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The period from the time of infection to the time of becoming infectious is called the pre-infectious period or the latent period. During the pre-infectious or latent period, a host may or may not show symptoms (i.e. the incubation period may or may not be over), but in both cases, the host is not capable of infecting other hosts i.e ...
A latent viral infection is a type of persistent viral infection which is distinguished from a chronic viral infection. Latency is the phase in certain viruses' life cycles in which, after initial infection, proliferation of virus particles ceases. However, the viral genome is not eradicated.
In 2018, one quarter of the world's population was thought to have a latent infection of TB. [6] New infections occur in about 1% of the population each year. [ 11 ] In 2023, an estimated 10.8 million people developed active TB, resulting in 1.25 million deaths, making it the leading cause of death from an infectious disease . [ 1 ]
Such an infection is called a subclinical infection. In epidemiology , particularly in the discussion of infectious disease dynamics (mathematical modeling of disease spread), the infectious period is the time interval during which a host (individual or patient) is infectious, i.e. capable of directly or indirectly transmitting pathogenic ...
An example of a latent bacterial infection is latent tuberculosis. Some viral infections can also be latent, examples of latent viral infections are any of those from the Herpesviridae family. [55] The word infection can denote any presence of a particular pathogen at all (no matter how little) but also is often used in a sense implying a ...
After the latency period (but before clinical infection) the infected person can transmit the disease without signs of any symptoms. Such infection is called subclinical infection. Incubation period (also known as the latent period or latency period ) is the time elapsed between exposure to a pathogenic organism, a chemical, or radiation , and ...
Risk of infection is a nursing diagnosis which is defined as the state in which an individual is at risk to be infected by an opportunistic or pathogenic agent (e.g., viruses, fungi, bacteria, protozoa, or other parasites) from endogenous or exogenous sources. [1] The diagnosis was approved by NANDA in 1986. Although anyone can become infected ...
An infection rate or incident rate is the probability or risk of an infection in a population. It is used to measure the frequency of occurrence of new instances of ...