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Shigella and 2015

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https://www.readbyqxmd.com/read/28098543/increasing-antibiotic-resistance-in-shigella-spp-from-infected-new-york-city-residents-new-york-usa
#1
Kenya Murray, Vasudha Reddy, John S Kornblum, HaeNa Waechter, Ludwin F Chicaiza, Inessa Rubinstein, Sharon Balter, Sharon K Greene, Sarah L Braunstein, Jennifer L Rakeman, Catherine M Dentinger
Approximately 20% of Shigella isolates tested in New York City, New York, USA, during 2013-2015 displayed decreased azithromycin susceptibility. Case-patients were older and more frequently male and HIV infected than those with azithromycin-susceptible Shigella infection; 90% identified as men who have sex with men. Clinical interpretation guidelines for azithromycin resistance and outcome studies are needed.
February 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28098533/azithromycin-nonsusceptible-shigella-flexneri-3a-in-men-who-have-sex-with-men-taiwan-2015-2016
#2
Ying-Shu Liao, Yen-Yi Liu, Yi-Chun Lo, Chien-Shun Chiou
We report an outbreak of azithromycin-nonsusceptible Shigella flexneri 3a infection in Taiwan associated with men who have sex with men. The bacterial strains belonged to the sublineage A of a recently reported outbreak lineage associated with men who have sex with men, characterized by reduced azithromycin susceptibility and circulation in shigellosis low-risk regions.
February 2016: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28028547/recent-outbreaks-of-shigellosis-in-california-caused-by-two-distinct-populations-of-shigella-sonnei-with-either-increased-virulence-or-fluoroquinolone-resistance
#3
Varvara K Kozyreva, Guillaume Jospin, Alexander L Greninger, James P Watt, Jonathan A Eisen, Vishnu Chaturvedi
Shigella sonnei has caused unusually large outbreaks of shigellosis in California in 2014 and 2015. Preliminary data indicated the involvement of two distinct bacterial populations, one from San Diego and San Joaquin (SDi/SJo) and one from the San Francisco (SFr) Bay area. Whole-genome analysis and antibiotic susceptibility testing of 68 outbreak and archival isolates of S. sonnei were performed to investigate the microbiological factors related to these outbreaks. Both SDi/SJo and SFr populations, as well as almost all of the archival S...
November 2016: MSphere
https://www.readbyqxmd.com/read/27965649/the-12-gastrointestinal-pathogens-spectrum-of-acute-infectious-diarrhea-in-a-sentinel-hospital-shenzhen-china
#4
Hongwei Shen, Jinjin Zhang, Yinghui Li, Sirou Xie, Yixiang Jiang, Yanjie Wu, Yuhui Ye, Hong Yang, Haolian Mo, Chaoman Situ, Qinghua Hu
Acute infectious gastroenteritis is one of the most common diseases among all ages, particularly in developing countries. The pathogen spectrum may differ among different regions and seasons. To investigate the etiology of acute diarrhea in Shenzhen, a prospective study was conducted from August 2014 to September 2015. Stools from 412 patients with diarrhea (286 of whom were adults) including the general epidemiological information of the patients were collected. The 19 pathogens were detected by conventional culture method or multiplex PCR assay, which included five viruses (rotavirus, adenovirus, sapovirus, norovirus, and astrovirus), 11 bacterial pathogens (Salmonella, Campylobacter jejuni, Shigella, Listeria monocytogenes, Vibrio parahaemolyticus, Vibrio cholera, Enterohemorrhagic (EHEC), enteropathogenic (EPEC), enteroinvasive (EIEC), enterotoxigenic (ETEC); and enteroaggregative Escherichia coli (EAEC)) and three parasites (Entamoeba histolytica, Giardia lamblia, and Cryptosporidium parvum)...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27931682/fluoroquinolone-consumption-and-resistance-trends-in-mycobacterium-tuberculosis-and-other-respiratory-pathogens-ecological-antibiotic-pressure-and-consequences-in-pakistan-2009-2015
#5
S Shakoor, S Tahseen, K Jabeen, R Fatima, F R Malik, A H Rizvi, R Hasan
OBJECTIVE/BACKGROUND: Fluoroquinolones (FQs) are important anti-tuberculous drugs for the treatment of multidrug-resistant (MDR) tuberculosis. Resistance to FQs leads to fewer options for treatment of tuberculosis (TB), and infection with such strains may also require longer treatment duration. Trends of resistance in Mycobacterium tuberculosis (MTB) are indicators of MTB-resistance evolution. Drivers of such resistance need to be understood and studied to inform preventive strategies...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/27891182/case-control-study-of-diarrheal-disease-etiology-in-individuals-over-5%C3%A2-years-in-southwest-china
#6
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/27871241/prevalence-antimicrobial-susceptibility-patterns-and-associated-risk-factors-of-shigella-and-salmonella-among-food-handlers-in-arba-minch-university-south-ethiopia
#7
Mohammedaman Mama, Getaneh Alemu
BACKGROUND: The availability of safe food improves health of the people that contributes to productivity and provides an effective platform for development and poverty alleviation. On the other hand, unsafe food handling and processing can serve as a vehicle for the transmission of a variety of disease causing agents. The risk of food getting contaminated depends largely on the health status of the food handlers, their personal hygiene, knowledge and practice of food hygiene. Food borne diseases are therefore a public health problem in developed and developing countries which is also true for Ethiopia...
November 21, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27849049/alterations-in-the-airborne-bacterial-community-during-asian-dust-events-occurring-between-february-and-march-2015-in-south-korea
#8
Seho Cha, Dongwook Lee, Jun Hyeong Jang, Sora Lim, Dahye Yang, Taegun Seo
During Asian dust events, a relatively high concentration of particulate matter is transported by wind from arid and semi-arid regions, such as the Gobi and Taklamakan deserts, to nearby countries, including China, Korea, and Japan. The dust particles contain various microorganisms, which can affect human health as well as the environmental microbe population. In the current study, we investigated the characteristics of the airborne bacterial community during Asian dust events between February and March 2015 in South Korea...
November 16, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27814742/shigellosis-in-nepal-13%C3%A2-years-review-of-nationwide-surveillance
#9
Geeta Shakya, Jyoti Acharya, Shailaja Adhikari, Nisha Rijal
BACKGROUND: Shigella is a major cause of gastroenteritis especially in children. In developing countries, the incidence is frequent and results are often life threatening. Changing epidemiology and emerging antibiotic resistance warrants continuous monitoring of susceptibility. The present study highlights the changing epidemiology and drug resistance patterns of Shigella isolated at different hospitals of Nepal over a period of 13 years (Jan. 2003-Dec. 2015). METHODS: This study was carried out in 12 participating laboratories...
November 4, 2016: Journal of Health, Population, and Nutrition
https://www.readbyqxmd.com/read/27767929/esbl-producing-and-macrolide-resistant-shigella-sonnei-infections-among-men-who-have-sex-with-men-england-2015
#10
Piers Mook, Jacquelyn McCormick, Manpreet Bains, Lauren A Cowley, Marie A Chattaway, Claire Jenkins, Amy Mikhail, Gwenda Hughes, Richard Elson, Martin Day, Rohini Manuel, Jayshree Dave, Nigel Field, Gauri Godbole, Timothy Dallman, Paul Crook
In England in 2015, Shigella sonnei isolates from men who have sex with men produced extended-spectrum β-lactamases and exhibited macrolide resistance. Whole-genome sequencing showed a close relationship among the isolates, which harbored a plasmid that was previously identified in a shigellosis outbreak among this population but has acquired a mobile element.
November 2016: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/27706388/-emergence-of-cmy-2-type-plasmid-mediated-ampc-%C3%AE-lactamase-in-shigella-sonnei-and-salmonella-spp-in-costa-rica-2003-2015
#11
Anamariela Tijerino Ayala, Hilda María Bolaños Acuña, María Teresa Acuña Calvo, José Luis Vargas Morales, Elena Campos Chacón
Plasmid-mediated AmpC are enzymes belonging to the group of β-lactamases and encoded by bla AmpC genes. Of these enzymes, those known as type CMY-2 are the most frequently reported worldwide. Detection of enterobacteria that produce CMY-2-type plasmid-mediated AmpC is clinically important since the use of β-lactam antibiotics can result in treatment failure. It is also important from a public health standpoint owing to the capacity for conjugative plasmid transfer to other enterobacteria, both within the community and in nosocomial environments...
August 2016: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
https://www.readbyqxmd.com/read/27533624/elevated-risk-for-antimicrobial-drug-resistant-shigella-infection-among-men-who-have-sex-with-men-united-states-2011-2015
#12
Anna Bowen, Julian Grass, Amelia Bicknese, Davina Campbell, Jacqueline Hurd, Robert D Kirkcaldy
Shigella spp. cause ≈500,000 illnesses in the United States annually, and resistance to ciprofloxacin, ceftriaxone, and azithromycin is emerging. We investigated associations between transmission route and antimicrobial resistance among US shigellosis clusters reported during 2011-2015. Of 32 clusters, 9 were caused by shigellae resistant to ciprofloxacin (3 clusters), ceftriaxone (2 clusters), or azithromycin (7 clusters); 3 clusters were resistant to >1 of these drugs. We observed resistance to any of these drugs in all 7 clusters among men who have sex with men (MSM) but in only 2 of the other 25 clusters (p<0...
September 2016: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/27532684/multidrug-resistant-shigella-infections-in-patients-with-diarrhea-cambodia-2014-2015
#13
Kamonporn Poramathikul, Ladaporn Bodhidatta, Sivhour Chiek, Wilawan Oransathid, Sirigade Ruekit, Panida Nobthai, Woradee Lurchachaiwong, Oralak Serichantalergs, Chanthap Lon, Brett Swierczewski
We observed multidrug resistance in 10 (91%) of 11 Shigella isolates from a diarrheal surveillance study in Cambodia. One isolate was resistant to fluoroquinolones and cephalosporins and showed decreased susceptibility to azithromycin. We found mutations in gyrA, parC, β-lactamase, and mphA genes. Multidrug resistance increases concern about shigellosis treatment options.
September 2016: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/27513523/notes-from-the-field-shigellosis-outbreak-among-men-who-have-sex-with-men-and-homeless-persons-oregon-2015-2016
#14
Jonas Z Hines, Taylor Pinsent, Kathleen Rees, Jennifer Vines, Anna Bowen, Jacqueline Hurd, Richard F Leman, Katrina Hedberg
In July 2015, Shigella sonnei infections with a specific pulsed-field gel electrophoresis (PFGE) pattern linked to a multistate outbreak were recognized among men who have sex with men (MSM) in the Portland metropolitan area, and an outbreak investigation was initiated. During November 2015, isolates with PFGE patterns indistinguishable from the outbreak strain were identified in cases reported in four women, none of whom had epidemiologic links to other affected persons; however, three reported homelessness...
August 12, 2016: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/27494616/the-emergence-of-quinolone-resistant-shigella-sonnei-pondicherry-india
#15
Ankita Das, Mailan Natarajan, Jharna Mandal
Ciprofloxacin resistant Shigella sonnei across the globe have been increasing alarmingly. In order to understand the emergence of S.sonnei with respect to ciprofloxacin resistance in our patient population, the following study was carried out. Of the 184 Shigella sp. Isolated from 2012 to 2015, 34 S.sonnei which were confirmed by standard methods and subjected to antimicrobial susceptibility testing were selected. The minimum inhibitory concentrations (MICs) of 16/34 quinolone resistant isolates tested ranged from 4micrograms/ml to 16micrograms/ml for ciprofloxacin, from 16 micrograms/ml to 64 micrograms/ml for ofloxacin and from 16micrograms/ml to 64micrograms/ml for levofloxacin...
2016: PloS One
https://www.readbyqxmd.com/read/27349521/impact-of-co-infections-with-enteric-pathogens-on-children-suffering-from-acute-diarrhea-in-southwest-china
#16
Shun-Xian Zhang, Yong-Ming Zhou, Wen Xu, Li-Guang Tian, Jia-Xu Chen, Shao-Hong Chen, Zhi-Sheng Dang, Wen-Peng Gu, Jian-Wen Yin, Emmanuel Serrano, Xiao-Nong Zhou
BACKGROUND: Acute diarrhea is a global health problem, resulting in high morbidity and mortality in children. It has been suggested that enteric pathogen co-infections play an important role in gastroenteritis, but most research efforts have only focused on a small range of species belonging to a few pathogen groups. This study aimed to assess the impact of co-infections with a broad range of enteric pathogens on children aged below five years who suffer from acute diarrhea in southwest China...
June 27, 2016: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/27302408/use-of-whole-genome-sequencing-for-the-public-health-surveillance-of-shigella-sonnei-in-england-and-wales-2015
#17
Timothy J Dallman, Marie A Chattaway, Piers Mook, Gauri Godbole, Paul D Crook, Claire Jenkins
No abstract text is available yet for this article.
August 2016: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/27180973/resistant-shigella-strains-in-refugees-august-october-2015-greece
#18
T Georgakopoulou, G Mandilara, K Mellou, K Tryfinopoulou, A Chrisostomou, H Lillakou, C Hadjichristodoulou, A Vatopoulos
Shigellosis is endemic in most developing countries and thus a known risk in refugees and internally displaced persons. In 2015, a massive influx of refugees into Greece, due to the political crisis in the Middle East, led to the development of appropriate conditions for outbreaks of communicable diseases as shigellosis. We present a cluster of 16 shigellosis cases in refugees, detected by the implementation of a syndromic notification system in one transit centre in Athens, between 20 August and 7 October 2015...
August 2016: Epidemiology and Infection
https://www.readbyqxmd.com/read/27090630/detection-of-the-plasmid-mediated-mcr-1-gene-conferring-colistin-resistance-in-human-and-food-isolates-of-salmonella-enterica-and-escherichia-coli-in-england-and-wales
#19
Michel Doumith, Gauri Godbole, Philip Ashton, Lesley Larkin, Tim Dallman, Martin Day, Michaela Day, Berit Muller-Pebody, Matthew J Ellington, Elizabeth de Pinna, Alan P Johnson, Katie L Hopkins, Neil Woodford
OBJECTIVES: In response to the first report of transmissible colistin resistance mediated by the mcr-1 gene in Escherichia coli and Klebsiella spp. from animals and humans in China, we sought to determine its presence in Enterobacteriaceae isolated in the UK. METHODS: The PHE archive of whole-genome sequences of isolates from surveillance collections, submissions to reference services and research projects was retrospectively analysed for the presence of mcr-1 using Genefinder...
August 2016: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/26982255/shiga-toxin-1-producing-shigella-sonnei-infections-california-united-states-2014-2015
#20
Katherine Lamba, Jennifer A Nelson, Akiko C Kimura, Alyssa Poe, Joan Collins, Annie S Kao, Laura Cruz, Gregory Inami, Julie Vaishampayan, Alvaro Garza, Vishnu Chaturvedi, Duc J Vugia
Shiga toxins (Stx) are primarily associated with Shiga toxin-producing Escherichia coli and Shigella dysenteriae serotype 1. Stx production by other shigellae is uncommon, but in 2014, Stx1-producing S. sonnei infections were detected in California. Surveillance was enhanced to test S. sonnei isolates for the presence and expression of stx genes, perform DNA subtyping, describe clinical and epidemiologic characteristics of case-patients, and investigate for sources of infection. During June 2014-April 2015, we identified 56 cases of Stx1-producing S...
April 2016: Emerging Infectious Diseases
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