Often. …
- Clean & Disinfect Commonly Used Surfaces. …
- Cough & Sneeze Into Your Sleeve. …
- Don’t Share Personal Items. …
- Get Vaccinated. …
- Avoid Touching Wild Animals.
What are the three main ways infectious diseases are spread?
- the air as droplets or aerosol particles.
- faecal-oral spread.
- blood or other body fluids.
- skin or mucous membrane contact.
- sexual contact.
Is mode of transmission by kissing?
Kissing offers many health benefits, but may also transmit a
small number of disease-causing bacteria and viruses
. Bacteria and viruses in the saliva or blood of one person can be spread to another person by kissing. Some diseases are more easily spread than others.
What type of disease Cannot be spread from person to person?
A noncommunicable disease
is a noninfectious health condition that cannot be spread from person to person. It also lasts for a long period of time. This is also known as a chronic disease. A combination of genetic, physiological, lifestyle, and environmental factors can cause these diseases.
What are examples of infectious diseases?
Infectious diseases are diseases caused by living organisms like viruses and bacteria. Described as contagious, they can be passed from person to person through body secretions, insects or other means. Examples are
SARS, influenza, the common cold, tuberculosis (TB), Hepatitis A and B
.
Are all diseases infectious?
Not all infectious diseases are contagious
, however. Instead of being spread from one person to another, some infections can only be spread directly from an animal or an insect. For example, Lyme disease can result from the bite of an infected tick, but it can’t be passed from one person to another.
What are the 4 types of infectious diseases?
There are different types of pathogens, but we’re going to focus on the four most common types:
viruses, bacteria, fungi, and parasites
.
What are the 4 types of infections?
The four different categories of infectious agents are
bacteria, viruses, fungi, and parasites
. When studying these agents, researchers isolate them using certain characteristics: Size of the infectious agent.
What do infectious disease doctors look for?
Infectious disease doctors
test your blood or other body fluids to look for specific antibodies
— cells produced by our immune system to fight harmful foreign substances. These tests can indicate what kind of infection is present. For bacterial infections, treatment usually involves antibiotics.
What was the biggest pandemic?
The H1N1 influenza A pandemic of 1918–1920
(colloquially, but likely inaccurately, known as the Spanish flu) remains the deadliest pandemic of the modern age, with estimates of mortality ranging from 17 million to 100 million from an estimated 500 million infections globally (approximately a third of the global …
