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The incubation period is important in the dynamics of disease transmission because it determines the time of case detection relative to the time of infection. [1] This helps in the evaluation of the outcomes of control measures based on symptomatic surveillance. The incubation period is also useful to count the number of infected people. [1]
In a typical infectious disease, the incubation period signifies the period taken by the multiplying organism to reach a threshold necessary to produce symptoms in the host. While latent or latency period may be synonymous, a distinction is sometimes made whereby the latent period is defined as the time from infection to infectiousness. Which ...
The incubation period (the time between exposure to an infection and the onset of symptoms) is usually between 4 and 21 days. Viremia (a condition which occurs when viruses enter the bloodstream and eventually spread to the rest of the body) occurs within 5 to 10 days from exposure to Parvovirus B19, and the person remains contagious 5 days ...
The serial interval in the epidemiology of communicable (infectious) diseases is the time between successive cases in a chain of transmission. [1]The serial interval is generally estimated from the interval between clinical onsets (if observable), in which case it is the 'clinical onset serial interval'.
The relationship between the latent period, the infectious period (the period of communicability) and the incubation period. In some diseases, as depicted in this diagram, the latent period is shorter than the incubation period. A person can transmit an infection without showing any signs of the disease.
Cases of parvovirus B19 — more commonly known as Fifth disease or “slapped cheek syndrome” because of the red rash that covers an infected patient’s face — are rising in the U.S.
An epidemic curve, also known as an epi curve or epidemiological curve, is a statistical chart used in epidemiology to visualise the onset of a disease outbreak. It can help with the identification of the mode of transmission of the disease. It can also show the disease's magnitude, whether cases are clustered or if there are individual case ...
An epidemic is the rapid spread of disease to a large number of people in a given population within a short period of time; in meningococcal infections, an attack rate in excess of 15 cases per 100,000 people for two consecutive weeks is considered an epidemic. [1]