Direct evidence of an extra-intestinal cycle of Toxoplasma gondii in tigers (Panthera tigris) by isolation of viable strains.

Abstract:

:Toxoplasmosis is one of the most common zoonotic diseases in the world. Felines excrete environmentally resistant Toxoplasma gondii oocysts. However, there is no direct evidence to prove tigers are the intermediate host of T. gondii. Here, we show that, IgG antibodies to T. gondii in 80% (8/10) of captive tigers. Two viable T. gondii strains (ToxoDB genotype #9) were isolated by bioassay in mice using striated muscles of two tigers (Tiger#3 and Tiger#8). Additionally, mice were confirmed as T. gondii-positive by bioassay of feces #89-110, but no viable T. gondii strain was isolated successfully. The fecal samples from tigers may contain T. gondii oocysts. This is the first report of T. gondii isolation from tigers. These results provide direct evidence that an extra-intestinal cycle of T. gondii may develop in tigers.

journal_name

Emerg Microbes Infect

authors

Yang Y,Dong H,Su R,Jiang N,Li T,Su C,Yuan Z,Zhang L

doi

10.1080/22221751.2019.1682471

subject

Has Abstract

pub_date

2019-01-01 00:00:00

pages

1550-1552

issue

1

issn

2222-1751

journal_volume

8

pub_type

信件
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