group 1 Flashcards
Series of events that occur because of the interaction between an infectious agent I host and their environment
Chain of infection
This includes bacteria viruses fungi and parasites
Infectious agents or pathogens
This is the ability to produce disease
pathogenicity
this is the ability to spread
Transmissibility
This is an object or service that is capable of transmitting diseases and infectious agents referred to as passive vectors
fomite
It does not show signs or symptoms of infection or illness does disease can you spread unknowingly
A symptomatic or passive carriers
This transmit infectious agents before they experience symptoms of infection themselves
incubatory carriers
These are who have experience illness and are still able to transmit it to others
Convalescent carriers
These are capable of transmitting infection to others for months or years after they first become infected
Chronic carriers
They are less likely to spread disease as they are aware of the risk they post to other people
Symptomatic carriers
This is where the infectious agent leaves gross and proliferates
Reservoir
This transmission from animal to person
Zoonosis
It refers to the path through which an infectious agent leaves I host
Portal of exit
It refers to how an infectious agent can be transferred from one person, object, or animal to another
Mode of transmission
Factors that lower the risk of infection
The skin, mucosal membranes, gastric acidity, cough reflexes, non-specific immune responses
Increases risk of infection can be caused by
Malnutrition, alcoholism, a disease that lowers the immune system and therapy that impairs immune responses
The person or animal infected by the pathogen
Host
It is a type of host where a person or animal infected with the adult or sexual form of the pathogen
Definitive host
Type of post that animal or person infected by a larval or a sexual form of the pathogen
Intermediate host
Occurs when a droplet from coughing is missing or talking carry the pathogen to the host body
Droplet transmission
Contact between mucous membrane is required for entry of the pathogen into the new host
Horizontal direct contact transmission
Examples of droplet transmission
Strep throat Covid nine teen influenza and the common cold
A mode of transmission allows a pot to gently spread to I host through suspended air particles, fall mites or vectors
In direct contact
Dust and fine particles known as
Aerosols