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https://www.readbyqxmd.com/read/27914021/surface-modified-cobalt-ferrite-nanoparticles-for-rapid-capture-detection-and-removal-of-pathogens-a-potential-material-for-water-purification
#1
Raghvendra A Bohara, Nanasaheb D Throat, Nayeem A Mulla, Shivaji H Pawar
Enteric infections resulting from the consumption of contaminated drinking water, inadequate supply of water for personal hygiene, and poor sanitation take a heavy toll worldwide, and developing countries are the major sufferers. Consumption of microbiologically contaminated water leads to diseases such as amoebiasis, cholera, shigellosis, typhoid, and viral infections leading to gastroenteritis and hepatitis B. The present investigation deals with the development of effective method to capture and eliminate microbial contamination of water and improve the quality of water and thus decreasing the contaminated waterborne infections...
December 2, 2016: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/27906062/severe-thrombocytopenia-in-a-child-with-typhoid-fever-a-case-report
#2
Mohammed Al Reesi, Glenn Stephens, Brendan McMullan
BACKGROUND: Although thrombocytopenia is common in typhoid fever, its course, response to treatment, and need for specific therapies such as platelet transfusion are not well characterized. CASE PRESENTATION: We report a case of typhoid fever in a 4-year-old Asian male returned traveler, admitted with prolonged fever and found to have severe thrombocytopenia (platelets 16 × 10(9)/L). Despite appropriate antibiotic therapy, his platelet recovery was slow, but did not lead to complications and he did not require platelet transfusion...
November 30, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27905890/low-and-declining-attack-rates-of-imported-typhoid-fever-in-the-netherlands-1997-2014-in-spite-of-a-restricted-vaccination-policy
#3
F S T Suryapranata, M Prins, G J B Sonder
BACKGROUND: Typhoid fever mainly occurs in (sub) tropical regions where sanitary conditions remain poor. In other regions it occurs mainly among returning travelers or their direct contacts. The aim of this study was to evaluate the current Dutch guidelines for typhoid vaccination. METHOD: Crude annual attack rates (AR) per 100,000 Dutch travelers were calculated during the period 1997 to 2014 by dividing the number of typhoid fever cases by the estimated total number of travelers to a specific country or region...
December 1, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27902389/antimicrobial-susceptibility-to-azithromycin-among-salmonella-enterica-typhi-and-paratyphi-a-isolates-from-india
#4
Richa Misra, Kashi N Prasad
Decreased ciprofloxacin susceptibility (DCS) and multi-drug resistance (MDR) in typhoidal Salmonella isolates in areas of endemicity is a significant therapeutic problem. Guidelines for azithromycin disk diffusion and minimal inhibitory concentration (MIC) interpretive criteria for Salmonella enterica serovar Typhi were published recently by CLSI in 2015.We investigated the antimicrobial susceptibility pattern of azithromycin in 100 isolates of Salmonella Typhi (n=80), Paratyphi A (n=18) and B (n=2) recovered from blood stream infections from January 2013 to December 2015...
November 10, 2016: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/27894983/a-case-of-clinical-and-microbiological-failure-of-azithromycin-therapy-in-salmonella-enterica-serotype-typhi-despite-low-azithromycin-mic
#5
Abi Manesh, Veeraraghavan Balaji, Devanga Ragupathi Naveen Kumar, Priscilla Rupali
Typhoid fever remains a serious problem in many developing countries. Due to resistance to multiple first line drugs, azithromycin has evolved as an important drug in the treatment of Typhoid. While therapy with azithromycin is highly effective, no clinically validated mean inhibitory concentration (MIC) break points or disc diffusion cutoff guidelines are available so far. We describe an Indian adult with clinical and microbiological failure to azithromycin despite low azithromycin MIC.
November 25, 2016: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/27893465/accelerated-resolution-of-inflammation-underlies-sex-differences-in-inflammatory-responses-in-humans
#6
Krishnaraj S Rathod, Vikas Kapil, Shanti Velmurugan, Rayomand S Khambata, Umme Siddique, Saima Khan, Sven Van Eijl, Lorna C Gee, Jascharanpreet Bansal, Kavi Pitrola, Christopher Shaw, Fulvio D'Acquisto, Romain A Colas, Federica Marelli-Berg, Jesmond Dalli, Amrita Ahluwalia
BACKGROUND: Cardiovascular disease occurs at lower incidence in premenopausal females compared with age-matched males. This variation may be linked to sex differences in inflammation. We prospectively investigated whether inflammation and components of the inflammatory response are altered in females compared with males. METHODS: We performed 2 clinical studies in healthy volunteers. In 12 men and 12 women, we assessed systemic inflammatory markers and vascular function using brachial artery flow-mediated dilation (FMD)...
November 28, 2016: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/27891335/a-comparative-evaluation-of-different-diagnostic-modalities-in-the-diagnosis-of-typhoid-fever-using-a-composite-reference-standard-a-tertiary-hospital-based-study-in-central-india
#7
Veena Maheshwari, Navinchandra Motiram Kaore, Vijay Kumar Ramnani, Sheil Sarda
INTRODUCTION: Enteric fever, caused by Salmonella spp. is a major cause of morbidity and mortality worldwide and endemic in many developing countries including India and other South-East Asian countries. Blood culture is regarded as the gold standard for diagnosis. Currently, the standard serological method is tube agglutination with moderate sensitivity and specificity. Dot blot assay detecting IgM and IgG antibodies to a specific 50kD Outer Membrane Protein (OMP) antigen of Salmonella spp...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27891182/case-control-study-of-diarrheal-disease-etiology-in-individuals-over-5%C3%A2-years-in-southwest-china
#8
Shun-Xian Zhang, Chun-Li Yang, Wen-Peng Gu, Lin Ai, Emmanuel Serrano, Pin Yang, Xia Zhou, Shi-Zhu Li, Shan Lv, Zhi-Sheng Dang, Jun-Hu Chen, Wei Hu, Li-Guang Tian, Jia-Xu Chen, Xiao-Nong Zhou
BACKGROUND: Acute diarrhea is one of the major public health problems worldwide. Most of studies on acute diarrhea have been made on infants aged below 5 years and few efforts have been made to identify the etiological agents of acute diarrhea in people over five, especially in China. METHODS: 271 diarrhea cases and 149 healthy controls over 5 years were recruited from four participating hospitals between June 2014 and July 2015. Each stool specimen was collected to detect a series of enteric pathogens, involving five viruses (Rotavirus group A, RVA; Norovirus, NoV; Sapovirus, SaV; Astrovirus, As; and Adenovirus, Ad), seven bacteria (diarrheagenic Escherichia coli, DEC; non-typhoidal Salmonella, NTS; Shigella spp...
2016: Gut Pathogens
https://www.readbyqxmd.com/read/27887651/studies-on-the-therapeutic-effect-of-propolis-along-with-standard-antibacterial-drug-in-salmonella-enterica-serovar-typhimurium-infected-balb-c-mice
#9
Preeti Kalia, Neelima R Kumar, Kusum Harjai
BACKGROUND: Antibiotic resistance is an emerging public health problem. Centers for Disease Control and Prevention (CDC) has described antibiotic resistance as one of the world's most pressing health problems in 21(st) century. WHO rated antibiotic resistance as "one of the three greatest threats to human health". One important strategy employed to overcome this resistance is the use of combination of drugs. Many plants, natural extracts have been shown to exhibit synergistic response with standard drugs against microorganisms...
November 25, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27886215/hyperinvasiveness-of-salmonella-enterica-serovar-choleraesuis-linked-to-hyperexpression-of-type-iii-secretion-systems-in-vitro
#10
Kuan-Yeh Huang, Yi-Hsin Wang, Kun-Yi Chien, Rajendra Prasad Janapatla, Cheng-Hsun Chiu
Salmonella enterica serovars Choleraesuis and Typhimurium are among the non-typhoid Salmonella serovars that are important zoonotic pathogens. In clinical observation, S. Typhimurium typically causes diarrheal diseases; however, S. Choleraesuis shows high predilection to cause bacteremia. The mechanism why S. Choleraesuis is more invasive to humans remains unknown. In this study, we compared the S. Typhimurium LT2 and S. Choleraesuis SC-B67 proteomes through stable isotope labeling of amino acid in cell culture (SILAC)...
November 25, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27869515/vi-capsular-polysaccharide-synthesis-virulence-and-application
#11
Xiaomei Hu, Zhijin Chen, Kun Xiong, Jing Wang, Xiancai Rao, Yanguang Cong
Vi capsular polysaccharide, a linear homopolymer of α-1,4-linked N-acetylgalactosaminuronate, is characteristically produced by Salmonella enterica serovar Typhi. The Vi capsule covers the surface of the producing bacteria and serves as an virulence factor via inhibition of complement-mediated killing and promoting resistance against phagocytosis. Furthermore, Vi also represents a predominant protective antigen and plays a key role in the development of vaccines against typhoid fever. Herein, we reviewed the latest advances associated with the Vi polysaccharide, from its synthesis and transport within bacterial cells, mechanisms involved in virulence, immunological characteristics, and applications in vaccine, as well as its purification and detection methods...
November 21, 2016: Critical Reviews in Microbiology
https://www.readbyqxmd.com/read/27835979/pharmacologically-active-flavonoids-from-the-anticancer-antioxidant-and-antimicrobial-extracts-of-cassia-angustifolia-vahl
#12
Shabina Ishtiaq Ahmed, Muhammad Qasim Hayat, Muhammad Tahir, Qaisar Mansoor, Muhammad Ismail, Kristen Keck, Robert B Bates
BACKGROUND: Cassia angustifolia Vahl. (commonly known as senna makkai or cassia senna), native to Saudi Arabia, Egypt, Yemen and also extensively cultivated in Pakistan, is a medicinal herb used traditionally to cure number of diseases like liver diseases, constipation, typhoid, cholera etc. This study was conducted to evaluate the in-vitro antimicrobial, antioxidant and anticancer assays and phytochemical constituents of aqueous and organic extracts of C. angustifolia leaves. METHODS: The antimicrobial activities of C...
November 11, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27834330/distribution-trends-antibiogram-pattern-of-salmonella-enterica-serovar-newport-in-india
#13
Y Kumar, N Gupta, V B Vaish, S Gupta
BACKGROUND & OBJECTIVES: Salmonellosis is a major public health concern worldwide. Besides typhoidal salmonellae, infections due to non-typhoidal serovars of Salmonella are also associated with high morbidity and mortality leading to huge economic losses. Among non-typhoidal serovars, Salmonella Newport has been reported as a major cause of foodborne infections resulting in outbreaks due to consumption of contaminated food items. Little data related to this serovar are available from India leading to the scarcity of information on the distribution trends of this important serovar in the country...
July 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/27832592/receptor-mediated-sorting-of-typhoid-toxin-during-its-export-from-salmonella-typhi-infected-cells
#14
Shu-Jung Chang, Jeongmin Song, Jorge E Galán
Typhoid toxin is an essential virulence factor of Salmonella Typhi, the cause of typhoid fever. Typhoid toxin is secreted into the lumen of Salmonella-containing vacuole (SCV), after which it is packaged into vesicle carrier intermediates and released extracellularly through incompletely understood mechanisms. Following export, the toxin targets cells by interacting with human-specific Neu5Ac-terminated glycan receptors. We show that typhoid toxin is sorted from the SCV into vesicle carrier intermediates via interactions of its B subunit, PltB, with specific lumenal sialylated glycan packaging receptors...
November 9, 2016: Cell Host & Microbe
https://www.readbyqxmd.com/read/27827853/antimicrobial-usage-and-antimicrobial-resistance-in-animal-production-in-southeast-asia-a-review
#15
REVIEW
Nguyen T Nhung, Nguyen V Cuong, Guy Thwaites, Juan Carrique-Mas
Southeast Asia is an area of great economic dynamism. In recent years, it has experienced a rapid rise in the levels of animal product production and consumption. The region is considered to be a hotspot for infectious diseases and antimicrobial resistance (AMR). We reviewed English-language peer-reviewed publications related to antimicrobial usage (AMU) and AMR in animal production, as well as antimicrobial residues in meat and fish from 2000 to 2016, in the region. There is a paucity of data from most countries and for most bacterial pathogens...
November 2, 2016: Antibiotics
https://www.readbyqxmd.com/read/27825318/prevalence-of-malaria-typhoid-toxoplasmosis-and-rubella-among-febrile-children-in-cameroon
#16
Olivia A Achonduh-Atijegbe, Kenji O Mfuh, Aristid H E Mbange, Jean P Chedjou, Diane W Taylor, Vivek R Nerurkar, Wilfred F Mbacham, Rose Leke
BACKGROUND: The current roll-out of rapid diagnostic tests (RDTs) in many endemic countries has resulted in the reporting of fewer cases of malaria-attributed illnesses. However, lack of knowledge of the prevalence of other febrile illnesses and affordable diagnostic tests means that febrile patients are not managed optimally. This study assessed the prevalence of commonly treatable or preventable febrile illnesses in children between 6 months and 15 years using rapid diagnostic tests at the point-of-care...
November 8, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27812090/diagnosis-of-persistent-fever-in-the-tropics-set-of-standard-operating-procedures-used-in-the-nidiag-febrile-syndrome-study
#17
Emilie Alirol, Ninon Seiko Horie, Barbara Barbé, Veerle Lejon, Kristien Verdonck, Philippe Gillet, Jan Jacobs, Philippe Büscher, Basudha Kanal, Narayan Raj Bhattarai, Sayda El Safi, Thong Phe, Kruy Lim, Long Leng, Pascal Lutumba, Deby Mukendi, Emmanuel Bottieau, Marleen Boelaert, Suman Rijal, François Chappuis
In resource-limited settings, the scarcity of skilled personnel and adequate laboratory facilities makes the differential diagnosis of fevers complex [1-5]. Febrile illnesses are diagnosed clinically in most rural centers, and both Rapid Diagnostic Tests (RDTs) and clinical algorithms can be valuable aids to health workers and facilitate therapeutic decisions [6,7]. The persistent fever syndrome targeted by NIDIAG is defined as presence of fever for at least one week. The NIDIAG clinical research consortium focused on potentially severe and treatable infections and therefore targeted the following conditions as differential diagnosis of persistent fever: visceral leishmaniasis (VL), human African trypanosomiasis (HAT), enteric (typhoid and paratyphoid) fever, brucellosis, melioidosis, leptospirosis, malaria, tuberculosis, amoebic liver abscess, relapsing fever, HIV/AIDS, rickettsiosis, and other infectious diseases (e...
November 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27803169/development-of-a-live-attenuated-bivalent-oral-vaccine-against-shigella-sonnei-shigellosis-and-typhoid-fever
#18
Yun Wu, Sumana Chakravarty, Minglin Li, Tint T Wai, Stephen L Hoffman, B Kim Lee Sim
Shigella sonnei (Ss) and Salmonella Typhi cause significant morbidity and mortality. We exploited the safety record of the oral, attenuated S. Typhi vaccine (Ty21a) by utilizing it as a vector to develop a bivalent oral vaccine to protect against Ss shigellosis and typhoid fever. We recombineered the Ss form I O-antigen gene cluster into the Ty21a chromosome to create Ty21a-Ss, which stably expresses Ss form I O-antigen. To enhance survivability in the acid environment of the stomach, we created an acid resistant strain, Ty21a-AR-Ss, by inserting Shigella glutaminase-glutamate decarboxylase systems co-expressed with Ss form I O-antigen gene...
October 31, 2016: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27802388/identification-of-mhc-bound-peptides-from-dendritic-cells-infected-with-salmonella-enterica-strain-sl1344-implications-for-a-non-typhoidal-salmonella-vaccine
#19
Karuna P Karunakaran, Hong Yu, Xiaozhou Jiang, Queenie Chan, Michael F Goldberg, Marc K Jenkins, Leonard J Foster, Robert C Brunham
Worldwide Salmonella enterica infections result in substantial morbidity and mortality and is the major cause of infant bacteremia in sub Saharan Africa. Diseases caused by Salmonella are treatable with antibiotics but successful antibiotic treatment has become difficult due to antimicrobial resistance and collateral effects on the microbiome. An effective vaccine together with public health efforts may be a better strategy to control these infections. Protective immunity against Salmonella depends primarily on CD4 T cell-mediated immune responses and therefore identifying relevant T cell antigens is necessary for Salmonella vaccine development...
November 1, 2016: Journal of Proteome Research
https://www.readbyqxmd.com/read/27801802/water-related-impacts-of-climate-change-on-agriculture-and-subsequently-on-public-health-a-review-for-generalists-with-particular-reference-to-pakistan
#20
REVIEW
Toqeer Ahmed, Miklas Scholz, Furat Al-Faraj, Wajeeha Niaz
Water-related impacts due to change in climatic conditions ranging from water scarcity to intense floods and storms are increasing in developing countries like Pakistan. Water quality and waterborne diseases like hepatitis, cholera, typhoid, malaria and dengue fever are increasing due to chaotic urbanization, industrialization, poor hygienic conditions, and inappropriate water management. The morbidity rate is high due to lack of health care facilities, especially in developing countries. Organizations linked to the Government of Pakistan (e...
October 27, 2016: International Journal of Environmental Research and Public Health
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