Tilak Chandra NathSylhet Agricultural University | SAU · Department of Parasitology
Tilak Chandra Nath
PhD MPH MSc DVM
TDR Affiliates, Parasitologist and Public Health Researcher
About
42
Publications
13,790
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154
Citations
Citations since 2017
Introduction
My research focuses on investigating the interactions between human, animal, and environmental parasites, following the One Health approach. My areas of interest also include biogeography of parasitic diseases, molecular diagnostics of neglected tropical diseases, development of intervention strategies to mitigate the impact of zoonotic parasites, improvement of public health policy implementation, parasite conservation, and biobanking.
Additional affiliations
August 2019 - present
December 2015 - September 2017
January 2015 - present
Education
September 2018 - August 2022
December 2015 - January 2018
July 2010 - April 2012
Publications
Publications (42)
Background: Bangladesh has implemented school-based mass drug administration (MDA) bi-annually since 2008 aimed to control soil-transmitted helminth (STH) infection. Despite several rounds of MDA, the government is still facing challenges to achieve the target coverage and utilization of the intervention. This study was done to explore and explain...
Introduction: In Bangladesh, the prevention and control strategy of soil-transmitted helminthiasis (STHs) is based on the mass drug administration (MDA) program. Despite bi-annual MDA since 2008, the reported compliance is still below the target, and the STH prevalence is high in several areas. This study was done to assess the feasibility and barr...
Introduction:
The objectives of this study were to evaluate a modified method for isolating geohelminths eggs and to assess the geohelminths contamination in Bangladesh.
Methods:
The efficacy of the modified method was evaluated using naturally contaminated and experimentally seeded soil samples. A total of 240 samples were assessed from four di...
Aim: To assess the prevalence of intestinal helminth infections and associated risk factors among people living in urban slums in Bangladesh.
Methods: A cross-sectional study was conducted across three clusters: Dhaka, Sylhet and Chattogram. In total, 360 individuals divided into two groups (school-aged children and adults) provided stool samples a...
Accurate diagnosis by precise identification of causative agents is essential for the effectiveness of any control interventions. Despite high zoonotic potential, available literature on hookworms in Bangladesh is still scarce and nonspecific. The objective of this study was to determine the occurrence of hookworms in public locations across northe...
Introduction:
Soil-transmitted helminths (STH) infections are still attributed to a significant part of mortality and disabilities in developing nations. This study aimed at exploring the perceptions and practices concerning STH and to assess the associated risk of infections among slum-dwelling women of Dhaka South City Corporations (DSCC), Bangl...
The term, ‘farmed bear’ means that bears raised in the farms for extraction of bile juice. Although 479 farmed bears remain in 31 farms in Korea until 2019, the information on the parasitic infection in Asiatic black bears is limited in Korea. Therefore, the aim of this study was to examine the endoparasite infection status of farmed bears’ and to...
Health research mentorship in low-and middle-income countries (HERMES)-
"A TDR Global practical guide to spur mentorship institutionalization"
Introduction: Research mentorship is critical for advancing science, but there are few practical strategies for cultivating research mentorship in resource-limited settings. WHO/TDR Global commissioned a group to develop a practical guide on research mentorship. This global qualitative evidence synthesis included data from a crowdsourcing open call...
Epidemiological information and proper identification of Fasciola species present in Bangladesh are important for control. This study was aimed at determining the prevalence of liver fluke infection of goats in Sylhet, Bangladesh, and identifying those using integrated morphometric and molecular techniques. A total of 260 slaughtered goats (Capra h...
Tick and tick-borne diseases cause significant impediments to livestock health and production; however, information on the tick fauna is significantly limited in Bangladesh. This study was aimed to investigate tick fauna in Sylhet sub-district of Bangladesh targeting animal hosts and environment. A total 1427 ticks were collected by using blunt for...
Introduction
A better understanding of the epidemiology of helminths in animal hosts is important in order to ensure animal welfare, public health and food safety. The aim of this study was to explore parasitism in common animals in Bangladesh. Perception and understanding of animal owners regarding parasitic diseases management were also assessed....
The efficacy of the study method was evaluated using naturally contaminated and experimentally seeded soil samples. A total of 240 samples were assessed from four different localities of three geographic contexts. A questionnaire survey with 50 professionals was conducted.
Cystic echinococcosis is a zoonotic parasitic disease caused by Echinococcus species. Tanzania is one of the endemic countries with cystic echinococcosis. This study focussed on identifying genotypes of Echinococcus spp. in Tanzania. We collected 7 cysts from cattle in Mwanza municipal (n=4) and Loliondo district (n=3). The cysts from Mwanza were a...
This study was carried out to provide information on the taxonomic classification and analysis of mitochondrial genomes of Spirometra theileri . One strobila of S. theileri was collected from the intestine of an African leopard ( Panthera pardus ) in the Maswa Game Reserve, Tanzania. The complete mtDNA sequence of S. theileri was 13,685 bp encoding...
This study was aimed at describing two (2) intestinal nematodes from naturally infected native breed of goats (Capra hircus) in Bangladesh, identified as Oesophagostomum columbianum (Curtice, 1890) Stossich 1899 and Haemonchus contortus (Rudolphi, 1803) Cobb, 1898. The identification was made based on morphometric features and was confirmed by ampl...
Introduction: Endoparasites in captive wildlife might pose a threat to public health; however , very few studies have been conducted on this issue, and much remains to be learned, especially in limited-resource settings. This study aimed to investigate endoparasites of captive wildlife in Bangladesh. Perception and understanding of veterinarians re...
i>Spirometra tapeworms (Cestoda: Diphyllobothriidae) collected from carnivorous mammals in Tanzania were identified by the DNA sequence analysis of the mitochondrial cytochrome c oxidase subunit 1 ( cox 1) and internal transcribed spacer 1 (ITS1), and by morphological characteristics. A total of 15 adult worms were collected from stool samples and...
Phylum: Platyhelminthes Gegenbaur, 1859
Class: Cestoda Butschli, 1889
Order: Bothriocephalidea Kuchta, Scholz, Brabec & Bray, 2008
Family: Bothriocephalidae Blanchard, 1849
Genus: Taphrobothrium Lühe, 1899
Identification of new parasite species in Korea
32nd International Conference of Korean Society for Molecular and Cellular Biology (KSMCB)
In November 2019 a 5-month-old mixed-breed rabbit presented to Chungbuk National University Veterinary Teaching Hospital, Cheongju-si, Chungbuk, Republic of Korea (Korea) with symptoms comprising pruritus, crusts on skin, poor appetite and reduced defecation. The rabbit was purchased 2 months prior from a pet shop located in a big market, and that...
Abstract
Implementation research is defined as the scientific approach to understanding and addressing barriers to effective and quality implementation of health interventions, strategies, and policies as well as methods of promoting the systematic application of research findings in practice. The field of implementation research is growing, but i...
In the present study, a Spirometra species of Tanzania origin obtained from an African leopard (Panthera pardus) and spotted hyena (Crocuta crocuta) was identified based on molecular analysis of cytochrome c oxidase I (cox1) and NADH dehydrogenase subunit I (nad1) as well as by morphological observations of an adult tapeworm. One strobila and sever...
Background Despite several cycles of Mass Drug Administration (MDA), however,
the prevalence of Soil-transmitted helminthiasis (STH) remains high in
Bangladesh. A clear understanding of local knowledge, attitudes, and practices
(KAP) related to the acceptance and utilization of MDA is critical for effective
implementation of this intervention.
Meth...
Background Despite several cycles of Mass Drug Administration (MDA), however,
the prevalence of Soil-transmitted helminthiasis (STH) remains high in
Bangladesh. A clear understanding of local knowledge, attitudes, and practices
(KAP) related to the acceptance and utilization of MDA is critical for effective
implementation of this intervention.
Met...
Soil-transmitted helminths are responsible for diseases that thrive where there is poverty and disadvantage. Although rarely fatal, it is recognized as a leading global cause of lifelong disability. To achieve the target set by World Health Assembly, efforts must be intensified to eliminate STH as a public-health problem. Accumulated scientific kno...
Background: Soil-transmitted helminth (STH) infection, one of the 17 Worlds most Neglected Tropical Diseases (NTDs), is an epidemic public health problem in Bangladesh. Despite several rounds of mass drug administration (MDA), Bangladesh has faced challenges to achieve the target levels of coverage and compliance with its MDA program to eliminate S...
A survey of the prevalence of gastrointestinal parasite (GIPs) in scavenging and semi-scavenging cattle was conducted in four hilly areas of Bangladesh during the period from January to December, 2014. Faecal samples from cattle were collected and analyzed using the direct method and formol-ether concentration method. Among 400 samples, 324 samples...
The blood protozoa of two important domestic birds namely chickens (Gallus domesticus) and pigeon (Columba livia) reared in the hilly areas of Bangladesh were studied. A total of 400 birds (200 chicken and 200 pigeons) were examined of which 149 (37.3%) birds were found infected by one or more haemoprotozoan parasites. Haemoprotozoa belonging to th...
The blood protozoa of two important domestic birds namely chickens (Gallus domesticus) and pigeon (Columba livia) reared in the hilly areas of Bangladesh were studied. A total of 400 birds (200 chicken and 200 pigeons) were examined of which 149 (37.3%) [95% CI] birds were found infected by one or more haemoprotozoan parasites. Haemoprotozoa belong...
The ectoparasitic infestation of cattle around the Bangladesh was recorded high because of positive natural conditions and the cattle were discovered to be infested with several species of ticks and lice. Epidemiological examination was done amid the period from January 2013 to January 2014, of 512 Cattle examined, 364 (71.09%) were discovered to b...
The ectoparasitic infestation of cattle around the Bangladesh was recorded high because of positive natural conditions and the cattle were discovered to be infested with several species of ticks and lice. Epidemiological examination was done amid the period from January 2013 to January 2014, of 512 Cattle examined, 364 (71.09%) were discovered to b...
Abstract. Goat is an important source of nutrition and integral part of rural economy in Bangladesh. Goats are affected by several infectious diseases which can affect their growth. This study was conducted to investigate the prevalence of common infectious diseases of goat in Chittagong district of Bangladesh. The study was carried out in S.A Quad...
Presence of Leucocytozoonosis in pigeon and chicken and the pathology it produced were investigated in four (4) selected districts of Bangladesh (Khagrachari, Bandarban, Sylhet and Sunamgonj) during the period of January to December' 2011. A total of 200 samples (live birds) were collected randomly. Both ante-mortem and post-mortem examinations wer...
To investigate the prevalence of gastrointestinal parasites of calves, 450 feacal samples were collected from Mirsarai Upazilla of Chittagong District of Bangladesh during the period from 2011 to 2012. Fecal samples of calves aged up to 6 months of three different genotypes were examined for gastrointestinal parasites. The results of faecal examina...
To investigate the epidemiology and prevalence of common blood parasites of cattle, blood sample were collected (three samples for each animal) from clinically suspected (febrile, anorectic, especially non responsive to antibiotic therapy) cattle at various areas of Sylhet district during the period of 2011-2012. Total 100 cattle were examined for...
Questions
Questions (4)
Key to identification of Digenea. Thanks in advance
Why we need to do molecular characterization of hook worm?
Public Health Implementation Research
As a Bangladeshi by nationality, which journal/journals will publish my research paper without publication fee?
Projects
Projects (5)
Soil is a critical environmental reservoir of STHs including IPs, but standard method for detecting helminth eggs in soil, especially for low-resource settings is limited. In this study, our aim to develop a floatation-based field method for enumerating helminths eggs in soil, compare with available methods that can be implemented in limited resource settings. Using data from this study, we will assess the diversity and risk factors of geohelminths in selected areas in Bangladesh.
The main objective of this study is to deepen the understanding of helminthiases and perform One Health based parasitological screening comprising humans, livestock, wild animals, and environment in Bangladesh. This study will also explore the barriers and gaps of current parasitic disease control strategies and looks for an approach that can be implemented with minimum resources.
This study focus to assess the feasibility and barriers of integrating community-based education intervention to achieve the target MDA compliance in the local context of Bangladesh.
