Question: What Are The 4 Types Of Disease Transmission?

What is the most common mode of disease 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..

What are the methods of disease transmission?

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

What are the common methods of transmission of diseases Class 9?

Direct TransmissionPerson to Person. When an infected person comes in contact with or exchanges body fluids with a non-infected person. … Droplet Transmission. … Spread by skin. … Spread through body fluids or blood. … Airborne Transmission. … Contaminated Objects. … Vector-Borne Diseases. … 4.Food and Drinking Water.More items…•Aug 30, 2020

How do vectors transmit diseases?

Vector-borne diseases are infections transmitted by the bite of infected arthropod species, such as mosquitoes, ticks, triatomine bugs, sandflies, and blackflies. Arthropod vectors are cold-blooded (ectothermic) and thus especially sensitive to climatic factors.

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 4 major disease vectors?

Disease vectorsMalaria (protozoan): Anopheles species of mosquito.Lymphatic filariasis (nematode worm): Culex, Anopheles, Aedes species of mosquito.Dengue (virus): Aedes species of mosquito.Leishmaniasis (protozoan): mainly Phlebotomus species of sandfly.More items…

What is the mode of transmission of pneumonia?

Pneumonia can be spread in a number of ways. The viruses and bacteria that are commonly found in a child’s nose or throat, can infect the lungs if they are inhaled. They may also spread via air-borne droplets from a cough or sneeze.

What disease is associated with bacteria?

Bacteria cause many common infections such as pneumonia, wound infections, bloodstream infections (sepsis) and sexually transmitted diseases like gonorrhea, and have also been responsible for several major disease epidemics.

Can humans be vectors of disease?

Many factors affect the incidence of vector-borne diseases. These factors include animals hosting the disease, vectors, and people. Humans can also be vectors for some diseases, such as Tobacco mosaic virus, physically transmitting the virus with their hands from plant to plant.

Which disease is caused by nematode?

Nematode infections in humans include ascariasis, trichuriasis, hookworm, enterobiasis, strongyloidiasis, filariasis, trichinosis, dirofilariasis, and angiostrongyliasis (rat lungworm disease), among others.

What are three methods of disease transmission?

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…