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Diurnal variation in microfilaremia in cats experimentally infected with larvae of Dirofilaria immitis

Veterinary parasitology Volume 111 Issue 2-3 Page 267-271
published_at 2003
2008010236.pdf
[fulltext] 596 KB
Title
Diurnal variation in microfilaremia in cats experimentally infected with larvae of Dirofilaria immitis
Creators Hayasaki M.
Creators Okajima J.
Creators Song K. H.
Creators Shiramizu K.
Creator Keywords
cat Dirofilaria immitis microfilaria periodicity
In five healthy mongrel female cats used, four cats (Cats 1-4) were experimentally inoculated with 100-123 larvae (L_3) of Dirofilaria immitis. Cat 5 was an uninfected control. Only Cat 1 became microfilaremic on Day 201 after inoculation and the diurnal changes in the microfilaria population were monitored every 2 h for 24 h on Day 237 when a sufficient number of microfilaria were detected in the circulation. The maximum number of microfilaria in the blood (1350/ml) occurred at 9:00 p.m. and then gradually decreased to the minimum of 300/ml at 7:00 a.m., indicating that the number of microfilaria shows a nocturnal sub-periodic pattern of diurnal rhythm even in peripheral blood of cats as an abnormal host. On postmortem examination, 10 live adult worms (three males and seven females) in Cat 1 and one live adult worm (one male) in Cat 2 were detected.
Languages eng
Resource Type journal article
Publishers Elsevier
Date Issued 2003
File Version Author’s Original
Access Rights open access
Relations
[ISSN]0304-4017
[NCID]AA00883655
info:doi/10.1016/S0304-4017(02)00356-4
[isVersionOf] [URI]http://www.sciencedirect.com/science/journal/03044017
[isVersionOf] Dirofilaria immitis infection and dirofilariosis : an animal model of human filariosis [URI]http://www.lib.yamaguchi-u.ac.jp/yunoca/handle/2010010511
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