What Are The Common Methods Of Transmission Of Diseases Class 9?

How do infectious diseases spread 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 are 3 ways in which diseases 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 is F diagram?

The “F-diagram” (feces, fingers, flies, fields, fluids, food), showing pathways of fecal–oral disease transmission. The vertical blue lines show barriers: toilets, safe water, hygiene and handwashing.

What is the mode of transmission of infection?

Pathogens may be transferred from the source to a host by direct or indirect contact transmission and by respiratory transmission. Respiratory transmission may result from inhalation of droplets; or from inhalation of droplet nuclei, i.e., airborne transmission.

What are the 5 methods of disease transmission?

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 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…•

What kind of diseases can be transmitted through saliva?

Only certain sexually transmitted diseases (STDs) are transmittable through kissing. Two common ones are herpes simplex virus (HSV) and cytomegalovirus (CMV)….What can’t be transmitted through kissing?Chlamydia. … Gonorrhea. … Hepatitis. … Pelvic inflammatory disease (PID). … Trichomoniasis.More items…•

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 common methods of transmission of diseases?

Infectious diseases are transmitted from person to person by direct or indirect contact….Indirect contactAirborne transmission. … Contaminated objects. … Food and drinking water. … Animal-to-person contact. … Animal reservoirs. … Insect bites (vector-borne disease)More items…

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.

What are four 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 is meant by mode of transmission?

The mode (means) of transmission is the route or method of transfer by which the infectious microorganism moves or is carried from one place to another to reach the new host. The modes (means) of transmission are: Contact (direct and/or indirect), Droplet, Airborne, Vector and Common Vehicle.

What are infectious agents class 9?

Infectious diseases are the diseases caused by various pathogenic microorganisms such as virus, bacteria, protozoan, fungi, and other parasites. These infectious diseases can be transmitted by animals, humans, insects or other agents.

What is the most common route of transmission?

Contact is the most frequent mode of transmission of health care associated infections and can be divided into: direct and indirect. An example of contact transmitted microorganisms is Noroviruses which are responsible for many gastrointestinal infections.

What are the two kinds of transmission?

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.

Why do we fall ill 8?

We fall ill because we live in an area with polluted surroundings or lack of personal hygiene. It is very important to adopt certain strategies to stay healthy and prevent diseases. One should remain active by exercising daily. Eating healthy helps in the prevention of diseases.

What are the 6 modes of transmission?

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