latent period

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latent period

[′lāt·ənt ¦pir·ē·əd]
(medicine)
Any stage of an infectious disease in which there are no clinical signs of symptoms of the infection.
(physiology)
The period between the introduction of a stimulus and the response to it.
(virology)
The initial period of phage growth after infection during which time virus nucleic acid is manufactured by the host cell.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Table 2--Average incubation and latent periods (days) for brown rot and number of conidia produced (x [10.sup.4]) [mL.sup.-1] by Monilinia fructicola (isolate ISMf1) and M.
Incubation period (time between inoculation and expression of symptoms in 50% of fruit) and latent period (time between inoculation and sporulation in 50% of fruit) were estimated.
(3) [A.sub.3] = [omega]/([mu] + [omega]) is the fraction that survives the later latent period;
([R.sub.0]) 1.5-3.5 Infectivity function ([rho]) Flat or peaked ([dagger]) Latent period 1 (1-2 in sensitivity Infectious period analysis) d(s) 5 d Mixing Homogenous (within city) Propensity to travel Everyone equal Populations Sydney (4.2 million), Melbourne (3.6 million), Darwin (110,000) Travel rate ([double dagger]) (4.7 x [10.sup.3], 8.9 x Sydney [left and right arrow] [10.sup.3]) Melbourne (weighted by stay length) Travel rate ([double dagger]) (9.2 x [10.sup.3], 4.4 x Sydney [left and right arrow] [10.sup.3]) Darwin (weighted by stay length) Travel restrictions 20%,10%, or 1 % of current levels Time between 20 current cases Random variable ([T.sub.20]), in city 1 and city 2 ([T.sub.20]) different for each simulation.
The frequency of families whose mean latent periods fall within the range of latent periods of the parents provides one indication of the number of genes that control length of latent period.
Selection for increased latent periods. Euphytica 34:7-13.
The latent period, rise period and the burst size of the phage were determined by countable number of plaques and phage titre (titer: plaque-forming unit (p.f.u)) during 10, 20, 30, 40, 50, and 60 minutes.
Latent period. Intra-isolate variability (Table 3): although the differences were highly significant for the four isolates of races 314, 304, 704 and 714, they were small for those with a short latent period (DU 1943 and DU 1767).
Based on table 1 results of the 64 double haploid lines and 6E150A+, the mean of the latent period, infection type, size and density of the pustule is different meaningfully.
To estimate the duration of the latent period and the infectious period, and the probability of transmission of primary pneumonic plague, data describing cases and transmission events were sought from well-documented outbreaks.
Again, considering that we have made assumptions that favor donor screening--that the test has an exponentially distributed window period that detects infection after 3 days on average, that donor screening detects the attack after the first donor tests positive, that there is no latent period from infection through infectiousness, and that a postattack epidemic grows exponentially--donor screening as a method of attack detection does not seem competitive with simple observation of symptomatic casepatients.