L. John

Publications62
h-index8
Citations223
Highly Influential Citations12
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Molecular detection of Ehrlichia canis from blood of naturally infected dogs in India
The nested PCR assay for the detection of 16S rRNA gene fragment of ehrlichia canis from the blood of dogs was standardized for the first time in India. The genus-specific primers amplified a 477 bp… Expand
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Prevalence of ehrlichia canis in chennai
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In vitro effect of indigenous plant extracts on ixodid ticks of small ruminants
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INCIDENCE OF HYDATIDOSIS IN SLAUGHTERED SHEEP AND GOATS
Hydatidosis, caused by the larval stage of the dog tapeworm, Echinococcus granulosus is consider ed to be an important condition in herbivores such as cattle, buffaloes, sheep and goats. Due to its… Expand
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In vivo immunomodulatory effects of ixodid ticks on ovine circulating T‐ and B‐lymphocytes
Selected aspects of the ovine immune system were examined during the course of repeated infestations with the ixodid ticks, Haemaphysalis bispinosa and Hyalomma anatolicum anatolicum that naturally… Expand
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ANTHELMINTIC RESISTANCE IN GASTROINTESTINAL NEMATODES OF SHEEP
Anthelmintics are used traditionally as an integral part of helminthic control strategies for grazing livestock to pr event production losses from parasitic infections. The continuous and… Expand
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In vitro effect of Nicotiana tabacum aqueous extract on Rhipicephalus haemaphysaloides ticks
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Prevalence of ectoparasites of chicken reared under different systems of management1
A survey was carried out to determine the incidence of ectoparasites in desi and commercial birds of Tirunelveli and Namakkal district of Tamil Nadu, respectively. Of the 400 desi and 500 commercial… Expand
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INHIBITION OF ANTI‐SKIN ALLOGRAFT IMMUNITY INDUCED BY INFUSIONS WITH PHOTOINACTIVATED EFFECTOR T LYMPHOCYTES—THE CONGENIC MODEL
We have previously reported the capacity to produce donor-specific tolerance to alloantigens by intravenous exposure to pretreated antidonor T cells. The current study has refined this system by… Expand
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INDUCTION OF A CELL‐TRANSFERABLE SUPPRESSION OF ALLOREACTIVITY BY PHOTODAMAGED LYMPHOCYTES
We have reported previously that splenocytes from BALB/c mice acutely rejecting CBA/j skin allografts were exposed to 8-methoxypsoralen (8-MOP) and ultraviolet A light and infused several times… Expand
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