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dengue and malaria

Arundhati Barua, Niharika Gill
OBJECTIVE: This comparative cross sectional study was conducted in a teaching hospital in Mumbai during the monsoon of 2014.A significant number of dengue and malaria co-infection cases, along with dengue, malaria and other infective causes of acute febrile illnesses were noted. The objective of the present study was to understand the interplay of both infections. Since the first such reported case in 2005, studies and data on such cases are scarce, hence this study. AIM: To compare the clinical course, laboratory features, severity and outcome of coinfection with monoinfection of malaria and dengue...
August 2016: Journal of the Association of Physicians of India
D B Kadam, Sonali Salvi, Ajay Chandanwale
The World Health Organization (WHO) has coined the term expanded dengue to describe cases which do not fall into either dengue shock syndrome or dengue hemorrhagic fever. This has incorporated several atypical findings of dengue. Dengue virus has not been enlisted as a common etiological agent in several conditions like encephalitis, Guillain Barre syndrome. Moreover it is a great mimic of co-existing epidemics like Malaria, Chikungunya and Zika virus disease, which are also mosquito-borne diseases. The atypical manifestations noted in dengue can be mutisystemic and multifacetal...
July 2016: Journal of the Association of Physicians of India
Matthew Shortus, Jennie Musto, Hugo Bugoro, Charles Butafa, Alison Sio, Cynthia Joshua
PROBLEM: The close quartering and exposed living conditions in evacuation centres and the potential increase in vector density after flooding in Solomon Islands resulted in an increased risk of exposure for the occupants to vectorborne diseases. CONTEXT: In April 2014, Solomon Islands experienced a flash flooding event that affected many areas and displaced a large number of people. In the capital, Honiara, nearly 10 000 people were housed in emergency evacuation centres at the peak of the post-flood emergency...
January 2016: Western Pacific Surveillance and Response Journal: WPSAR
Berlin Londono-Renteria, Jenny C Cardenas, Andrea Troupin, Tonya M Colpitts
Chronic exposure to antigens may favor the production of IgG4 antibodies over other antibody types. Recent studies have shown that up to a 30% of normal human IgG4 is bi-specific and is able to recognize two antigens of different nature. A requirement for this specificity is the presence of both eliciting antigens in the same time and at the same place where the immune response is induced. During transmission of most vector-borne diseases, the pathogen is delivered to the vertebrate host along with the arthropod saliva during blood feeding and previous studies have shown the existence of IgG4 antibodies against mosquito salivary allergens...
2016: Frontiers in Immunology
Rapeephan R Maude, Aniruddha Ghose, Rasheda Samad, Hanna K de Jong, Masako Fukushima, Lalith Wijedoru, Mahtab Uddin Hassan, Md Amir Hossain, Md Rezaul Karim, Abdullah Abu Sayeed, Stannie van den Ende, Sujat Pal, A S M Zahed, Wahid Rahman, Rifat Karnain, Rezina Islam, Dung Thi Ngoc Tran, Tuyen Thanh Ha, Anh Hong Pham, James I Campbell, H Rogier van Doorn, Richard J Maude, Tom van der Poll, W Joost Wiersinga, Nicholas P J Day, Stephen Baker, Arjen M Dondorp, Christopher M Parry, Md Abul Faiz
BACKGROUND: Fever is a common cause of hospital admission in Bangladesh but causative agents, other than malaria, are not routinely investigated. Enteric fever is thought to be common. METHODS: Adults and children admitted to Chittagong Medical College Hospital with a temperature of ≥38.0 °C were investigated using a blood smear for malaria, a blood culture, real-time PCR to detect Salmonella Typhi, S. Paratyphi A and other pathogens in blood and CSF and an NS1 antigen dengue ELISA...
October 13, 2016: BMC Infectious Diseases
Amanda M V Brown, Sulochana K Wasala, Dana K Howe, Amy B Peetz, Inga A Zasada, Dee R Denver
Wolbachia, one of the most widespread endosymbionts, is a target for biological control of mosquito-borne diseases (malaria and dengue virus), and antibiotic elimination of infectious filarial nematodes. We sequenced and analyzed the genome of a new Wolbachia strain (wPpe) in the plant-parasitic nematode Pratylenchus penetrans. Phylogenomic analyses placed wPpe as the earliest diverging Wolbachia, suggesting two evolutionary invasions into nematodes. The next branches comprised strains in sap-feeding insects, suggesting Wolbachia may have first evolved as a nutritional mutualist...
October 13, 2016: Scientific Reports
(no author information available yet)
BACKGROUND: Improving survival and extending the longevity of life for all populations requires timely, robust evidence on local mortality levels and trends. The Global Burden of Disease 2015 Study (GBD 2015) provides a comprehensive assessment of all-cause and cause-specific mortality for 249 causes in 195 countries and territories from 1980 to 2015. These results informed an in-depth investigation of observed and expected mortality patterns based on sociodemographic measures. METHODS: We estimated all-cause mortality by age, sex, geography, and year using an improved analytical approach originally developed for GBD 2013 and GBD 2010...
October 8, 2016: Lancet
Meenaxi Sharda, Shivraj Meena, Anil Soni, Harish Nigam, Anuraj Singh
No abstract text is available yet for this article.
March 2016: Journal of the Association of Physicians of India
Vikram Londhey, Sachee Agrawal, Nilima Vaidya, Seema Kini, J S Shastri, Sujatha Sunil
INTRODUCTION: There have been various studies from India describing the acute presentation and the long-term sequalae of Chikungunya (CHIKV) infection. However, there are very few studies discussing the Chikungunya-Dengue (DENV) co-infection from Western India. The present project was undertaken to study the clinical features of Dengue and Chikungunya co-infection and compare with Chikungunya mono-infection; correlate the clinical findings with seroprevalence and molecular identification of Dengue and Chikungunya using IgM ELISA and RTPCR...
March 2016: Journal of the Association of Physicians of India
Falguni Parikh
Febrile patient with thrombocytopenia is commonly encountered by physicians especially during monsoon and perimonsoon period. Infections with protozoa, bacteria and viruses can cause thrombocytopenia with or without disseminated intravascular coagulation. Commonly dengue, malaria, scrub typhus and other rickettsial infections, meningococci, leptospira and certain viral infections present as fever with thrombocytopenia. Occasionally these patients can go on to develop a stormy course with multiorgan dysfunction requiring intensive care unit admission associated with high morbidity and mortality...
February 2016: Journal of the Association of Physicians of India
Giovanni Benelli, Claire L Jeffries, Thomas Walker
Mosquitoes represent the major arthropod vectors of human disease worldwide transmitting malaria, lymphatic filariasis, and arboviruses such as dengue virus and Zika virus. Unfortunately, no treatment (in the form of vaccines or drugs) is available for most of these diseases andvectorcontrolisstillthemainformofprevention. Thelimitationsoftraditionalinsecticide-based strategies, particularly the development of insecticide resistance, have resulted in significant efforts to develop alternative eco-friendly methods...
October 3, 2016: Insects
Louise K Andersen, Mark D P Davis
Climate change refers to variation in the climate of a specific region or globally over time. A change has been reported in the epidemiology of tick- and mosquito-borne diseases in recent decades. Investigators have postulated that this effect may be associated with climate change. We reviewed the English-language literature describing changes in the epidemiology of specific tick- and mosquito-borne diseases, including the tick-borne diseases of Lyme disease, tularemia, Crimean-Congo hemorrhagic fever, Mediterranean spotted fever, and Rocky Mountain spotted fever and the mosquito-borne diseases of dengue, malaria, West Nile virus infection, Ross River virus disease, and Barmah Forest virus disease...
October 1, 2016: International Journal of Dermatology
Clement N Mweya, Sharadhuli I Kimera, Grades Stanley, Gerald Misinzo, Leonard E G Mboera
BACKGROUND: Dengue is the second most important vector-borne disease of humans globally after malaria. Incidence of dengue infections has dramatically increased recently, potentially due to changing climate. Climate projections models predict increases in average annual temperature, precipitation and extreme events in the future. The objective of this study was to assess the effect of changing climate on distribution of dengue vectors in relation to epidemic risk areas in Tanzania. METHODS/FINDINGS: We used ecological niche models that incorporated presence-only infected Aedes aegypti data co-occurrence with dengue virus to estimate potential distribution of epidemic risk areas...
2016: PloS One
Mingyue Duan, Jinfeng Xiong, Dandan Lu, Guoxiu Wang, Hui Ai
Mosquito-transmitted diseases like malaria and dengue fever are global problem and an estimated 50-100 million of dengue or dengue hemorrhagic fever cases are reported worldwide every year. The mermithid nematode Romanomermis wuchangensis has been successfully used as an ecosystem-friendly biocontrol agent for mosquito prevention in laboratory studies. However, this nematode can not undergo sex differentiation in vitro culture, which has seriously affected their application of biocontrol in the field. In this study, based on transcriptome sequencing analysis of R...
2016: PloS One
Amoolya Bhat, Vijaya Chowdappa, Smita Surendra Masamatti
INTRODUCTION: Dengue affects more than 50 million people per year and is one of the most common causes of severe thrombocytopaenia. Thrombocytopaenia is a common complication of dengue and other viral fevers apart from malaria, typhoid, leptospirosis, leukaemia and megaloblastic anaemia. A platelet count of <20,000/μl is characteristically seen in dengue haemorrhagic fever and dengue fever. It results from immune complex mediated platelet destruction or bone marrow suppression. Severe thrombocytopaenia <10,000/μl is one of the indications for prophylactic platelet transfusion therapy to prevent haemorrhage...
July 2016: Journal of Clinical and Diagnostic Research: JCDR
Michael Marks, Margaret Armstrong, Christopher J M Whitty, Justin F Doherty
BACKGROUND: Understanding geographic and temporal trends in imported infections is key to the management of unwell travellers. Many tropical infections can be managed as outpatients, with admission reserved for severe cases. METHODS: We prospectively recorded the diagnosis and travel history of patients admitted between 2000 and 2015. We describe the common tropical and non-tropical infectious diseases and how these varied based on region, reason for travel and over time...
August 2016: Transactions of the Royal Society of Tropical Medicine and Hygiene
Stephen P Frances, Michael D Edstein, Mustapha Debboun, G Dennis Shanks
Australian and US military medical services have collaborated since World War II to minimize vector-borne diseases such as malaria, dengue, and scrub typhus. In this review, collaboration over the last 30 years is discussed. The collaborative projects and exchange scientist programs have resulted in mutually beneficial outcomes in the fields of drug development and personal protection measures against vector-borne diseases.
October 2016: U.S. Army Medical Department Journal
Marimuthu Govindarajan, Shine Kadaikunnan, Naiyf S Alharbi, Giovanni Benelli
Mosquito control is facing key challenges, including outbreaks of new arbovirus threats. We proposed an eco-friendly synthesis of silver nanoparticles (AgNPs) employing a low-cost extract of Hugonia mystax. AgNPs were specified by UV, XRD, FTIR and EDX spectroscopy, SEM and TEM. AgNPs were more toxic to Anopheles stephensi, Aedes aegypti, and Culex quinquefasciatus larvae (LC50: 14.45, 15.86, and 17.46 μg/mL) if compared to aquatic biocontrol organisms Gambusia affinis, Diplonychus indicus, and Anisops bouvieri (LC50: 2567...
September 9, 2016: Artificial Cells, Nanomedicine, and Biotechnology
Rakesh Bhadade, Rosemarie de'Souza, Minal Harde, Dileep Asgaonkar, Nilesh Tuplondhe
BACKGROUND: Acute respiratory distress syndrome (ARDS) is a clinical syndrome of severe dyspnoea of rapid onset, hypoxemia, and diffuse pulmonary infiltrates leading to respiratory failure in the absence of cardiac failure. We did the study to asses various aetiologies of ARDS, to determine the correlation between the diagnostic criteria, mortality predictors, need of mechanical ventilation and the outcome of patients. This was an observational, prospective study in medical intensive care unit (MICU) of a tertiary care hospital, over a period of 15 months...
November 2015: Journal of the Association of Physicians of India
Niteen D Karnik, Anish V Gupta
Acute respiratory distress syndrome (ARDS) is a fulminant clinical disorder of varied etiology, characterized by diffuse lung injury and severe hypoxemia. It is a leading cause of ICU admission and the associated high mortality has sparked a lot of research on etiology, outcome, scoring systems, mortality predictors, biomarkers including inflammatory cytokines and even genomics in ARDS. The previously used AECC (American European Consensus Conference) definition (1994) of ARDS was replaced by the recent Berlin definition (2012) so as to improve its validity and reliability...
November 2015: Journal of the Association of Physicians of India
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