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Epidemiological Studies On Toxoplasma Gondii In Domestic Cats And Dogs In And Around Chennai

KrishiKosh

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Title Epidemiological Studies On Toxoplasma Gondii In Domestic Cats And Dogs In And Around Chennai
 
Creator Bharathi, M. Vijaya
 
Contributor Kandavel, E
Nedunchelliyan, S
Manohar, B. Murali
Prabhakar, T.G.
 
Subject Toxoplasma gondii
Dog
Cat
Epidemiology
Serodiagnosis
Human infection
 
Description The present study was undertaken to study the epidemiology and seroprevalence
of T.gondii infection in canine and feline population in and around Chennai. A total of
500 serum samples from dogs (400) and cats (100) were collected.
Oocysts were isolated from 15 of 150 faecal samples collected from cats.
Four hundred serum samples from dogs were screened by MDAT and LAT to
detect Toxoplasma antibodies in canines. MDAT detected maximum number of positive
cases, 117 (29.25 per cent) than Latex agglutination test 93 (23.25 per cent).
All the seropositive dog sera were subjected to ELISA, IFAT and IHAT. Among
the three tests, ELISA detected 91.45 per cent (107/117) followed by IFAT 82.05 per
cent (96 / 117) and IHAT 76.06 per cent (89/117).
One hundred cat serum samples were collected from different localities and were
subjected to MDAT, LAT and IHAT to detect T. gondii antibodies. MDAT detected
more positive cases than LAT and IHAT.In this present investigation there was no significant difference between sexes
and in different age groups in dogs. The seroposivity in male (51.28 per cent) was
slightly higher when compared to female (48.71 per cent). But in cats the seropositivity
was higher in males (56.41 per cent) than in females (43.58 per cent).
The highest seroprevalence in dogs was noticed in the age group of below 2
years (24.78 per cent) . In cats, high seroposivity was observed in young kittens (43.58
per cent).
Of 117 seropositive samples, mongrel (non-descript) dogs had the seropositivity
(33.33 per cent) followed by Spitz (18.80 per cent) and the lowest seropositivity was
observed in Golden Retriever, Irish Setter, Boxer, Dachshund and Dalmatian.
.
Based on clinical signs, dogs with ocular problems (Uveitis,
Conjunvitis,
Chorioretinitis, Blindness, Corneal opacity and Cataract ) had higher seropositivity
(22.22 per cent) followed by dogs associated with concurrent infectious disease such as
canine distemper, leptospirosis and canine parvo viral infection (19.65 per cent). Both
distemper infection and toxoplasmosis were found in 82.35 per cent of clinical cases.
Clinical signs in cats observed were neurological disorder (17.94 per cent) viz.,
Paralysis, Encephalitis, Tremor, Spondylitis and combined infection of dermatitis,
ocular and enteritis problem (25.64 per cent).
In the present study, it has been observed that dogs associated with cats (42.73
per cent) and feeding of undercooked meat (43.58 per cent) were the two potential risk
factors involved in T.gondii infection in dogs.
However, six human serum samples from seropositive dogs owners when tested,
two persons had T.gondii antobodies.
Of the 20 lymph node aspirates sample, two were positive by PCR of SAG2
gene fragment.
 
Date 2016-05-27T13:40:52Z
2016-05-27T13:40:52Z
2005
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/66378
 
Language en
 
Format application/pdf
 
Publisher Tamil Nadu Veterinary and Animal Sciences University