What are the 4 routes of transmission?
Diseases can spread in many ways
- Airborne transmission. Airborne transmission occurs when infectious agents are carried by dust suspended in the air.
- Respiratory (droplet) transmission.
- Sexually transmitted diseases (STDs)
- Animal or insect transmission.
- Food or water transmission.
- Health care transmission.
What does host mean in epidemiology?
Host refers to the human who can get the disease. A variety of factors intrinsic to the host, sometimes called risk factors, can influence an individual’s exposure, susceptibility, or response to a causative agent.
What does the route of infection mean?
The pathway of causative agents from a source to infection of a susceptible host is called ‘transmission route’. The characteristic of the transmission route depends mainly on the characteristics of the causative agent and those of the host.
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 is the most common route of transmission?
Contact 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 is a susceptible host?
SUSCEPTIBLE HOST The person who is at risk for developing an infection from the disease.
What are the 2 kinds of 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.
What are the 4 types of hosts?
Types of hosts
- accidental host. a host that shelters an organism which does not usually parasitize that host.
- incidental host (a.k.a. dead-end host) a host that shelters an organism but is unable to transmit the organism to a different host.
- primary host (a.k.a. definitive/final host)
- reservoir host.
What does host mean in medical terms?
1 : a living organism on or in which a parasite lives — see definitive host, host cell, intermediate host. 2 : the larger, stronger, or dominant one of a commensal or symbiotic pair. 3a : an individual into which a tissue or part is transplanted from another.
What is the definition of susceptible host?
What is the most common route of infection?
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.