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
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.
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
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