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===Incubation period=== <!-- Image with unknown copyright status removed: [[File:Embryonated egg.jpg|thumb|right|''Toxocara canis'' embryonated egg]] --> The incubation period for ''Toxocara canis'' and ''cati'' eggs depends on temperature and humidity.<ref name="Markell_2006"/><ref name="CDC1"/> ''T. canis'' females, specifically, are capable of producing up to 200,000 eggs a day that require '''2β6 weeks''' minimum up to a couple months before full development into the infectious stage.<ref>{{cite journal | vauthors = Azam D, Ukpai OM, Said A, Abd-Allah GA, Morgan ER | s2cid = 10075744 | title = Temperature and the development and survival of infective Toxocara canis larvae | journal = Parasitology Research | volume = 110 | issue = 2 | pages = 649β56 | date = February 2012 | pmid = 21779864 | doi = 10.1007/s00436-011-2536-8 }}</ref> Under ideal '''summer conditions''', eggs can mature to the infective stage after two weeks outside of a host.<ref name="Huh, Sun, Sooung"/><ref name="Holland_2006"/><ref name="CDC1"/> Provided sufficient oxygen and moisture availability, ''Toxocara'' eggs can remain infectious for years, as their resistant outer shell enables the protection from most environmental threats.<ref name="search.proquest.com">{{cite journal | vauthors = Gamboa MI | title = Effects of temperature and humidity on the development of eggs of Toxocara canis under laboratory conditions | journal = Journal of Helminthology | volume = 79 | issue = 4 | pages = 327β31 | date = December 2005 | pmid = 16336716 | doi = 10.1079/JOH2005287 | s2cid = 30220871 | id = {{ProQuest|213503935}} }}</ref><ref name="Huh, Sun, Sooung"/><ref name="Harris Linton"/><ref name="Soskolne">{{cite web | last = Soskolne | first = Gayle | name-list-style = vanc | publisher = The University of Michigan Museum of Zoology: Animal Diversity Web. | title = Toxocara cati | date = January 2001 | url = http://animaldiversity.ummz.umich.edu/site/accounts/information/Toxocara_cati.html |access-date=2010-01-17 |url-status=live |archive-url=https://web.archive.org/web/20110605072955/http://animaldiversity.ummz.umich.edu/site/accounts/information/Toxocara_cati.html |archive-date=2011-06-05 }}</ref> However, as identified in a case study presented within the journal of helminthology, the second stage of larvae development poses strict vulnerabilities to certain environmental elements.<ref name="search.proquest.com"/> High temperatures and low moisture levels will quickly '''degrade''' the larvae during this stage of growth.<ref name="search.proquest.com"/> {{Automatic taxobox | taxon = Toxocara | subdivision_ranks = [[Species]] | subdivision = Species include:<ref>{{cite book | last = Johnstone | first = Colin | name-list-style = vanc | publisher = University of Pennsylvania | title = The Nematodes | date = January 2000 | url = http://cal.vet.upenn.edu/projects/merial/Nematodes/nems_top.htm |chapter = Nems-topics |access-date=2009-02-23 |url-status=live |archive-url=https://web.archive.org/web/20090216095731/http://cal.vet.upenn.edu/projects/merial/Nematodes/nems_top.htm |archive-date=2009-02-16 }}</ref> * ''[[Toxocara canis]]'' * ''[[Toxocara cati]]''<ref name="Harris Linton">{{cite web | last = Harris-Linton | first = Megan | name-list-style = vanc | publisher = The University of Michigan Museum of Zoology: Animal Diversity Web. | title = Toxocara canis | date = January 2001 | url = http://animaldiversity.ummz.umich.edu/site/accounts/information/Toxocara_canis.html |access-date=2009-02-23 |url-status=live |archive-url=https://web.archive.org/web/20100501134950/http://animaldiversity.ummz.umich.edu/site/accounts/information/Toxocara_canis.html |archive-date=2010-05-01 }}</ref> * ''[[Toxocara malaysiensis]]''<ref name="NCBI">{{cite web|url=https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Tree&id=6264&lvl=3&p=mapview&p=has_linkout&p=blast_url&p=genome_blast&keep=1&srchmode=1&unlock|title=Taxonomy Browser|website=www.ncbi.nlm.nih.gov|access-date=14 January 2019}}</ref> * ''[[Toxocara tanuki]]''<ref name="NCBI" /> * ''[[Toxocara vitulorum]]''<ref name="NCBI" /> }}
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