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Epidemiology and Infection

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https://www.readbyqxmd.com/read/28737121/the-impact-of-cancer-development-on-the-risk-of-mycobacterial-diseases-among-rheumatoid-arthritis-patients
#1
S-W Pan, Y-F Yen, Y R Kou, P-H Chuang, J-Y Feng, Y-J Chan, W-J Su
Mycobacterial diseases are prevalent in cancer and rheumatoid arthritis (RA) patients, especially those receiving tumor necrosis factor-α inhibitor (TNFi). However, the impact of cancer development on the risk of mycobacterial diseases among RA patients is unknown. Data from the Taiwan National Health Insurance Research Database were used to conduct a retrospective study to assess the occurrence of mycobacterial diseases in RA patients developing cancer (cancer-positive), those using TNFi (TNFi-exposure), those with cancer and using TNFi (cancer-TNFi-comb), and those without cancer and not using TNFi (cancer-TNFi-free)...
July 24, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28737119/passive-surveillance-of-united-kingdom-bats-for-lyssaviruses-2005-2015
#2
E L Wise, D A Marston, A C Banyard, H Goharriz, D Selden, N Maclaren, T Goddard, N Johnson, L M McElhinney, A Brouwer, J N Aegerter, G C Smith, D L Horton, A C Breed, A R Fooks
Passive surveillance for lyssaviruses in UK bats has been ongoing since 1987 and has identified 13 cases of EBLV-2 from a single species; Myotis daubentonii. No other lyssavirus species has been detected. Between 2005 and 2015, 10 656 bats were submitted, representing 18 species, creating a spatially and temporally uneven sample of British bat fauna. Uniquely, three UK cases originate from a roost at Stokesay Castle in Shropshire, England, where daily checks for grounded and dead bats are undertaken and bat carcasses have been submitted for testing since 2007...
July 24, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28726598/pandemic-related-health-behavior-repeat-episodes-of-influenza-like-illness-related-to-the-2009-h1n1-influenza-pandemic
#3
O Mgbere, K Ngo, S Khuwaja, M Mouzoon, A Greisinger, R Arafat, J Markee
The Houston Health Department (HHD) in Texas tracks influenza-like illness (ILI) in the community through its Influenza Sentinel Surveillance Program, which began in 2008. After the influenza A(H1N1) pandemic (pH1N1) in 2009, investigators sought to assess the feasibility of this program as a non-traditional data source for tracking and monitoring care-seeking activities. Through the process of characterizing and describing patients who had 'return visits', or who were considered the heaviest ILI-related care-utilizers, the investigators sought to understand the strengths and limitations of this data source...
July 20, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28726597/serological-and-molecular-diagnostic-tests-for-canine-visceral-leishmaniasis-in-brazilian-endemic-area-one-out-of-five-seronegative-dogs-are-infected
#4
E G Lopes, A P Sevá, F Ferreira, C M Nunes, L B Keid, R M Hiramoto, H L Ferreira, T M F S Oliveira, M F D Bigotto, F Galvis-Ovallos, E A B Galati, R M Soares
Euthanasia of infected dogs is one of the measures adopted in Brazil to control visceral leishmaniasis (VL) in endemic areas. To detect infected dogs, animals are screened with the rapid test DPP® Visceral Canine Leishmaniasis for detection of antibodies against K26/K39 fusion antigens of amastigotes (DPP). DPP-positives are confirmed with an immunoenzymatic assay probing soluble antigens of promastigotes (ELISA), while DPP-negatives are considered free of infection. Here, 975 dogs from an endemic region were surveyed by using DPP, ELISA and real-time PCR (qPCR) for the diagnosis of VL...
July 20, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28726595/co-circulation-and-co-infections-of-all-dengue-virus-serotypes-in-hyderabad-india-2014
#5
K Vaddadi, C Gandikota, P K Jain, V S V Prasad, M Venkataramana
The burden of dengue virus infections increased globally during recent years. Though India is considered as dengue hyper-endemic country, limited data are available on disease epidemiology. The present study includes molecular characterization of dengue virus strains occurred in Hyderabad, India, during the year 2014. A total of 120 febrile cases were recruited for this study, which includes only children and 41 were serologically confirmed for dengue positive infections using non-structural (NS1) and/or IgG/IgM ELISA tests...
July 20, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28724455/a-seroprevalence-study-to-determine-the-frequency-of-hantavirus-infection-in-people-exposed-to-wild-and-pet-fancy-rats-in-england
#6
J M Duggan, R Close, L McCann, D Wright, M Keys, N McCarthy, T Mannes, A Walsh, A Charlett, T J G Brooks
Recent cases of acute kidney injury due to Seoul hantavirus infection from exposure to wild or pet fancy rats suggest this infection is increasing in prevalence in the UK. We conducted a seroprevalence study in England to estimate cumulative exposure in at-risk groups with contact with domesticated and wild rats to assess risk and inform public health advice. From October 2013 to June 2014, 844 individual blood samples were collected. Hantavirus seroprevalence amongst the pet fancy rat owner group was 34.1% (95% CI 23·9-45·7%) compared with 3·3% (95% CI 1·6-6·0) in a baseline control group, 2·4% in those with occupational exposure to pet fancy rats (95% CI 0·6-5·9) and 1·7% with occupational exposure to wild rats (95% CI 0·2-5·9)...
July 20, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28712369/a-hospital-based-matched-case-control-study-to-identify-risk-factors-for-clinical-infection-with-oxa-48-producing-klebsiella-pneumoniae-in-rectal-carriers
#7
A Madueño, J Gonzalez Garcia, A Aguirre-Jaime, M Lecuona
Asymptomatic colonisation of the gastrointestinal tract by carbapenemase-producing Enterobacteriaceae is an important reservoir for transmission, which may precede infection. This retrospective observational case-control study was designed to identify risk factors for developing clinical infection with OXA-48-producing Klebsiella pneumoniae in rectal carriers during hospitalisation. Case patients (n = 76) had carbapenemase-producing K. pneumoniae (CPKP) infection and positive rectal culture for CPKP. Control patients (n = 174) were those with rectal colonisation with CPKP but without CPKP infection...
July 17, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28693637/the-effects-of-ambient-temperature-and-heatwaves-on-daily-campylobacter-cases-in-adelaide-australia-1990-2012
#8
A Milazzo, L C Giles, Y Zhang, A P Koehler, J E Hiller, P Bi
Campylobacter spp. is a commonly reported food-borne disease with major consequences for morbidity. In conjunction with predicted increases in temperature, proliferation in the survival of microorganisms in hotter environments is expected. This is likely to lead, in turn, to an increase in contamination of food and water and a rise in numbers of cases of infectious gastroenteritis. This study assessed the relationship of Campylobacter spp. with temperature and heatwaves, in Adelaide, South Australia. We estimated the effect of (i) maximum temperature and (ii) heatwaves on daily Campylobacter cases during the warm seasons (1 October to 31 March) from 1990 to 2012 using Poisson regression models...
July 11, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28689517/an-assessment-of-irish-farmers-knowledge-of-the-risk-of-spread-of-infection-from-animals-to-humans-and-their-transmission-prevention-practices
#9
M M Mahon, M C Sheehan, P F Kelleher, A J Johnson, S M Doyle
The aim of this study was to ascertain farmers' knowledge of the risk of spread of infection from animals to humans, and their transmission prevention practices. This was a survey of farmers who submitted material to Ireland's Regional Veterinary Laboratories in 2015. There was an 84% response rate (1044 farmers). Ninety per cent of farmers were not aware that infection can be acquired from apparently healthy animals. Over half were not aware that disease could be contracted from sick poultry or pets. Conversely, the knowledge of the risk to pregnant women of infection from birthing animals was high (88%)...
July 10, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28689510/outbreak-characteristics-associated-with-identification-of-contributing-factors-to-foodborne-illness-outbreaks
#10
L G Brown, E R Hoover, C A Selman, E W Coleman, H Schurz Rogers
Information on the factors that cause or amplify foodborne illness outbreaks (contributing factors), such as ill workers or cross-contamination of food by workers, is critical to outbreak prevention. However, only about half of foodborne illness outbreaks reported to the United States' Centers for Disease Control and Prevention (CDC) have an identified contributing factor, and data on outbreak characteristics that promote contributing factor identification are limited. To address these gaps, we analyzed data from 297 single-setting outbreaks reported to CDC's new outbreak surveillance system, which collects data from the environmental health component of outbreak investigations (often called environmental assessments), to identify outbreak characteristics associated with contributing factor identification...
July 10, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28689507/a-survey-of-zoonotic-pathogens-carried-by-house-mouse-and-black-rat-populations-in-yucatan-mexico
#11
J A Panti-May, R R C DE Andrade, Y Gurubel-González, E Palomo-Arjona, L Sodá-Tamayo, J Meza-Sulú, M Ramírez-Sierra, E Dumonteil, V M Vidal-Martínez, C Machaín-Williams, D DE Oliveira, M G Reis, M A Torres-Castro, M R Robles, S F Hernández-Betancourt, F Costa
The house mouse (Mus musculus) and the black rat (Rattus rattus) are reservoir hosts for zoonotic pathogens, several of which cause neglected tropical diseases (NTDs). Studies of the prevalence of these NTD-causing zoonotic pathogens, in house mice and black rats from tropical residential areas are scarce. Three hundred and two house mice and 161 black rats were trapped in 2013 from two urban neighbourhoods and a rural village in Yucatan, Mexico, and subsequently tested for Trypanosoma cruzi, Hymenolepis diminuta and Leptospira interrogans...
July 10, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28689506/description-and-validation-of-a-new-automated-surveillance-system-for-clostridium-difficile-in-denmark
#12
M Chaine, S Gubbels, M Voldstedlund, B Kristensen, J Nielsen, L P Andersen, S Ellermann-Eriksen, J Engberg, A Holm, B Olesen, H C Schønheyder, C Østergaard, S Ethelberg, K Mølbak
The surveillance of Clostridium difficile (CD) in Denmark consists of laboratory based data from Departments of Clinical Microbiology (DCMs) sent to the National Registry of Enteric Pathogens (NREP). We validated a new surveillance system for CD based on the Danish Microbiology Database (MiBa). MiBa automatically collects microbiological test results from all Danish DCMs. We built an algorithm to identify positive test results for CD recorded in MiBa. A CD case was defined as a person with a positive culture for CD or PCR detection of toxin A and/or B and/or binary toxin...
July 10, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28677517/estimating-age-time-dependent-malaria-force-of-infection-accounting-for-unobserved-heterogeneity
#13
L Mugenyi, S Abrams, N Hens
Despite well-recognized heterogeneity in malaria transmission, key parameters such as the force of infection (FOI) are generally estimated ignoring the intrinsic variability in individual infection risks. Given the potential impact of heterogeneity on the estimation of the FOI, we estimate this quantity accounting for both observed and unobserved heterogeneity. We used cohort data of children aged 0·5-10 years evaluated for the presence of malaria parasites at three sites in Uganda. Assuming a Susceptible-Infected-Susceptible model, we show how the FOI relates to the point prevalence, enabling the estimation of the FOI by modelling the prevalence using a generalized linear mixed model...
July 5, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28677516/seroepidemiology-of-toxoplasma-gondii-infection-in-patients-with-liver-disease-in-eastern-china
#14
A L Tian, G X Li, H M Elsheikha, D S Gardner, X Y Zhang, W Dong, X P Yang, Y Y Luo, H L Li, W Cong, X Q Zhu
The role of the protozoan parasite Toxoplasma gondii in the pathogenesis of liver disease has recently gained much interest. The aim of this study was to determine the prevalence and risk factors associated with T. gondii infection in patients with liver disease from three cities in Shandong and Henan provinces, China. A case-control study was conducted from December 2014 to November 2015 and included 1142 patients with liver disease and 1142 healthy controls. Serum samples were collected from all individuals and were examined with enzyme-linked immunosorbent assay for the presence of anti-T...
July 5, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28675138/comparison-of-quantiferon-tb-gold-in-tube-qft-git-and-tuberculin-skin-test-tst-for-diagnosis-of-latent-tuberculosis-in-haemodialysis-hd-patients-a-meta-analysis-of-%C3%AE%C2%BA-estimates-erratum
#15
E Ayubi, A Doosti-Irani, A Sanjari Moghaddam, S Khazaei, K Mansori, S Safiri, M Sani, E Mostafavi
No abstract text is available yet for this article.
July 4, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28669370/an-isolated-outbreak-of-diphtheria-in-south-africa-2015-erratum
#16
S Mahomed, M Archary, P Mutevedzi, Y Mahabeer, P Govender, G Ntshoe, W Kuhn, J Thomas, A Olowolagba, L Blumberg, K McCarthy, K Mlisana, M DU Plessis, A VON Gottberg, P Moodley
No abstract text is available yet for this article.
July 3, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28669365/incidence-of-pneumonia-in-nursing-home-residents-with-dementia-in-the-netherlands-an-estimation-based-on-three-differently-designed-studies
#17
T P Zomer, T VAN DER Maaden, A B VAN Gageldonk-Lafeber, S C DE Greeff, J T VAN DER Steen, L Verhoef
Pneumonia leads to considerable morbidity and mortality in nursing home residents with dementia. We assessed pneumonia incidence based on data from three different studies: (1) real-time national surveillance of healthcare-associated infections in nursing home residents in 2009-2015; (2) a randomized controlled trial in 2012-2015 to assess effects of a practical guideline in nursing home residents with dementia and pneumonia; and (3) a study in 2007-2010 to assess quality of dying in newly admitted nursing home residents with dementia...
July 3, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28669361/a-systematic-review-and-meta-analysis-on-the-incubation-period-of-campylobacteriosis
#18
A Awofisayo-Okuyelu, I Hall, G Adak, J I Hawker, S Abbott, N McCARTHY
Accurate knowledge of pathogen incubation period is essential to inform public health policies and implement interventions that contribute to the reduction of burden of disease. The incubation period distribution of campylobacteriosis is currently unknown with several sources reporting different times. Variation in the distribution could be expected due to host, transmission vehicle, and organism characteristics, however, the extent of this variation and influencing factors are unclear. The authors have undertaken a systematic review of published literature of outbreak studies with well-defined point source exposures and human experimental studies to estimate the distribution of incubation period and also identify and explain the variation in the distribution between studies...
July 3, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28651680/full-genome-sequence-analysis-of-an-uncommon-norovirus-genotype-gii-21-from-south-korea
#19
J W Lee, S G Lee, H G Cho, Y J Park, J W Yun, C J Park, S Y Paik
Noroviruses (NoVs) are major causal agents of acute gastroenteritis in humans. NoV GII.4 is the predominant genotype globally. However, uncommon and minor types of NoVs are consistently detected and some have been shown to dominate over GII.4. Therefore, the prevalence of dominant and uncommon NoVs makes the identification of these viruses important for the prediction and prevention of pandemics. In this study, the full-genome sequence of a NoV (strain JW) detected in Korea was extensively characterized. The full-length genome was 7510 nucleotides long, and phylogenetic analysis based on the whole-genome sequences, including open reading frame (ORF)1, ORF2, and ORF3, indicated that it belonged to the GII...
June 27, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28651652/the-association-between-measurements-of-antimicrobial-use-and-resistance-in-the-faeces-microbiota-of-finisher-batches
#20
V D Andersen, L V DE Knegt, P Munk, M S Jensen, Y Agersø, F M Aarestrup, H Vigre
The objectives were to present three approaches for calculating antimicrobial (AM) use in pigs that take into account the rearing period and rearing site, and to study the association between these measurements and phenotypical resistance and abundance of resistance genes in faeces samples from 10 finisher batches. The AM use was calculated relative to the rearing period of the batches as (i) 'Finisher Unit Exposure' at unit level, (ii) 'Lifetime Exposure' at batch level and (iii) 'Herd Exposure' at herd level...
June 27, 2017: Epidemiology and Infection
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