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Kyasanur forest disease

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https://www.readbyqxmd.com/read/29868505/epidemiology-pathogenesis-and-control-of-a-tick-borne-disease-kyasanur-forest-disease-current-status-and-future-directions
#1
REVIEW
Syed Z Shah, Basit Jabbar, Nadeem Ahmed, Anum Rehman, Hira Nasir, Sarooj Nadeem, Iqra Jabbar, Zia Ur Rahman, Shafiq Azam
In South Asia, Haemaphysalis spinigera tick transmits Kyasanur Forest Disease Virus (KFDV), a flavivirus that causes severe hemorrhagic fever with neurological manifestations such as mental disturbances, severe headache, tremors, and vision deficits in infected human beings with a fatality rate of 3-10%. The disease was first reported in March 1957 from Kyasanur forest of Karnataka (India) from sick and dying monkeys. Since then, between 400 and 500 humans cases per year have been recorded; monkeys and small mammals are common hosts of this virus...
2018: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/29806609/bioinformatics-characterization-of-envelope-glycoprotein-from-kyasanur-forest-disease-virus
#2
Pratip Shil, Pragya Dhruv Yadav, Avinash A Patil, R Balasubramanian, Devendra T Mourya
Background & objectives: Kyasanur Forest disease (KFD) is a febrile illness characterized by haemorrhages and caused by KFD virus (KFDV), which belongs to the Flaviviridae family. It is reported to be an endemic disease in Shimoga district of Karnataka State, India, especially in forested and adjoining areas. Several outbreaks have been reported in newer areas, which raised queries regarding the changing nature of structural proteins if any. The objective of the study was to investigate amino acid composition and antigenic variability if any, among the envelope glycoprotein (E-proteins) from old and new strains of KFDV...
February 2018: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/29745301/comparative-genome-analysis-of-alkhumra-hemorrhagic-fever-virus-with-kyasanur-forest-disease-and-tick-borne-encephalitis-viruses-by-the-in-silico-approach
#3
Navaneethan Palanisamy, Dario Akaberi, Johan Lennerstrand, Åke Lundkvist
Alkhumra hemorrhagic fever virus (AHFV), a relatively new member of the Flaviviruses, was discovered in Saudi Arabia 23 years ago. AHFV is classified in the tick-borne encephalitis virus serocomplex, along with the Kyasanur forest disease virus (KFDV) and tick-borne encephalitis virus (TBEV). Currently, very little is known about the pathologies of AHFV. In this study, using the available genome information of AHFV, KFDV and TBEV, we have predicted and compared the following aspects of these viruses: evolution, nucleotide and protein compositions, recombination, codon frequency, substitution rate, N- and O-glycosylation sites, signal peptide and cleavage site, transmembrane region, secondary structure of 5' and 3' UTRs and RNA-RNA interactions...
May 10, 2018: Pathogens and Global Health
https://www.readbyqxmd.com/read/29594846/prevalence-and-spatial-distribution-of-ixodid-tick-populations-in-the-forest-fringes-of-western-ghats-reported-with-human-cases-of-kyasanur-forest-disease-and-monkey-deaths-in-south-india
#4
C Sadanandane, M D Gokhale, A Elango, P Yadav, D T Mourya, P Jambulingam
Kyasanur forest disease (KFD) is a major tick-borne viral haemorrhagic fever caused by KFD virus (KFDV) (Flaviviridae). The disease was reported to be confined to five districts of Karnataka state India until 2011. During 2012-2016, emergence of KFD has been reported in newer areas of Karnataka and adjoining states. Therefore, survey of tick vectors was carried out in these new areas of Karnataka and adjoining states reported with monkey deaths and human cases of KFD. In all selected sites, ticks from the forest floor were collected by lint clothes using flagging method...
May 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/29560461/development-of-single-step-rt-pcr-for-detection-of-kyasanur-forest-disease-virus-from-clinical-samples
#5
Gouri Chaubal, Prasad Sarkale, Pravin Kore, Pragya Yadav
Background: Kyasanur Forest Disease (KFD), a tick borne flavivirus, which was earlier endemic to Karnataka state, India, has been confirmed and detected from neighboring states of Tamil Nadu, Maharashtra, Goa and Kerala states in India. Increased human and vector surveillance therefore becomes essential for the identification of KFD affected regions and control of further spread of the disease. Currently, available KFD detection assays include realtime RT-PCR and nested RT-PCR assays...
February 2018: Heliyon
https://www.readbyqxmd.com/read/29336707/kyasanur-forest-disease-prevalence-in-western-ghats-proven-and-confirmed-by-recent-outbreak-in-maharashtra-india-2016
#6
Yogesh K Gurav, Pragya D Yadav, Mangesh D Gokhale, Tushar R Chiplunkar, Rajlakshmi Vishwanathan, Deepak Y Patil, Rajlaxmi Jain, Anita M Shete, Savita L Patil, G D Sarang, Gajanan N Sapkal, M D Andhare, Y R Sale, Pradeep S Awate, Devendra T Mourya
INTRODUCTION: Kyasanur forest disease (KFD) outbreak was confirmed in Dodamarg Taluka, Sindhudurga district (Maharashtra) in India during the year 2016. The rise in suspected KFD cases was reported in January 2016, peaked during March, and then declined gradually from April 2016. The outbreak was thoroughly investigated considering different socio-clinical parameters. METHODS: Total, 488 suspected KFD cases were investigated using KFD specific real-time RT-PCR and anti-KFDV IgM enzyme-linked immunosorbent assay (ELISA)...
March 2018: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28627428/occupational-exposure-of-cashew-nut-workers-to-kyasanur-forest-disease-in-goa-india
#7
D Y Patil, P D Yadav, A M Shete, J Nuchina, R Meti, D Bhattad, S Someshwar, D T Mourya
A series of suspected cases of Kyasanur Forest disease (KFD) in subjects returning to Belgaum in Karnataka State from Goa, India, is reported herein. KFD was confirmed in 13 out of 76 cases, either by real time RT-PCR or IgM ELISA. No case fatality was recorded. KFD virus positivity was also recorded among humans and monkeys from Sattari taluk in Goa during the same period. The envelope gene sequence of positive human samples from Belgaum showed highest identity of 99.98% to 99.99% with sequences of KFD virus isolated from human cases and monkeys from Goa...
August 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28336346/antiviral-activity-of-the-adenosine-analogue-bcx4430-against-west-nile-virus-and-tick-borne-flaviviruses
#8
Luděk Eyer, Darina Zouharová, Jana Širmarová, Martina Fojtíková, Michal Štefánik, Jan Haviernik, Radim Nencka, Erik de Clercq, Daniel Růžek
There are currently no approved antiviral therapies against medically important human flaviviruses. The imino-C-nucleoside BCX4430 shows broad-spectrum antiviral activity against a wide range of RNA viruses. Here, we demonstrate that BCX4430 inhibits tick-borne species of the genus Flavivirus; however, the antiviral effect varies against individual species. Micro-molar BCX4430 levels inhibited tick-borne encephalitis virus (TBEV); while, approximately 3-8-fold higher concentrations were needed to inhibit louping ill virus and Kyasanur Forest disease virus...
June 2017: Antiviral Research
https://www.readbyqxmd.com/read/28327690/kyasanur-forest-disease-kfd-rare-disease-of-zoonotic-origin
#9
REVIEW
M Muraleedharan
Kyasanur forest disease (KFD) is a rare tick borne zoonotic disease that causes acute febrile hemorrhagic illness in humans and monkeys especially in southern part of India. The disease is caused by highly pathogenic KFD virus (KFDV) which belongs to member of the genus Flavivirus and family Flaviviridae. The disease is transmitted to monkeys and humans by infective tick Haemaphysalisspinigera. Seasonal outbreaks are expected to occur during the months of January to June. The aim of this paper is to briefly summarize the epidemiology, mode of transmission of KFD virus, clinical findings, diagnosis, treatment, control and prevention of the disease...
September 2016: Journal of Nepal Health Research Council
https://www.readbyqxmd.com/read/28220635/kyasanur-forest-disease-virus-breaking-the-endemic-barrier-an-investigation-into-ecological-effects-on-disease-emergence-and-future-outlook
#10
K Ajesh, B K Nagaraja, K Sreejith
Kyasanur Forest disease (KFD) is found in a limited range of India, but is epidemiologically understudied. The seasonal patterns of KFD are well known; however, the significant concern is on the extent to which changes in epidemiology happen especially under the influence of ecological destructions and by the eventual effects of resulting climate change. Presently, a southward and northward spread of the Kyasanur Forest disease virus (KFDV) along the Western Ghats has been reported in the adjoining states of Kerala, Tamil Nadu, Goa and Maharashtra...
November 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28218163/preliminary-risk-maps-for-transmission-of-kyasanur-forest-disease-in-southern-india
#11
A Townsend Peterson, Gautam Talukdar
Kyasanur forest disease is known to be transmitted across forested regions of Southern India. The disease appears to be hosted in wild mammals and transmitted by tick vectors although the diversity and identity of host and vector species remain unclear. The area across which risk exists of contracting the disease through transfer from the hosts or vectors, however, has never been mapped in detail, such that the area that surveillance, education, and investment in diagnostic facilities should cover remains unknown...
January 2017: Indian Journal of Public Health
https://www.readbyqxmd.com/read/27934804/use-of-hydrogen-peroxide-vapour-plasma-irradiation-in-combination-for-quick-decontamination-of-closed-chambers
#12
Devendra T Mourya, Hamish C Shahani, Pragya D Yadav, Pradip V Barde
BACKGROUND & OBJECTIVES: Various conventional methods such as gaseous, vapour and misting systems, fogging, manual spray and wipe techniques employing a number of chemical agents are used for decontamination of enclosed spaces. Among all these methods, use of aerosolized formaldehyde is the most preferred method due to cost-effectiveness and practical aspects. However, being extremely corrosive in nature generating very irritating fumes and difficulty in maintaining a high level of gas concentration, many laboratories prefer the vaporization of hydrogen peroxide (H 2 O 2 ) as an alternative...
August 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/27731570/kyasanur-forest-disease-first-reported-case-in-kerala
#13
P V Shiji, Veena Viswanath, Sreena Sreekumar, R Sreejith, Abdul Majeed, V Udayabhaskaran
Kyasanur Forest disease is a tick-borne arboviral fever with biphasic course of illness with prominent hemorrhagic features in the first phase and encephalitic picture in the second phase. So far it has been described in the southern Karnataka only. Here we report a case of Kyasanur Forest Disease for the first time from Kerala in an 18 year old male from Noolpuzha - Alathoor colony of Wayanad district.
March 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27702593/lipids-and-flaviviruses-present-and-future-perspectives-for-the-control-of-dengue-zika-and-west-nile-viruses
#14
REVIEW
Miguel A Martín-Acebes, Ángela Vázquez-Calvo, Juan-Carlos Saiz
Flaviviruses are emerging arthropod-borne pathogens that cause life-threatening diseases such as yellow fever, dengue, West Nile encephalitis, tick-borne encephalitis, Kyasanur Forest disease, tick-borne encephalitis, or Zika disease. This viral genus groups >50 viral species of small enveloped plus strand RNA virus that are phylogenetically closely related to hepatitis C virus. Importantly, the flavivirus life cycle is intimately associated to host cell lipids. Along this line, flaviviruses rearrange intracellular membranes from the endoplasmic-reticulum of the infected cells to develop adequate platforms for viral replication and particle biogenesis...
October 2016: Progress in Lipid Research
https://www.readbyqxmd.com/read/27692988/an-outbreak-of-kyasanur-forest-disease-in-the-wayanad-and-malappuram-districts-of-kerala-india
#15
C Sadanandane, A Elango, Noonu Marja, P V Sasidharan, K H K Raju, P Jambulingam
Kyasanur forest disease (KFD) is a zoonotic viral haemorrhagic fever and has been endemic to Karnataka State, India. Outbreaks of KFD were reported in new areas of Wayanad and Malappuram districts of Kerala, India during 2014-2015. Investigation of the outbreaks was carried out in these districts during May 2015. The line-list data of KFD cases available with District Medical Office, Wayanad were analysed. Case investigation was carried out to determine the risk factors associated with the outbreak and possible site of contraction infections...
January 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27479197/limited-effects-of-type-i-interferons-on-kyasanur-forest-disease-virus-in-cell-culture
#16
Bradley W M Cook, Charlene Ranadheera, Aidan M Nikiforuk, Todd A Cutts, Darwyn Kobasa, Deborah A Court, Steven S Theriault
BACKGROUND: The tick-borne flavivirus, Kyasanur Forest disease virus (KFDV) causes seasonal infections and periodic outbreaks in south-west India. The current vaccine offers poor protection with reported issues of coverage and immunogenicity. Since there are no approved prophylactic therapeutics for KFDV, type I IFN-α/β subtypes were assessed for antiviral potency against KFDV in cell culture. METHODOLOGY/PRINCIPAL FINDINGS: The continued passage of KFDV-infected cells with re-administered IFN-α2a treatment did not eliminate KFDV and had little effect on infectious particle production whereas the IFN-sensitive, green fluorescent protein-expressing vesicular stomatitis virus (VSV-GFP) infection was controlled...
August 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27374486/isolation-and-characterization-of-oya-virus-a-member-of-simbu-serogroup-family-bunyaviridae-isolated-from-karnataka-india
#17
Pragya Yadav, Anita Shete, Vijay Bondre, Deepak Patil, Prasad Kokate, Sweena Chaudhari, Sneha Srivastava, Santosh Jadhav, Devendra Mourya
During a study on Japanese encephalitis (JE) from Kolar district of Karnataka state, India in 1986; two virus isolates were obtained in infant Swiss albino mouse from a pig and a human serum sample. For characterization of these virus isolates, they were propagated in Vero CCL-81 cells. These virus isolates were screened for flaviviruses (Japanese encephalitis, West Nile, Dengue, Kyasanur forest disease) and Alphavirus (Chikungunya) by RT-PCR and found to be negative. Further these they were screened for bunyaviruses using genus-specific primers...
October 2016: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/27357207/development-of-a-subgenomic-clone-system-for-kyasanur-forest-disease-virus
#18
Bradley W M Cook, Aidan M Nikiforuk, Todd A Cutts, Darwyn Kobasa, Deborah A Court, Steven S Theriault
Emerging tropical viruses pose an increasing threat to public health because social, economic and environmental factors such as global trade and deforestation allow for their migration into previously unexposed populations and ecological niches. Among such viruses, Kyasanur Forest disease virus (KFDV) deserves particular recognition because it causes hemorrhagic fever. This work describes the completion of an antiviral testing platform (subgenomic system) for KFDV that could be used to quickly and safely screen compounds capable of inhibiting KFDV replication without the requirement for high containment, as the structural genes have been replaced with a luciferase reporter gene precluding the generation of infectious particles...
July 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27171207/an-early-passage-human-isolate-of-kyasanur-forest-disease-virus-shows-acute-neuropathology-in-experimentally-infected-cd-1-mice
#19
Atanu Basu, Pragya Yadav, Sharda Prasad, Sachin Badole, Dilip Patil, Rajendra Motilal Kohlapure, Devendra T Mourya
BACKGROUND: Kyasanur Forest disease virus (KFDV) is a tick-borne Flavivirus that causes a severe illness in humans. Disease spectrum can vary from subclinical infection to fatal cases with hemorrhagic complications. The pathology of KFDV remains incompletely understood. METHODS: This study describes the histopathologic and immunohistochemical findings in experimentally infected infant CD-1 mice with an early passage human KFDV isolate. RESULTS: Acute histological changes were primarily seen in the brain...
July 2016: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/27016316/in-vitro-antiviral-activity-of-adenosine-analog-nitd008-against-tick-borne-flaviviruses
#20
Michael K Lo, Pei-Yong Shi, Yen-Liang Chen, Mike Flint, Christina F Spiropoulou
There are currently no antiviral therapies available for the tick-borne flaviviruses associated with hemorrhagic fevers: Kyasanur Forest disease virus (KFDV), both classical and the Alkhurma hemorrhagic fever virus (AHFV) subtype, and Omsk hemorrhagic fever virus (OHFV). In this brief study, we describe the in vitro antiviral activity of adenosine analog NITD008 against KFDV, AHFV, OHFV, as well as Tick-borne Encephalitis virus (TBEV). Alongside the well-established activity of NITD008 against mosquito-borne flaviviruses, our results have demonstrated the feasibility of identifying nucleoside analog inhibitors that have pan-flavivirus activity...
June 2016: Antiviral Research
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