prepatent

prepatent

(prē-pā′tĕnt)
Before becoming evident or manifest.

prepatent

before it becomes manifest. Used with reference to infection with bacteria, viruses and particularly helminth parasites.

prepatent period
the period between infection of the host and the earliest time at which the causative agent can be recovered from the patient or, in the case of parasites, eggs or larvae can be recovered from feces, urine or blood. It is usually shorter than the incubation period but may be longer in some parasitic infestations, e.g. hookworm infestation in puppies.
References in periodicals archive ?
Absence of eggs in the initial analyses may be explained by the long prepatent period (4 months-2 years) and by egg shedding discontinuity in light or moderate infections (6-8).
trade secrets or prepatent inventions, may have measurable economic
If the samples are collected during the prepatent period, neither sample will yield a positive test result.
Cross-infection of moose (Alces alces) and reindeer (Rangifer tarandus) with Elaphostrongylus alces and Elaphostrongylus rangiferi (Nematoda, Protostrongylidae): effects on parasite morphology and prepatent period.
Two mice on the Timothy Grass diet died before given the parasite and four additional mice died during the prepatent period of the parasite.
HIV infection virtually always progresses to AIDS after a prepatent period of some years (6 months to about 10 years or longer).
It is probable that the animal harbored a prepatent or low level patent infection upon collection.
The prepatent period and cercarial production of Schistosoma haematobium in Bulinus truncatus (Egyptian field strains) at different constant temperatures.
Experimentally infected birds treated with toltrazuril during the prepatent period (days 1-5 after infection) shed fewer oocysts after reinfection than untreated birds.
written description until they only remedy prepatent costs.
9 days for the prepatent period (reported, in the study, to be generally 3 days longer than the incubation period) (29).
Cross infection of moose (Alces alces) and reindeer (Rangifer tarandus) with Elaphostrongylus alces and Elaphostrongylus rangiferi (Nematoda, Protostrongylidae): Effects on parasite morphology and prepatent period.