Prepatency

In the case of infection by a parasite, prepatency describes the time from ingestion of the infectious parasite stages to the appearance of the first sex products (eggs, larvae, etc.) in the stool , urine or blood . The prepatency can, but does not have to coincide with the incubation period (occurrence of the first symptoms of the disease): Sex products can be excreted asymptomatically and symptoms can occur even before sex products are excreted. The prepatent is followed by the patent .

Examples

parasite	Prepatency
Ascaris lumbricoides	1.5–2 months
Fasciola hepatica (great liver fluke)	7–8 weeks
Toxoplasma gondii (in cats)	4-5 days
Dracunculus medinensis	up to 1 year
Trichuris trichuria	up to 3 months
Wuchereria bancrofti	9 months
Schistosoma mansoni	7–8 weeks

literature

• Josef Boch, Christian Bauer: Veterinary Parasitology . 6th edition. Paul Parey Verlag, Berlin 2000, ISBN 3-8304-4135-5 .
• Ronald Schmäschke: The coproscopic diagnosis of endoparasites in veterinary medicine. Schlütersche Verlagsgesellschaft, Hanover 2014, ISBN 978-3-89993-676-6 .

Web links

• Lexicon of Biology. accessed on February 12, 2016
• Nematodes. (PDF) accessed on February 12, 2016
• Combating worms (helminths) in dogs and cats. (PDF) accessed on February 12, 2016

This article is about a health issue. It is not used for self-diagnosis and does not replace a diagnosis by a doctor. Please note the information on health issues !