Gautam Patra

Gautam Patra
Central Agricultural University | CAU · Depertment of Veterinary Parasitology

Doctor of Philosophy

About

76
Publications
40,703
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244
Citations
Education
January 2015 - July 2015

Publications

Publications (76)
Article
Full-text available
An epidemiological study was performed to determine the role of dogs and ticks infesting dogs in the transmission of Q fever in humans and animals from April 2019 to March 2020 in the northeastern hill states of India. In total, 245 pet and stray dogs irrespective of age or sex were sampled, without specific inclusion or exclusion criteria. In tota...
Article
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Despite the fact that the climate of North-East (NE) India is suitable for tick diversity, no systematic study has been done regarding the prevalence of ticks and tick-borne pathogens affecting small ruminants. A total of 1053 goats belonging to different age groups, breeds, and sex were examined from April 2019 to March 2020. Blood smear examinati...
Article
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The present study underscores the investigation on prevalence of tick-borne pathogens of cattle both from hosts as well vectors from this part of India by conventional blood smear examination and through molecular techniques. A total of 1,153 cattle belonging to different age groups, breeds, sex were screened during the period from April, 2020 to M...
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Echinococcosis is a zoonotic parasitic disease caused by the larval stages of taeniid tapeworm of the genus Echinococcus . Four out of six species have been considered as a public health concern: Echinococcus granulosus (which causes cystic echinococcosis), Echinococcus multilocularis (which causes alveolar echinococcosis), and Echinococcus vogeli...
Article
Trypanosoma evansi is a flagellated, extracellular haemoprotozoan parasite infecting a wide range of mammalian hosts including dromedaries, cattle, equines and dogs cause disease surra. Carrier animals with sub-clinical infection cause significant monetary losses to livestock holders and therefore detection of infection status using molecular diagn...
Article
The main objective of this study was to underscore detail gross and ultra-structural morphology, molecular characterization of ticks found on snakes and their ability to carry zoonotic pathogens. The investigation was carried out throughout the North-Eastern states of India during different seasons from March, 2020 to February, 2021. The outer surf...
Article
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The present study reports the histopathological, haematological and biochemical changes in broiler chicken naturally infected with Eimeria acervulina. A polymerase chain reaction (PCR) was used to identify this species in 225 gut samples of broiler chicken from different farms in North Eastern (NE) region of India. Postmortem examination revealed g...
Article
Background & objectives: For detection and molecular characterization of Babesia microti in laboratory mice from India. Methods: A total of 625 mice were screened by peripheral blood smear examination and subsequently was confirmed by PCR using a piroplasm conserved primer set (Piro A/B). Nested PCR was done using a species-specific primer targe...
Article
Surra, a haemoprotozoan parasitic disease even in subclinical form poses a challenge in terms of diagnosis and management to animal health practitioners and policy makers as well; eventually imparting financial loss to the livestock holders. A systematic study was designed to assess the seroprevalence of surra in cattle and associated climatic risk...
Article
The transmission of respiratory pathogens has been associated with three modes i.e. by contact, droplet, and aerosol or airborne transmission. The SARS-CoV-2, which has led to the ongoing pandemic, has been associated with mainly the contact and droplet routes. But considering the emerging evidence, the airborne transmission should also be recogniz...
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Coxiella burnetii and Borrelia burgdorferi sensu lato are intracellular bacteria of great zoonotic importance. To detect these two pathogensin ticks as well as in blood samples, a nested PCR and conventional PCR was used. A total of 525 ticks were collected randomly from infected goats. Blood samples were also collected from tick-infested goats. Bo...
Article
Coxiella burnetii and Borrelia burgdorferi sensu lato are intracellular bacteria of great zoonotic importance. To detect these two pathogensin ticks as well as in blood samples, a nested PCR and conventional PCR was used. A total of 525 ticks were collected randomly from infected goats. Blood samples were also collected from tick-infested goats. Bo...
Article
Coxiella burnetii and Borrelia burgdorferi sensu lato are intracellular bacteria of great zoonotic importance. To detect these two pathogens in ticks as well as in blood samples, a nested PCR and conventional PCR was used. A total of 525 ticks were collected randomly from infected goats. Blood samples were also collected from tick-infested goats. B...
Article
The increasing emergence of wildlife diseases with the possibility to ecological threats as well as domestic animals and human health has prompted the importance of understanding disease dynamics and associated risks in biological conservation. The present study was undertaken from North Eastern part of India from January, 2017 to March, 2018 to id...
Article
Full-text available
The present study was carried out to assess the rhythmic change in the relative expression of IFN-y and quantification in blood of sheep experimental infected with Haemonchus Contortus. The whole blood samples were collected from Garole and Sahabadi breeds of sheep from West Bengal, India. All samples collected on three occasions were tested for ex...
Article
The present study reports the prevalence of ecto-and endo-parasites in small wild ruminants from various NE region of India. A total of 565 wild small ruminants in captivity were examined between April 2018 to March 2019 without causing harm to them. Faecal samples were examined microscopically for detection of different Gastrointestinal (GI) paras...
Article
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Background and Aim: Ticks (Ixodidae) not only cause blood loss in cattle but also serve as vectors for various diseases, thus causing direct and indirect losses. Moreover, tick infestation can cause significant economic losses. This study aimed to identify the diverse species of ticks infesting cattle in five different regions in Indonesia. Materi...
Article
The prevalence of endoparasitic infections of birds in different zoological gardens in North-Eastern region of India was investigated from February 2018 to January 2019. Coprological examination included 1,275 faecal samples from 10 different species of captive birds in six zoo gardens. The prevalence of blood parasites was also carried out by exam...
Article
Information pertaining to parasitic fauna and parasitic diseases in Manipuri ponies in India is not available. Moreover, no systematic studies have been undertaken on cutaneous habronemosis in Manipuri ponies which is a common skin problem of Manipuri ponies as reported by pony owners. Keeping in the view of the importance of parasitic infections i...
Article
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The increasing emergence of parasitic diseases with the possibility of ecological threats as well as domestic animals and human health has influence on the importance of understanding disease dynamics and associated risks in biological conservation. The present study was undertaken from North-Eastern part of India from January 2017 to December 2018...
Article
Aims Canine demodicosis is a parasitic condition affecting the skin of dogs. The present study was designed to characterize chitin synthase gene of Demodex canis. The molecular technique was used for better understanding of this gene. Methods A total of 75 dogs which are reared as pets with or without showing any skin lesions were examined during...
Article
The increasing emergence of wildlife diseases with the possibility of ecological threats as well as domestic animals and human health has prompted the importance of understanding disease dynamics and associated risks in biological conservation. The present study was undertaken from the North Eastern part of India from July 2017 to June 2018 to iden...
Article
The increasing emergence of wildlife diseases with the possibility of ecological threats as well as domestic animals and human health has prompted the importance of understanding disease dynamics and associated risks in biological conservation. The present study was undertaken from the North Eastern part of India from July 2017 to June 2018 to iden...
Article
In order to detect the prevalence of tick-borne pathogens in dogs, a total of 525 dog blood samples were examined by peripheral blood examination during different seasons. The survey was carried out from July, 2017 to June, 2018 in different parts of North-Eastern (NE) regions of India. Dogs were also closely inspected on their body surface for pre...
Article
Full-text available
The increasing emergence of wildlife diseases with the possibility to ecological threats as well as domestic animals and human health has prompted the importance of understanding disease dynamics and associated risks in biological conservation. The present study was undertaken from North Eastern part of India from January, 2017 to March, 2018 to id...
Article
The present study was conducted to determine the prevalence of haemoprotozoa in cattle of Mizoram from April 2017 to March 2018. The prevalence was studied in relation to age, sex breed of animals and seasonal changes in a year. Random blood samples were collected from both organized farms and unorganized cattle farms. A total of 1,153 cattle were...
Article
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Oestrus ovis, the sheep 'nasal bot fly', somewhat looks like a honey bee, has a rudimentary mouth parts and do not feed. The larva of the sheep nasal fly is responsible for causing a condition in sheep and goat called nasal myiasis, oestriosis or 'false gid'. The disease occurs when adult fly deposit first larvae (L1) into the nostrils of its host....
Article
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The present study was conducted to determine the prevalence of haemoprotozoa in goat population of West Bengal from April 2017 to March 2018. The prevalence was studied in relation to age, sex breed of animals and seasonal changes in a year. Random blood samples were collected from both organized farms and unorganized goat farms. A total of 1053 go...
Article
The present study was conducted to determine the prevalence of hard tick infestations in cattle of Mizoram from April 2017 to March 2018. The prevalence of hard tick infestations was studied in relation to sex and age of animals and seasonal changes in a year. Cattle of selected places were examined carefully for the presence of ticks and in positi...
Article
Stomoxys calcitrans (Diptera, Muscidae) is an important haematophagus fly which feeds on the blood of their animal hosts, especially livestock and occasionally on humans. Apart from their direct effects on hosts like disturbance, skin lesions, reduced feed intake, stress and blood loss, S. calcitrans acts as mechanical vectors of several bacterial,...
Article
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Cattle hypodermosis (warble fly infestation, WFI) is an economically important disease in livestock throughout the world. Larvae of Hypoderma spp. cause subcutaneous myiasis of domesticated and wild ruminants. The important species in cattle are Hypoderma bovis and Hypoderma lineatum whereas, Hypoderma diana, Hypoderma actaeon and Hypoderma tarandi...
Poster
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The epidemiological aspects of Theileria orientalis in Mizoram, North Eastern India are unknown. This study reports the first molecular characterisation of T. orientalis detected from imported (Bos taurus) and native cattle (Bos indicus × Bos taurus) of Mizoram, India. Peripheral blood smear (n = 280) examination revealed rod, comma, and ring shape...
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This paper underscores detailed morphological characteristics of Ophidascaris sp. and Polydelphis sp. recovered after post-mortem from two dead pythons. Ophidascaris sp. and Polydelphis sp. were recovered from the intestine of two dead pythons and subsequently processed for light microscopy (LM) as well as scanning electron microscopy (SEM) study....
Article
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This paper underscores detailed morphological characteristics of Ophidascaris sp. and Polydelphis sp. recovered after post-mortem from two dead pythons. Ophidascaris sp. and Polydelphis sp. were recovered from the intestine of two dead pythons and subsequently processed for light microscopy (LM) as well as scanning electron microscopy (SEM) study....
Article
Full-text available
Cattle hypodermosis (warble fly infestation, WFI) is an economically important disease in livestock throughout the world. Larvae of Hypoderma spp. cause subcutaneous myiasis of domesticated and wild ruminants. The important species in cattle are Hypoderma bovis and Hypoderma lineatum whereas, Hypoderma diana, Hypoderma actaeon and Hypoderma tarandi...
Article
Full-text available
The role of obligate endosymbiont Wolbachia in the pathogenesis and immune response to dog heartworm disease is well documented. In the present study, we explored some of the molecular characterization and phylogenetic study of endosymbiont-Wolbachia of canine heartworm (Dirofilaria immitis) from Northeastern state of India. Understanding the role...
Article
Article Type: Full Length Research Article This study revealed the parasitic fauna of different species of lizards from different parts of Mizoram, India. Four different species of lizards, namely House lizard (Hemidactylus flaviviridis, Gekkonidae), Monitor lizard (Varanus indicus, Varanidae), Gecko (Gekko gecko, Gekkonidae) and Chameleon (Chamael...
Article
This study revealed the parasitic fauna of different species of lizards from different parts of Mizoram, India. Four different species of lizards, namely House lizard (Hemidactylus flaviviridis, Gekkonidae), Monitor lizard (Varanus indicus, Varanidae), Gecko (Gekko gecko, Gekkonidae) and Chameleon (Chamaeleo zeylanicus, Chameleonidae) were surveyed...
Article
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Protozoan infections in animals are responsible for significant losses of production and many protozoan parasites are of zoonotic importance. Among various parasitic infections, several protozoan parasites cause severe morbidity and mortality in animals and thus affect the economy of livestock in tropical and subtropical regions including India. Th...
Article
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The main objective of this study is to record the prevalence of haemoprotozoan Hepatozoon in various species of snake blood by conventional blood film examination as well as by molecular technique. A total of 100 blood samples from both poisonous and non-poisonous snakes were examined over a period of one year from July, 2016 to June, 2017 from dif...
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The aim of the present study is to describe morphological structures by light microscopy (LM) and molecular confirmation of Rhipicephalus (Boophilus) spp which were recovered from wild goat. Light microscopic study revealed both male and female ticks with hexagonal basis capituli, shorter mouthparts and posterior border without festoons and other s...
Article
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Objective: To record the prevalence of parasitic fauna of snakes from different parts of Mizoram, India. Methods: Collected fecal samples of different snakes were examined by sedimentation and floatation techniques. Similarly, blood samples were examined for presence of any haemoprotozoa following Giemsa staining technique. Ectoparasites were ident...
Article
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Background and Objective: Zinc (An essential trace element) has an important function in metabolic activities such as protein synthesis, carbohydrate metabolism, reproduction, growth and a variety of biochemical reactions. The zinc ion is a co-factor of many enzymes and a component of metalloenzymes that participates in a number of metabolic proces...
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Objective: To describe the morphological and molecular characterization of a newly isolated Gordius spp from of the north eastern states of India. Materials and methods: The gross identification of the parasite was done on light microscopy (LM) and Scanning electron microscopy (SEM) study. For molecular identification a partial sequence of ITS2 reg...
Article
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Abstract Objective: The main objective of this study is to evaluate any significant differences of biochemical composition between male and female worms and to know any symbiotic relationship between Dirofilaria immitis and Wolbachia. Methods: 10 samples, each of freshly collected male and female dog heartworms were thoroughly washed in physiologic...
Article
To evaluate the role of IL-13 gene in Garole/Sahabadi sheep against resistant/susceptibility to Haemonchus contortus five Garole sheep (Group I) with consistently showing low egg per gram of faeces (EPG) (≤ 150) and another five Garole sheep (Group II) with high EPG (≥ 500) were selected and fed orally with active H. contortus third stage (L3) larv...
Article
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Abstract The nematological fauna of amphibian species from North Eastern part of India has not received any attention. Amphibians including frogs are prone to suffer from a variety of parasites and diseases like other animals. Thirty species of either sex representing two species (Rana tigrina, Bufomelano tictus) of amphibians were collected from v...
Poster
Nematomorpha, horsehair or sometimes called Gordius worms are endoparasites of insects. Juvenile stages are obligatory parasites. Adults of Gordius worms are free living , found in freshwater sites such as lakes, ponds, streams and rivers. Definite hosts become infected with hair worms when they ingest parasitic larvae during drinking. The mature p...
Article
Full-text available
The main aim of this study was to report the occurrence of tapeworm Ophiotaenia spp in various species of snakes by conventional faecal sample examination as well as molecular confirmation by polymerase chain reaction (PCR). A total of 65 snakes from both poisonous and non-poisonous were examined over a period of one year from July, 2016 to August,...
Article
Full-text available
Article Type: Full Length Research Article This study revealed the parasitic fauna of different species of lizards from different parts of Mizoram, India. Four different species of lizards, namely House lizard (Hemidactylus flaviviridis, Gekkonidae), Monitor lizard (Varanus indicus, Varanidae), Gecko (Gekko gecko, Gekkonidae) and Chameleon (Chamael...
Article
Full-text available
Objective: To evaluate the role of interferon gamma (IFN-γ) gene in Haemonchus contortus (H. contortus) resistant in Garole/Sahabadi breed of sheep. Methods: Five Garole sheep (Group I) consistently showing low egg per gram in faeces (≤ 150) and another five Garole sheep(Group II) which had high egg per gram (≥ 500) were challenged with third-stage...
Article
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Objective: To ascertain whether immunodominant antigens of Trichuris ovis might share and cross react with host molecule. Methods: Two crude protein preparations from anterior and posterior parts of Trichuris ovis were characterized along with host mucosal antigen by double immunodiffusion, sodium dodecyl sulfate-polyacrylamide gel electrophoresis...
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A survey was carried out to detect the overall incidence of histomoniasis in broiler birds in different parts of Mizoram, India. Out of 4000 birds examined, 40 birds were found positive for Histomonas meleagridis revealing 1% infection rate. Heterakis gallinarum was recovered from the caeca of positive birds. Gross lesions were found in caeca and l...
Article
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To obtain data on the incidence of lungworm infestation in piglets in different parts of Mizoram of India a survey was conducted during the calendar year 2011-2012 based on clinical and postmortem findings and in addition some biochemical and histopathological changes of affected lungs associated with Metastrongylus elongates infection were perform...
Article
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An outbreak of coccidiosis in laboratory rats has been described in this study. Clinically, out of 50 rats, 30 were died after showing symptoms of anorexia, emaciation and diarrhea. Post mortem examination showed the large and small intestine distended with necrotic and sloughed off mucosal epithelial cells with intestinal content. The examination...
Article
Six cases of dirofilariosis (Dirofilaria immitis) in dogs were clinically confirmed on the basis of symptoms, presence of microfilaria in blood followed by detection of antigen of adults heartworm in blood serum using Solo Step® CH kit. Clinically, respiratory distress, increase in heart rate and expanded rib cage were noticed. Haematological study...
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A study was carried out in broiler chicken for comparative anthelmintic efficacy of neem and pineapple leave powder with piperazin hydrate for treatment of experimental Ascaridia galli infection. The affected birds had lower levels of Hb, PCV, Ca and P. The profile changed after treatment with neem and pineapple leave powder which was comparable to...
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The present work describes isolation, cell wall preparation, morphological as well as molecular detection of oocyst of Eimeria tenella . Based on transmission electron microscopy, the oocyst of this species showed the outer and inner wall without veil forming bodies; cross section of sporozoites with different organelles and macrogamete structure a...