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https://www.readbyqxmd.com/read/28214920/detection-of-brucella-sp-infection-through-serological-microbiological-and-molecular-methods-applied-to-buffaloes-in-maranh%C3%A3-o-state-brazil
#1
Larissa Sarmento Dos Santos, Joicy Cortez Sá, Diego Luiz Dos Santos Ribeiro, Nancyleni Pinto Chaves, Juliana Pinto da Silva Mol, Renato Lima Santos, Tatiane Alves da Paixão, Alcina Vieira de Carvalho Neta
The aim of the current study is to diagnose Brucella spp. infection using methods such as serology, bacterial isolation, and molecular analysis in buffaloes bred in Maranhão State. In order to do so, 390 samples of buffalo serum were subjected to serological tests, to Rose Bengal Plate Test (RBPT) and to 2-mercaptoethanol (2-ME) combined with slow agglutination test (SAT). Vaginal swabs were collected from seropositive animals and subjected to bacterial isolation and to generic PCR. According to the serological test, 16 animals had a positive reaction to the confirmatory test (2-ME/SAT)...
February 18, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28196298/human-to-human-transmission-of-brucella-a-systematic-review
#2
REVIEW
Felipe F Tuon, Regina B Gondolfo, Natacha Cerchiari
OBJECTIVE: The most common form of transmitting human brucellosis is through contaminated food or direct contact with infected animals. Human-to-human transmission (HHT) has been described as isolated case reports. The aim of this systematic review was to describe all cases of HHT of human brucellosis reported in the medical literature. METHODS: A literature search was conducted using PubMed, Scopus and Scielo databases using specific search terms published until March 2016...
February 14, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28183751/genome-sequences-of-human-and-livestock-isolates-of-brucella-melitensis-and-brucella-abortus-from-the-country-of-georgia
#3
Ketevan Sidamonidze, Jun Hang, Yu Yang, George Dzavashvili, Ekaterine Zhgenti, Nino Trapaidze, Paata Imnadze, Mikeljon P Nikolich
Brucellosis, which is among the most widespread global zoonotic diseases, is endemic in the nation of Georgia and causes substantial human morbidity and economic loss. Here, we report whole-genome sequences of three Brucella melitensis and seven Brucella abortus isolates from cattle, sheep, and humans that represent genetic groups discovered in Georgia.
February 9, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28176187/brucellosis-and-associated-risk-factors-in-dairy-cattle-of-eastern-ethiopia
#4
Yitagele Terefe, Sisay Girma, Negesse Mekonnen, Biruhtesfa Asrade
Knowing the status of Bovine brucellosis and associated risk factors is a crucial step in formulating evidence based control scheme. In this study, a total of 967 dairy cows from 307 dairy farms in eastern Ethiopia were serologically tested for Brucella antibodies. The screening was done first using RBPT and positive samples were subsequently subjected to CFT for confirmation. A pre-tested structured questionnaire was used to collect relevant data from 307 dairy cattle owners or attendants to assess their awareness and routine practice...
February 7, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28167945/tlr7-and-tlr3-sense-brucella-abortus-rna-to-induce-proinflammatory-cytokine-production-but-they-are-dispensable-for-host-control-of-infection
#5
Priscila C Campos, Marco Túlio R Gomes, Erika S Guimarães, Gabriela Guimarães, Sergio C Oliveira
Brucella abortus is a Gram-negative, facultative intracellular bacterium that causes brucellosis, a worldwide zoonotic disease leading to undulant fever in humans and abortion in cattle. The immune response against this bacterium relies on the recognition of microbial pathogen-associated molecular patterns, such as lipoproteins, lipopolysaccharides, and DNA; however, the immunostimulatory potential of B. abortus RNA remains to be elucidated. Here, we show that dendritic cells (DCs) produce significant amounts of IL-12, IL-6, and IP-10/CXCL10, when stimulated with purified B...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28166930/polymeric-antigen-blsomp31-in-aluminium-hydroxide-induces-serum-bactericidal-and-opsonic-antibodies-against-brucella-canis-in-dogs
#6
Maria Clausse, Alejandra G Díaz, Romina P Pardo, Vanesa Zylberman, Fernando A Goldbaum, Silvia M Estein
Polymeric antigen BLSOmp31 is an immunogenic vaccine candidate that confers protection against Brucella canis in mice. In this preliminary study, the immunogenicity and safety of BLSOmp31 adsorbed to aluminum hydroxide gel (BLSOmp31-AH) were evaluated in Beagle dogs. In addition, the potential to elicit serum antibodies with complement-dependent bactericidal activity and/or to enhance phagocytosis by neutrophils were analyzed. Dogs were immunized three times with BLSOmp31-AH by subcutaneous route, followed by an annual booster...
February 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28164569/comparison-of-a-novel-test-odak-brucella-coombs-gel-test-with-commonly-used-serological-tests-in-human-brucellosis
#7
Baris Ata Borsa, Mehmet Ersoy Aldag, Meric Yilmaz, Zeynep Gungordu Dalar, Veli Cengiz Ozalp
BACKGROUND: Since Brucellosis is difficult to diagnose based on clinical symptoms, the diagnosis mostly relies on the results of serological testing. ODAK Brucella Coombs Gel Test is a novel and rapid gel microcolumn agglutination test which is performed in microcolumns containing gel matrix and Coombs antibodies. In this study, we aimed to compare ODAK Brucella Coombs Gel Test with other commonly used serological tests. METHODS: 150 blood samples of patients, preliminarily diagnosed as Brucellosis, were included in this study...
September 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28163966/an-active-principle-of-nigella-sativa-l-thymoquinone-showing-significant-antimicrobial-activity-against-anaerobic-bacteria
#8
Mohammad Akram Randhawa, Awwad Khalaf Alenazy, Majed Gorayan Alrowaili, Jamith Basha
AIM/BACKGROUND: Thymoquinone (TQ) is the major active principle of Nigella sativa seed (black seed) and is known to control many fungi, bacteria, and some viruses. However, the activity of TQ against anaerobic bacteria is not well demonstrated. Anaerobic bacteria can cause severe infections, including diarrhea, aspiration pneumonia, and brain abscess, particularly in immunodeficient individuals. The present study aimed to investigate the in vitro antimicrobial activity of TQ against some anaerobic pathogens in comparison to metronidazole...
January 2017: Journal of Intercultural Ethnopharmacology
https://www.readbyqxmd.com/read/28160160/the-unexpected-discovery-of-brucella-abortus-buck-19-vaccine-in-goats-from-ecuador-underlines-the-importance-of-biosecurity-measures
#9
Jorge Ron-Román, Dirk Berkvens, Daniela Barzallo-Rivadeneira, Alexandra Angulo-Cruz, Pablo González-Andrade, Elizabeth Minda-Aluisa, Washington Benítez-Ortíz, Jef Brandt, Richar Rodríguez-Hidalgo, Claude Saegerman
Very few, mostly old, and only preliminary serological studies of brucellosis in goats exist in Ecuador. In order to assess the current epidemiological situation, we performed a cross-sectional serological study in the goat populations of Carchi (n = 160 animals), Pichincha (n = 224 animals), and Loja provinces (n = 2024 animals). Only two positive serological results (RB negative and SAT-EDTA ≥400 IU/ml) were obtained in lactating goats from the same farm in Quito (Pichincha province). Additionally, milk was sampled from 220 animals in Pichincha province...
February 3, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28157811/one-stage-surgical-management-for-lumbar-brucella-spondylitis-by-posterior-debridement-autogenous-bone-graft-and-instrumentation-a-case-series-of-24-patients
#10
Yangbin Chen, Jun-Song Yang, Tao Li, Peng Liu, Tuan-Jiang Liu, Li-Min He, Li-Xiong Qian, Ding-Jun Hao
STUDY DESIGN: Clinical case series. OBJECTIVE: To explore the efficacy and safety of one-stage debridement, autogenous bone graft and instrumentation for lumbar brucella spondylitis (LBS) via a posterior approach. SUMMARY OF BACKGROUND DATA: Reports on LBS are sporadic, and the therapeutic effect and safety of surgical interventions have not been assessed in clinical studies. METHODS: Between January 2012 and January 2014, 24 consecutive patients with symptomatic LBS who underwent a one-stage operation that combined debridement, autogenous bone graft and instrumentation via a posterior approach were enrolled...
February 2, 2017: Spine
https://www.readbyqxmd.com/read/28152976/origins-and-global-context-of-brucella-abortus-in-italy
#11
Giuliano Garofolo, Elisabetta Di Giannatale, Ilenia Platone, Katiuscia Zilli, Lorena Sacchini, Anna Abass, Massimo Ancora, Cesare Cammà, Guido Di Donato, Fabrizio De Massis, Paolo Calistri, Kevin P Drees, Jeffrey T Foster
BACKGROUND: Brucellosis is a common and chronic disease of cattle and other bovids that often causes reproductive disorders. Natural infection in cattle is caused by Brucella abortus and transmission typically occurs during abortions, calving, or nursing. Brucellosis is also a major zoonotic disease due to contamination of dairy products or contact with the tissues of infected animals. Brucellosis has been eradicated from most of the developed world in the last 40 years but persists in many regions-the disease remains prevalent in portions of Africa, the Middle East, Asia, and Central and South America, as well as in the Mediterranean basin...
February 2, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28151078/isolation-and-characterization-of-a-novel-marine-brucella-from-a-southern-sea-otter-enhydra-lutris-nereis-california-usa
#12
Melissa A Miller, Tristan L Burgess, Erin M Dodd, Jack C Rhyan, Spencer S Jang, Barbara A Byrne, Frances M Gulland, Michael J Murray, Sharon Toy-Choutka, Patricia A Conrad, Cara L Field, Inga F Sidor, Woutrina A Smith
We characterize Brucella infection in a wild southern sea otter ( Enhydra lutris nereis) with osteolytic lesions similar to those reported in other marine mammals and humans. This otter stranded twice along the central California coast over a 1-yr period and was handled extensively at two wildlife rehabilitation facilities, undergoing multiple surgeries and months of postsurgical care. Ultimately the otter was euthanized due to severe, progressive neurologic disease. Necropsy and postmortem radiographs revealed chronic, severe osteoarthritis spanning the proximal interphalangeal joint of the left hind fifth digit...
February 2, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28149294/mlva-genotyping-characteristics-of-human-brucella-melitensis-isolated-from-ulanqab-of-inner-mongolia-china
#13
Zhi-Guo Liu, Dong-Dong Di, Miao Wang, Ri-Hong Liu, Hong-Yan Zhao, Dong-Ri Piao, Guo-Zhong Tian, Wei-Xing Fan, Hai Jiang, Bu-Yun Cui, Xian-Zhu Xia
Brucellosis is a serious public health problem in Ulanqab, which is a region located in the middle of the Inner Mongolia Autonomous Region adjacent to Shanxi and Hebei provinces. The disease is prevalent in both the latter provinces and Ulanqab with the highest prevalence of brucellosis occurring in Inner Mongolia. The MLVA-16 scheme is a genotyping tool for assessing genetic diversity and relationships among isolates. Moreover, this genotyping tool can also be applied to epidemiological trace-back investigations...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28146190/-brucellosis-a-zoonosis-of-importance-in-mexico
#14
Rosa Lilia Guzmán-Hernández, Araceli Contreras-Rodríguez, Eric Daniel Ávila-Calderón, M Rosario Morales-García
INTRODUCTION: Brucellosis is one of the most frequent zoonosis in most parts of the world. This zoonosis remains a great problem to public health in developing countries, although developed countries have successfully controlled it. Mexico still shows a high annual brucellosis incidence in humans; thus, the country is considered around the world as an endemic brucellosis country. AIM: To describe the connection/association between this zoonosis and the current epidemiological situation in the Mexican population...
December 2016: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/28139956/bacterial-microbiota-in-harbor-seals-phoca-vitulina-from-the-north-sea-of-schleswig-holstein-germany-around-the-time-of-morbillivirus-and-influenza-epidemics
#15
Ursula Siebert, Marion Rademaker, Sophie A Ulrich, Peter Wohlsein, Katrin Ronnenberg, Ellen Prenger-Berninghoff
We present microbiologic findings in harbor seal (phoca; Phoca vitulina ) carcasses collected from the North Sea of Schleswig-Holstein, Germany, 1996-2014, and interpret results in relation to potential variations caused by phocine distemper virus and influenza A virus mass mortalities. We conducted microbiologic investigations on 2,124 tissue samples from lung, liver, kidney, spleen, intestine, and mesenteric lymph nodes from 549 dead harbor seals of the German North Sea. A large variety of bacteria, including potentially pathogenic species such as Bordetella bronchiseptica , Brucella spp...
January 31, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28131952/brucella-abortus-2308%C3%AE-nodv%C3%AE-nodw-double-mutant-is-highly-attenuated-and-confers-protection-against-wild-type-challenge-in-balb-c-mice
#16
Zhiqiang Li, Shuli Wang, Jinliang Zhang, Guangli Yang, Baodong Yuan, Jie Huang, Jincheng Han, Li Xi, Yanren Xiao, Chuangfu Chen, Hui Zhang
Brucellosis is an important zoonotic disease of worldwide distribution, which causes animal and human disease. However, the current Brucella abortus (B. abortus) vaccines (S19 and RB51) have several drawbacks, including residual virulence for animals and humans. Moreover, S19 cannot allow serological differentiation between infected and vaccinated animals. We constructed double deletion (ΔNodVΔNodW) mutant from virulent B. abortus 2308 (S2308) by deleting the genes encoding two-component regulatory system (TCS) in chromosome II in S2308...
January 25, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28131377/identification-of-otpr-regulated-srnas-in-brucella-melitensis-expressed-under-acidic-stress-and-their-roles-in-pathogenesis-and-metabolism
#17
Udayakumar S Vishnu, Jagadesan Sankarasubramanian, Paramasamy Gunasekaran, Jeyaprakash Rajendhran
Small RNAs (sRNAs) are the small regulatory molecules that regulate various biological processes in bacteria. Though the functions of sRNAs are well documented, very little information is available on the sRNAs of Brucella spp. The otpR is the response regulator of a two-component regulatory system, which plays a significant role in Brucella virulence. In this study, we identified the sRNAs expressed in B. melitensis 16M and its otpR mutant under acidic stress from the RNAseq dataset. We identified 94 trans-encoded and 948 cis-encoded sRNAs in B...
February 2017: Comparative Immunology, Microbiology and Infectious Diseases
https://www.readbyqxmd.com/read/28131373/molecular-epidemiological-investigation-of-brucella-melitensis-circulating-in-mongolia-by-mlva16
#18
Sung-Il Kang, Moon Her, Janchivdorj Erdenebaataar, Batbaatar Vanaabaatar, Hyorim Cho, So-Ra Sung, Jin Ju Lee, Suk Chan Jung, Yong Ho Park, Ji-Yeon Kim
Mongolia has a high incidence of brucellosis in human and animals due to livestock husbandry. To investigate the genetic characteristics of Mongolian B. melitensis, an MLVA (multi-locus variable-number tandem-repeat analysis)-16 assay was performed with 94 B. melitensis isolates. They were identified as B. melitensis biovar (bv.) 1 (67), 3 (10) and Rev. 1 vaccine strains (17) using a classical biotyping and multiplex PCR. In genotyping, three human isolates were grouped at 2 genotypes with sheep isolates, and it implies that B...
February 2017: Comparative Immunology, Microbiology and Infectious Diseases
https://www.readbyqxmd.com/read/28129787/seroprevalence-and-risk-factors-associated-with-bovine-brucellosis-in-the-potohar-plateau-pakistan
#19
Shahzad Ali, Shamim Akhter, Heinrich Neubauer, Falk Melzer, Iahtasham Khan, Emmanuel Nji Abatih, Hosny El-Adawy, Muhammad Irfan, Ali Muhammad, Muhammad Waqas Akbar, Sajid Umar, Qurban Ali, Muhammad Naeem Iqbal, Abid Mahmood, Haroon Ahmed
BACKGROUND: The seroprevalence and risk factors of bovine brucellosis were studied at animal and herd level using a combination of culture, serological and molecular methods. The study was conducted in 253 randomly selected cattle herds of the Potohar plateau, Pakistan from which a total of 2709 serum (1462 cattle and 1247 buffaloes) and 2330 milk (1168 cattle and 1162 buffaloes) samples were collected. Data on risk factors associated with seroprevalence of brucellosis were collected through interviews using questionnaires...
January 28, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28129398/molecular-survey-of-bacterial-zoonotic-agents-in-bats-from-the-country-of-georgia-caucasus
#20
Ying Bai, Lela Urushadze, Lynn Osikowicz, Clifton McKee, Ivan Kuzmin, Andrei Kandaurov, Giorgi Babuadze, Ioseb Natradze, Paata Imnadze, Michael Kosoy
Bats are important reservoirs for many zoonotic pathogens. However, no surveys of bacterial pathogens in bats have been performed in the Caucasus region. To understand the occurrence and distribution of bacterial infections in these mammals, 218 bats belonging to eight species collected from four regions of Georgia were examined for Bartonella, Brucella, Leptospira, and Yersinia using molecular approaches. Bartonella DNA was detected in 77 (35%) bats from all eight species and was distributed in all four regions...
2017: PloS One
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