{{Short description|Invasion and occupation by pests and parasites in host}} {{other uses}} {{Infobox medical condition (new) | name = Infestation | synonyms = | image = File:13 сентября клещи 008.jpg | caption = Tick-infested cow | pronounce = | field = Infectious disease | symptoms = | complications = | onset = | duration = | types = | causes = | risks = | diagnosis = | differential = | prevention = | treatment = | medication = | prognosis = | frequency = | deaths = }}
'''Infestation''' is the state of being invaded or overrun by pests or parasites.<ref>{{DorlandsDict|four/000053484|infestation}}</ref> It can also refer to the actual organisms living on or within a host.<ref name="urlInfestation - Definition and More from the Free Merriam-Webster Dictionary">{{cite web |url=http://www.merriam-webster.com/dictionary/infestation |title=Infestation - Definition and More from the Free Merriam-Webster Dictionary }}</ref>
== Terminology == In general, the term "infestation" refers to parasitic diseases caused by animals such as arthropods (i.e. mites, ticks, and lice) and worms, but excluding (except) conditions caused by protozoa, fungi, bacteria, and viruses,<ref name="SchoolKomaroff2004">{{cite book|author1=Harvard Medical School|author2-link=Anthony L. Komaroff|author2=Anthony L. Komaroff|title=Harvard Medical School Family Health Guide|url=https://books.google.com/books?id=1QE1C5cyI4YC&pg=PT889|access-date=24 April 2010|date=28 December 2004|publisher=Simon & Schuster|isbn=978-0-684-86373-3|pages=889–}}</ref> which are called infections.
== External and internal == Infestations can be classified as either external or internal with regard to the parasites' location in relation to the host.
External or ectoparasitic infestation is a condition in which organisms live primarily on the surface of the host (though porocephaliasis can penetrate viscerally) and includes those involving mites, ticks, head lice and bed bugs.<ref>{{cite web|title=Bed Bug Information|url=https://www.epa.gov/bedbugs|date=2013-03-04}}</ref>
An internal (or endoparasitic) infestation is a condition in which organisms live within the host and includes those involving worms (though swimmer's itch stays near the surface).
Sometimes, the term "infestation" is reserved for external ectoparasitic infestations<ref>{{cite web|url=https://www.webmd.com/skin-problems-and-treatments/guide/bedbugs-infestation|title=Bedbugs|publisher= Skin Problems & Treatments Health Center|access-date=2013-11-20}}</ref> while the term ''infection'' refers to internal endoparasitic conditions.<ref name="ShapiroShapiro2005">{{cite book |author1=Leland S. Shapiro|author2=Leland Shapiro|title=Pathology and parasitology for veterinary technicians |pages=[https://books.google.com/books?id=FB0KmsI_1jAC&pg=PA111 111-] |year=2005 |publisher=Cengage Learning |isbn=978-1-4018-3745-7 }}</ref>
== See also == *Disinfestation
== References == {{reflist}}
== External links == * [https://extension.tennessee.edu/publications/Documents/SP765-A.pdf Introduction to Anaerobic Soil Disinfestation as a Fumigant Alternative] {{Webarchive|url=https://web.archive.org/web/20220618210215/https://extension.tennessee.edu/publications/Documents/SP765-A.pdf |date=2022-06-18 }} * [https://blog.frontiersin.org/2017/11/08/plant-disease-infestation-frontiers-in-applied-mathematics-and-statistics/ New technique predicts risk of plant disease and infestation]
{{Medical resources | DiseasesDB = | ICD10 = {{ICD10|B|65||b|65}}-{{ICD10|B|88|9|b|85}} | ICD9 = {{ICD9|120}}-{{ICD9|129}}, {{ICD9|132}}-{{ICD9|134}} | ICDO = | OMIM = | MedlinePlus = | eMedicineSubj = | eMedicineTopic = | MeshID = | SNOMED CT = 33042004 }} {{Helminthiases}} {{Arthropod infestations}}
Category:Pests (organisms)