What are the agent carriers of contagious diseases?
Infectious agents include helminths, protozoa, bacteria, viruses and fungi. Six factors are involved in the transmission of communicable diseases: the infectious agent, the reservoir, route of exit, mode of transmission, route of entry, and the susceptible host.
What are diseases carriers?
A carrier is an individual who carries and is capable of passing on a genetic mutation associated with a disease and may or may not display disease symptoms. Carriers are associated with diseases inherited as recessive traits.
What are the examples of contagious diseases?
Common examples of contagious viral diseases include the flu, the common cold, HIV, and herpes. Other types of viral diseases spread through other means, such as the bite of an infected insect.
What is a carrier of a communicable disease called?
An asymptomatic carrier is a person or other organism that has become infected with a pathogen, but that displays no signs or symptoms. Although unaffected by the pathogen, carriers can transmit it to others or develop symptoms in later stages of the disease.
What is a carrier of an infectious disease?
As noted earlier, a carrier is a person with inapparent infection who is capable of transmitting the pathogen to others. Asymptomatic or passive or healthy carriers are those who never experience symptoms despite being infected.
What are agents of infectious disease?
Infectious agents are organisms that are capable of producing infection or infectious disease. They include bacteria, fungi, viruses, and parasites.
What are the 5 types of carriers?
There are basically 5 types of baby carrier: wrap, ring sling, pouch, soft-structured carrier (also called buckle carrier), meh dai (mei-tai) and backpack.
What is an example of a carrier?
The definition of a carrier is a person, thing or company that delivers something. An example of a carrier is a postal worker who delivers mail. An example of a carrier is a cat carrier that you would use to take your cat to the vet.
What is a common contagious disease?
Contagious diseases (such as the flu, colds, or strep throat) spread from person to person in several ways. One way is through direct physical contact, like touching or kissing a person who has the infection. Another way is when an infectious microbe travels through the air after someone nearby sneezes or coughs.
What is a carrier of a genetic disease?
If a person has only one gene for a disorder, he or she is known as a carrier. Carriers often do not know that they have a gene for a disorder. They usually do not have symptoms or have only mild symptoms.
What does it mean to be a carrier of Covid?
These silent carriers or spreaders are people who are infected with coronavirus but show little or no symptoms of the disease. As a result, these people carry on with their daily lives, meeting family and friends, going to work, and spreading the disease without their own knowledge.
What kind of diseases can a convalescent carrier transmit?
Convalescent carriers have been observed to transmit cholera, typhoid and paratyphoid fevers, dysentery, diphtheria, scarlet fever, meningitis, and poliomyelitis. The convalescent carrier state rarely persists longer than a month after recovery from the disease; however, in a few diseases, including typhoid fever,…
Who is the carrier of an infectious disease?
(more accurately, carrier of the infectious agent; also carrier of bacteria), a human being who is infected with and thus can transmit the causative agent of an infectious disease in the absence of visible symptoms of that disease. The condition of a carrier is known as the carrier state.
Are there any diseases caused by animal carriers?
Animal Carriers. Many of the diseases that afflict people today are caused by microbes whose ancestors came from animals first domesticated by early humans.
How long can a carrier of a disease last?
The convalescent carrier state rarely persists longer than a month after recovery from the disease; however, in a few diseases, including typhoid fever, the carrier state may become chronic and last for many years. Casual carriers are immune to the disease whose infectious agents they carry.