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Infection surveillance

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https://www.readbyqxmd.com/read/28546554/high-throughput-resistance-profiling-of-plasmodium-falciparum-infections-based-on-custom-dual-indexing-and-illumina-next-generation-sequencing-technology
#1
Sidsel Nag, Marlene D Dalgaard, Poul-Erik Kofoed, Johan Ursing, Marina Crespo, Lee O'Brien Andersen, Frank Møller Aarestrup, Ole Lund, Michael Alifrangis
Genetic polymorphisms in P. falciparum can be used to indicate the parasite's susceptibility to antimalarial drugs as well as its geographical origin. Both of these factors are key to monitoring development and spread of antimalarial drug resistance. In this study, we combine multiplex PCR, custom designed dual indexing and Miseq sequencing for high throughput SNP-profiling of 457 malaria infections from Guinea-Bissau, at the cost of 10 USD per sample. By amplifying and sequencing 15 genetic fragments, we cover 20 resistance-conferring SNPs occurring in pfcrt, pfmdr1, pfdhfr, pfdhps, as well as the entire length of pfK13, and the mitochondrial barcode for parasite origin...
May 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28545827/validation-of-the-korean-national-healthcare-associated-infections-surveillance-system-konis-an-intensive-care-unit-module-report
#2
Y G Kwak, J Y Choi, H M Yoo, S-O Lee, H B Kim, S H Han, H J Choi, S R Kim, T H Kim, H K Chun, H-S Koo
BACKGROUND: National surveillance data should be validated to identify methodological problems within the surveillance programme and data quality issues. AIM: To test the validity of healthcare-associated infection (HAI) rate data from the Korean National Healthcare-associated Infections Surveillance System (KONIS). METHODS: Records from intensive care units of 12 (14.8%) of 81 participating hospitals for January-March 2014 were examined. The validation team reviewed 406 medical records of 110 patients with 114 reported HAIs - including 34 urinary tract infections (UTIs), 57 bloodstream infections (BSIs) and 23 cases of pneumonia (PNEU) - and 296 patients with no reported HAIs during one-day visits conducted in August and September 2014...
April 8, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28545558/from-the-epidemiology-of-hepatitis-e-virus-hev-within-the-swine-reservoir-to-public-health-risk-mitigation-strategies-a-comprehensive-review
#3
REVIEW
Morgane Salines, Mathieu Andraud, Nicolas Rose
Hepatitis E virus (HEV) is the causative agent of hepatitis E in humans, an emerging zoonosis mainly transmitted via food in developed countries and for which domestic pigs are recognised as the main reservoir. It therefore appears important to understand the features and drivers of HEV infection dynamics on pig farms in order to implement HEV surveillance programmes and to assess and manage public health risks. The authors have reviewed the international scientific literature on the epidemiological characteristics of HEV in swine populations...
May 25, 2017: Veterinary Research
https://www.readbyqxmd.com/read/28545457/malaria-prevalence-in-asymptomatic-and-symptomatic-children-in-kiwangwa-bagamoyo-district-tanzania
#4
Deborah Sumari, Felista Mwingira, Majige Selemani, Joseph Mugasa, Kefas Mugittu, Paul Gwakisa
BACKGROUND: Malaria prevalence continues to decline across sub-Saharan Africa as a result of various intervention strategies. However, the diseases still poses a public health concern in the region. While symptomatic malaria is recognized and treated, asymptomatic infections become increasingly important for interrupting transmission. A cross-sectional survey was conducted to assess malaria prevalence in symptomatic and asymptomatic children in Kiwangwa ward in Bagamoyo District in Tanzania...
May 25, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28545111/northern-range-expansion-of-the-asian-tiger-mosquito-aedes-albopictus-analysis-of-mosquito-data-from-connecticut-usa
#5
Philip M Armstrong, Theodore G Andreadis, John J Shepard, Michael C Thomas
BACKGROUND: The Asian tiger mosquito (Aedes albopictus) is an invasive species and important arbovirus vector that was introduced into the U.S. in the 1980's where it continues to expand its range. Winter temperature is an important constraint to its northward expansion, with potential range limits located between the 0° and -5°C mean cold month isotherm. Connecticut is located within this climatic zone and therefore, Ae. albopictus was monitored statewide to assess its northern range expansion and to delineate where populations can stably persist...
May 18, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28544285/salmonella-typhi-genomics-envisaging-the-future-of-typhoid-eradication
#6
REVIEW
Kien-Pong Yap, Kwai Lin Thong
Next-generation whole genome sequencing has revolutionized the study of infectious diseases in recent years. The availability of genome sequences and its understanding have transformed the field of molecular microbiology, epidemiology, infection treatments and vaccine developments. We review the key findings of the publicly accessible genomes of Salmonella enterica serovar Typhi since the first complete genome to the most recent release of thousands of S. typhi genomes, which remarkably shape the genomic research of S...
May 24, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28543433/mumps-outbreak-in-a-tribal-population-from-the-union-territory-of-dadra-and-nagar-haveli-india
#7
Siddharth M Tilavat, Sunil R Vaidya, Venkat S Hamde
A cluster of parotitis cases (n=13) were observed in a tribal population of Vansda village from the Union Territory of Dadra and Nagar Haveli, India between 20(th) and 22(nd) week of 2016. Primary information was received by the local Infectious Disease Surveillance Program team, and subsequently field investigations were carried out in the affected area. Active surveillance was conducted till twice the incubation period from onset of the last surveyed case. For the laboratory investigations, 19 serum samples were collected from 11-suspected cases and their close contacts (n=8)...
May 20, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28542602/antimicrobial-resistance-status-of-enterococcus-from-australian-cattle-populations-at-slaughter
#8
Robert S Barlow, Kate E McMillan, Lesley L Duffy, Narelle Fegan, David Jordan, Glen E Mellor
Antimicrobial agents are used in cattle production systems for the prevention and control of bacterial associated diseases. A consequence of their use is the potential development of antimicrobial resistance (AMR). Enterococcus faecium and Enterococcus faecalis that are resistant to antimicrobials are of increased concern to public health officials throughout the world as they may compromise the ability of various treatment regimens to control disease and infection in human medicine. Australia is a major exporter of beef; however it does not have an ongoing surveillance system for AMR in cattle or foods derived from these animals...
2017: PloS One
https://www.readbyqxmd.com/read/28542540/elevation-as-a-proxy-for-mosquito-borne-zika-virus-transmission-in-the-americas
#9
Alexander G Watts, Jennifer Miniota, Heather A Joseph, Oliver J Brady, Moritz U G Kraemer, Ardath W Grills, Stephanie Morrison, Douglas H Esposito, Adriano Nicolucci, Matthew German, Maria I Creatore, Bradley Nelson, Michael A Johansson, Gary Brunette, Simon I Hay, Kamran Khan, Marty Cetron
INTRODUCTION: When Zika virus (ZIKV) first began its spread from Brazil to other parts of the Americas, national-level travel notices were issued, carrying with them significant economic consequences to affected countries. Although regions of some affected countries were likely unsuitable for mosquito-borne transmission of ZIKV, the absence of high quality, timely surveillance data made it difficult to confidently demarcate infection risk at a sub-national level. In the absence of reliable data on ZIKV activity, a pragmatic approach was needed to identify subnational geographic areas where the risk of ZIKV infection via mosquitoes was expected to be negligible...
2017: PloS One
https://www.readbyqxmd.com/read/28542412/low-rates-of-antibiotic-resistance-and-infectious-mortality-in-a-cohort-of-high-risk-hematology-patients-a-single-center-retrospective-analysis-of-blood-stream-infection
#10
Jason R Conn, Elizabeth M Catchpoole, Naomi Runnegar, Sally J Mapp, Kate A Markey
Febrile neutropenia (FN) is a medical emergency and can represent a life-threatening complication for hematology patients treated with intensive chemotherapy regimens. In clinical practice, the diagnostic yield of blood cultures and other investigations which aim to identify a causative organism or site of infection is low. We have retrospectively examined all blood cultures collected in a "real world" cohort of patients receiving chemotherapy for acute leukemia and patients with aggressive lymphoma treated with Hyper-CVAD/MTX-cytarabine, at a single tertiary center over a five-year period...
2017: PloS One
https://www.readbyqxmd.com/read/28542324/epidemiology-of-influenza-b-yamagata-and-b-victoria-lineages-in-south-africa-2005-2014
#11
Mpho Seleka, Florette K Treurnicht, Stefano Tempia, Orienka Hellferscee, Senzo Mtshali, Adam L Cohen, Amelia Buys, Johanna M McAnerney, Terry G Besselaar, Marthi Pretorius, Anne von Gottberg, Sibongile Walaza, Cheryl Cohen, Shabir A Madhi, Marietjie Venter
BACKGROUND: Studies describing the epidemiology of influenza B lineages in South Africa are lacking. METHODS: We conducted a prospective study to describe the circulation of influenza B/Victoria and B/Yamagata lineages among patients of all ages enrolled in South Africa through three respiratory illness surveillance systems between 2005 and 2014: (i) the Viral Watch (VW) program enrolled outpatients with influenza-like illness (ILI) from private healthcare facilities during 2005-2014; (ii) the influenza-like illnesses program enrolled outpatients in public healthcare clinics (ILI/PHC) during 2012-2014; and (iii) the severe acute respiratory illnesses (SARI) program enrolled inpatients from public hospitals during 2009-2014...
2017: PloS One
https://www.readbyqxmd.com/read/28542274/detecting-infection-hotspots-modeling-the-surveillance-challenge-for-elimination-of-lymphatic-filariasis
#12
Julie R Harris, Ryan E Wiegand
BACKGROUND: During the past 20 years, enormous efforts have been expended globally to eliminate lymphatic filariasis (LF) through mass drug administration (MDA). However, small endemic foci (microfoci) of LF may threaten the presumed inevitable decline of infections after MDA cessation. We conducted microsimulation modeling to assess the ability of different types of surveillance to identify microfoci in these settings. METHODS: Five or ten microfoci of radius 1, 2, or 3 km with infection marker prevalence (intensity) of 3, 6, or 10 times background prevalence were placed in spatial simulations, run in R Version 3...
May 19, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28542162/carbapenem-resistant-klebsiella-pneumoniae-in-barbados-driving-change-in-practice-at-the-national-level
#13
Corey Forde, Bryan Stierman, Pilar Ramon-Pardo, Thais Dos Santos, Nalini Singh
INTRODUCTION: Carbapenem-resistant Klebsiella pneumoniae (CRKP) is of growing concern globally. The risk for transmission of antimicrobial resistant organisms across several continents to the Caribbean is a real one given its tourism industry. After a cluster of cases of CRKP were detected, several studies detailed in this report were initiated to better characterize the problem. METHODS: A hospital-wide point prevalence study and active surveillance were performed at Queen Elizabeth Hospital (QEH) in Barbados in 2013 to assess the prevalence of CRKP infection/colonization...
2017: PloS One
https://www.readbyqxmd.com/read/28542123/malaria-surveillance-united-states-2014
#14
Kimberly E Mace, Paul M Arguin
PROBLEM/CONDITION: Malaria in humans is caused by intraerythrocytic protozoa of the genus Plasmodium. These parasites are transmitted by the bite of an infective female Anopheles mosquito. The majority of malaria infections in the United States occur among persons who have traveled to regions with ongoing malaria transmission. However, malaria is occasionally acquired by persons who have not traveled out of the country through exposure to infected blood products, congenital transmission, laboratory exposure, or local mosquitoborne transmission...
May 26, 2017: MMWR. Surveillance Summaries: Morbidity and Mortality Weekly Report. Surveillance Summaries
https://www.readbyqxmd.com/read/28542110/pneumonia-after-liver-transplantation
#15
Stephanie A K Angarita, Tara A Russell, Fady M Kaldas
PURPOSE OF REVIEW: Pneumonia occurs in 8-23% of patients after liver transplantation and contributes considerably to their morbidity and mortality. With the increasing acuity of liver transplantation patients in the current era, pneumonias, particularly ventilator-associated pneumonias, and multidrug-resistant pathogens, are of growing concern. RECENT FINDINGS: Postliver transplantation pneumonia cause varies with the timing of infection. In the early period (<1 month postliver transplantation), nosocomial pneumonias, including ventilator-associated pneumonias and multidrug-resistant species are most common...
May 24, 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/28541807/surgical-site-infection-research-opportunities
#16
Kamal M F Itani, E Patchen Dellinger, John Mazuski, Joseph Solomkin, George Allen, Joan C Blanchard, Rachel Kelz, Sandra I Berríos-Torres
Much has been done to identify measures and modify risk factors to decrease the rate of surgical site infection (SSI). Development of the Centers for Disease Control and Prevention (CDC) Core recommendations for the prevention of SSI revealed evidence gaps in six areas: Parenteral antimicrobial prophylaxis, glycemic control, normothermia, oxygenation, antiseptic prophylaxis, and non-parenteral antimicrobial prophylaxis. Using a modified Delphi process, seven SSI content experts identified nutritional status, smoking, obesity, surgical technique, and anemia as additional areas for SSI prevention research...
May 2017: Surgical Infections
https://www.readbyqxmd.com/read/28540765/an-update-on-pediatric-bronchiectasis
#17
Danielle F Wurzel, Anne B Chang
The prevalence and awareness of bronchiectasis not related to cystic fibrosis (CF) is increasing and it is now recognized as a major cause of respiratory morbidity, mortality and healthcare utilization worldwide. The need to elucidate the early origins of bronchiectasis is increasingly appreciated and has been identified as an important research priority. Current treatments for pediatric bronchiectasis are limited to antimicrobials, airway clearance techniques and vaccination. Several new drugs targeting airway inflammation are currently in development...
May 25, 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28540733/hiv-risk-prevalence-and-access-to-care-among-men-who-have-sex-with-men-in-lebanon
#18
Robert Heimer, Russell Barbour, Danielle Khoury, Forrest W Crawford, Fatma Mohamed Shebl, Elie Aaraj, Kaveh Khoshnood
OBJECTIVE: Little is known about HIV prevalence and risk among men who have sex with men in much of the Middle East, including Lebanon. Recent national level surveillance has suggested an increase in HIV prevalence concentrated among men in Lebanon. We undertook a biobehavioral study to provide direct evidence for the spread of HIV. DESIGN: . MSM were recruited by respondent driven sampling, interviewed, and offered HIV testing anonymously at sites located in Beirut, Lebanon from October 2014 through February 2015...
May 25, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28539579/serotyping-and-genetic-characterization-of-hand-foot-and-mouth-disease-hfmd-associated-enteroviruses-of-no-ev71-and-non-cva16-circulating-in-fujian-china-2011-2015
#19
Yuwei Weng, Wei Chen, Wenxiang He, Meng Huang, Ying Zhu, Yansheng Yan
BACKGROUND Hand, foot, and mouth disease (HFMD) is a common contagious disease in infants; it is caused by multiple serotypes of human enterovirus (EV), which belongs to the enterovirus genus of the picornavirus family. According to sentinel surveillance, infection with EVs other than EV71 and CVA 16 have become increasingly common in recent years among HFMD patients, posing new challenges for HFMD control. This study aimed to explore the spectrum of serotypes in the other EVs (non-EV71 and non-CVA16) in Fujian province in southeastern China...
May 25, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28539254/prevalence-of-primary-resistance-among-acutely-recently-hiv-infected-patients-in-rio-de-janeiro-brazil
#20
Ana Cristina G Ferreira, Lara E Coelho, Eduarda Grinsztejn, Carlos S de Jesus, Monick L Guimarães, Valdilea G Veloso, Beatriz Grinsztejn, Sandra W Cardoso
INTRODUCTION: The widespread use of antiretroviral therapy (ART) increased the transmission of antiretroviral resistant HIV strains. ART initiation during acute/recent HIV infection limits HIV reservoirs and improves immune response in HIV infected individuals. Transmitted drug resistance (TDR) may jeopardize the early goals of early ART among acute/recent HIV infected patients. METHODS: Patients with acute/recent HIV infection who underwent resistance test before ART initiation were included in this analysis...
May 21, 2017: Brazilian Journal of Infectious Diseases
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