What Are 4 Ways Infectious Diseases Can Spread?

Can bacteria kill viruses?

Most bacteria that get infected by a virus they have never seen will die.

Every so often, though, a bacterium does not die from viral infection.

This might happen because of a mutation in that bacterium’s DNA..

How are infectious diseases spread?

Infectious diseases commonly spread through the direct transfer of bacteria, viruses or other germs from one person to another. This can happen when an individual with the bacterium or virus touches, kisses, or coughs or sneezes on someone who isn’t infected.

What diseases are spread through bodily fluids?

Examples of diseases spread through blood or other body fluids:hepatitis B – blood, saliva, semen and vaginal fluids.hepatitis C – blood.human immunodeficiency virus (HIV) infection – blood, semen and vaginal fluids, breastmilk.cytomegalovirus (CMV) infection – saliva, semen and vaginal fluids, urine, etc.More items…

What are the two ways to treat an infectious disease Class 9?

How are infectious diseases treated?If bacteria cause a disease, treatment with antibiotics usually kills the bacteria and ends the infection.Viral infections are usually treated with supportive therapies, like rest and increased fluid intake.More items…•Feb 27, 2018

How do viruses leave your body?

Viruses can also be removed from the body by antibodies before they get the chance to infect a cell. Antibodies are proteins that specifically recognise invading pathogens and bind (stick) to them.

What is a pandemic disease Class 9?

A pandemic disease is an epidemic that has spread across a large area such as multiple continents or worldwide. … The pandemic is caused by a new infectious agent that has never caused a disease before.

What diseases can be spread through saliva?

Here are a few other illnesses which can work their way from your saliva into your nose, throat and lungs:Rhinovirus (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)Apr 7, 2020

What are the 4 main routes for infection to 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.

How do infectious diseases spread Class 9?

The infectious diseases are spread in the following ways: When an infected person sneezes or coughs, the droplets containing the pathogen of diseases such as influenza, common cold, etc. might spread in the air and infect others in the vicinity.

What is the main route to spread infection?

The transmission of microorganisms can be divided into the following five main routes: direct contact, fomites, aerosol (airborne), oral (ingestion), and vectorborne. Some microorganisms can be transmitted by more than one route.

What do you mean by infectious disease Class 9?

Infectious Diseases: The diseases which spread due to infection by micro-organisms are called infectious diseases. When a disease causing organism enters our body it causes infection, it multiplies and grows in the body called host and micro-organisms multiplies in the host body.

What diseases are spread through urine?

Botulism • Campylobacter infection • Cholera • Cryptosporidium infection • Haemolytic uraemic syndrome • Listeria infection • Salmonella infection • Shigella infection • Typhoid/Paratyphoid • Yersinia infection. Some infections are spread when urine is transferred from soiled hands or objects to the mouth.

What is the only body fluid that is not considered infectious?

Feces, nasal secretions, saliva, sputum, sweat, tears, urine, and vomitus are not considered potentially infectious unless they are visibly bloody.

What are the 5 ways infectious diseases are transmitted?

Five common ways germs are spread:Nose, mouth, or eyes to hands to others: Germs can spread to the hands by sneezing, coughing, or rubbing the eyes and then can be transferred to other family members or friends. … Hands to food: … Food to hands to food: … Infected child to hands to other children: … Animals to people:

What are the 3 main ways infection can get into the body?

This is the way that the pathogen enters the body of the potential host. Pathogens can enter the body by coming into contact with broken skin, being breathed in or eaten, coming into contact with the eyes, nose and mouth or, for example when needles or catheters are inserted.

What are the 6 modes of transmission?

The modes (means) of transmission are: Contact (direct and/or indirect), Droplet, Airborne, Vector and Common Vehicle.

What are the five basic principles for infection control?

These include standard precautions (hand hygiene, PPE, injection safety, environmental cleaning, and respiratory hygiene/cough etiquette) and transmission-based precautions (contact, droplet, and airborne).

What is the most common means of transmission of infectious diseases?

Contact transmission is the most common form of transmitting diseases and virus. 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.

Are all infectious disease contagious?

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. Some infections spread to people from an animal or insect, but are not contagious from another human.

How do viruses get into your body?

Humans can become infected by a virus in contaminated food or water. The virus enters the body through the stomach or bowels when the contaminated food or water is swallowed. Viruses spread through food or water often affect the gastrointestinal tract and cause symptoms such as nausea, vomiting, and diarrhea.