Molecular Detection of Biological Agents in the Field: Then and Now.

abstract：:Campylobacter jejuni is a leading cause of bacterial diarrhea worldwide and is associated with high rates of mortality and growth stunting in children inhabiting low- to middle-resource countries. To better understand the impact of breastfeeding on Campylobacter infection in infants in sub-Saharan Africa and South Asi...

journal_title：mSphere

authors： Bian X,Garber JM,Cooper KK,Huynh S,Jones J,Mills MK,Rafala D,Nasrin D,Kotloff KL,Parker CT,Tennant SM,Miller WG,Szymanski CM

更新日期：2020-01-15 00:00:00

abstract：:The azithromycin resistance conferred by phosphotransferase is encoded in the gene mph(A). This gene has been discovered in and reported for many bacterial species. We examined the prevalence of azithromycin resistance in Vibrio fluvialis (AR-VF) isolated during 2014 to 2015 from the hospitalized acute diarrheal patie...

journal_title：mSphere

authors： Chowdhury G,Ramamurthy T,Ghosh A,Dutta S,Takahashi E,Mukhopadhyay AK

更新日期：2019-06-12 00:00:00

abstract：:Bifidobacterium species are important commensals capable of dominating the infant gut microbiome, in part by producing acids that suppress growth of other taxa. Bifidobacterium species are less prone to possessing antimicrobial resistance (AMR) genes (ARGs) than other taxa that may colonize infants. Given that AMR is ...

journal_title：mSphere

authors： Taft DH,Liu J,Maldonado-Gomez MX,Akre S,Huda MN,Ahmad SM,Stephensen CB,Mills DA

更新日期：2018-09-26 00:00:00

abstract：:Little is known regarding how the chronic Toxoplasma gondii cyst develops. Here, we investigated intravacuolar-network-associated dense granule (GRA) proteins GRA1, GRA2, GRA4, GRA6, GRA9, and GRA12 during cyst development in vitro after differentiation of the tachyzoite-stage parasitophorous vacuole. By day 1 postdif...

journal_title：mSphere

authors： Guevara RB,Fox BA,Falla A,Bzik DJ

更新日期：2019-10-16 00:00:00

abstract：:[This corrects the article DOI: 10.1128/mSphere.00393-18.]. ...

journal_title：mSphere

authors： Foe IT,Onguka O,Amberg-Johnson K,Garner RM,Amara N,Beatty W,Yeh E,Bogyo M

更新日期：2018-10-10 00:00:00

abstract：:Influenza D virus (IDV) is unique among four types of influenza viruses in that it utilizes cattle as a primary reservoir. The thermal and acid stability of IDV were examined and directly compared with those of influenza A virus (IAV), influenza B virus (IBV), and influenza C virus (ICV). The results of our experiment...

journal_title：mSphere

authors： Yu J,Hika B,Liu R,Sheng Z,Hause BM,Li F,Wang D

更新日期：2017-08-09 00:00:00

abstract：:Cryptococcus neoformans and related species are encapsulated basidiomycetous fungi that cause meningoencephalitis in individuals with immune deficiency. This pathogen has a tractable genetic system; however, gene disruption via electroporation remains difficult, while biolistic transformation is often limited by lack ...

journal_title：mSphere

authors： Wang P

更新日期：2018-06-13 00:00:00

abstract：:The oral periodontopathic bacterium Fusobacterium nucleatum has been repeatedly associated with colorectal tumors. Molecular analysis has identified specific virulence factors that promote tumorigenesis in the colon. However, other oral community members, such as members of the Porphyromonas spp., are also found with ...

journal_title：mSphere

authors： Flynn KJ,Baxter NT,Schloss PD

更新日期：2016-05-11 00:00:00

abstract：:Salmonella genomic island 1 (SGI1) is an integrative genetic island first described in Salmonella enterica serovars Typhimurium DT104 and Agona in 2000. Variants of it have since been described in multiple serovars of S. enterica, as well as in Proteus mirabilis, Acinetobacter baumannii, Morganella morganii, and sever...

journal_title：mSphere

authors： Cummins ML,Roy Chowdhury P,Marenda MS,Browning GF,Djordjevic SP

更新日期：2019-05-22 00:00:00

abstract：:Information on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spread in Africa is limited by insufficient diagnostic capacity. Here, we assessed the coronavirus disease (COVID-19)-related diagnostic workload during the onset of the pandemic in the central laboratory of Benin, Western Africa; characterize...

journal_title：mSphere

authors： Sander AL,Yadouleton A,Moreira-Soto A,Tchibozo C,Hounkanrin G,Badou Y,Fischer C,Krause N,Akogbeto P,F de Oliveira Filho E,Dossou A,Brünink S,Drosten C,Aïssi MAJ,Harouna Djingarey M,Hounkpatin B,Nagel M,Drexler JF

更新日期：2021-01-13 00:00:00

abstract：:Shigella spp. are a major cause of diarrhea and dysentery in children under 5 years old in the developing world. The development of an effective vaccine remains a public health priority, necessitating improved understanding of immune responses to Shigella and identification of protective antigens. We report the develo...

journal_title：mSphere

authors： Ndungo E,Randall A,Hazen TH,Kania DA,Trappl-Kimmons K,Liang X,Barry EM,Kotloff KL,Chakraborty S,Mani S,Rasko DA,Pasetti MF

更新日期：2018-08-01 00:00:00

abstract：:Enveloped viruses require viral fusion proteins to promote fusion of the viral envelope with a target cell membrane. To drive fusion, these proteins undergo large conformational changes that must occur at the right place and at the right time. Understanding the elements which control the stability of the prefusion sta...

journal_title：mSphere

authors： Webb SR,Smith SE,Fried MG,Dutch RE

更新日期：2018-04-18 00:00:00

abstract：:Clostridium difficile, also known as Clostridioides difficile, is a Gram-positive, spore-forming bacterium that is a leading cause of antibiotic-associated diarrhea. C. difficile infections begin when its metabolically dormant spores germinate to form toxin-producing vegetative cells. Successful spore germination depe...

journal_title：mSphere

authors： Diaz OR,Sayer CV,Popham DL,Shen A

更新日期：2018-06-27 00:00:00

abstract：:Using live microbes as therapeutic candidates is a strategy that has gained traction across multiple therapeutic areas. In the skin, commensal microorganisms play a crucial role in maintaining skin barrier function, homeostasis, and cutaneous immunity. Alterations of the homeostatic skin microbiome are associated with...

journal_title：mSphere

authors： Dodds D,Bose JL,Deng MD,Dubé GR,Grossman TH,Kaiser A,Kulkarni K,Leger R,Mootien-Boyd S,Munivar A,Oh J,Pestrak M,Rajpura K,Tikhonov AP,Turecek T,Whitfill T

更新日期：2020-06-10 00:00:00

abstract：:Methane-oxidizing microorganisms perform an important role in reducing emissions of the greenhouse gas methane to the atmosphere. To date, known bacterial methanotrophs belong to the Proteobacteria, Verrucomicrobia, and NC10 phyla. Within the Proteobacteria phylum, they can be divided into type Ia, type Ib, and type I...

journal_title：mSphere

authors： Ghashghavi M,Belova SE,Bodelier PLE,Dedysh SN,Kox MAR,Speth DR,Frenzel P,Jetten MSM,Lücker S,Lüke C

更新日期：2019-06-05 00:00:00

abstract：:Grf10, a homeodomain-containing transcription factor, regulates adenylate and one-carbon metabolism and morphogenesis in the human fungal pathogen Candida albicans Here, we identified functional domains and key residues involved in transcription factor activity using one-hybrid and mutational analyses. We localized ac...

journal_title：mSphere

authors： Wangsanut T,Tobin JM,Rolfes RJ

更新日期：2018-10-24 00:00:00

abstract：:Replication forks must respond to changes in nutrient conditions, especially in bacterial cells. By investigating the single-molecule dynamics of replicative helicase DnaC, DNA primase DnaG, and lagging-strand polymerase DnaE in the model bacterium Bacillus subtilis, we show that proteins react differently to stress c...

journal_title：mSphere

authors： Hernández-Tamayo R,Schmitz H,Graumann PL

更新日期：2021-01-27 00:00:00

abstract：:To design immune interventions that can synergize with antiretroviral therapy (ART) to reduce the rate of HIV mother-to-child transmission (MTCT), it is essential to characterize maternal immune responses in the setting of ART during pregnancy and breastfeeding and define their effect on MTCT. Prior studies reported a...

journal_title：mSphere

authors： Hompe ED,Jacobson DL,Eudailey JA,Butler K,Edwards W,Pollara J,Brummel SS,Fouda GG,Chinula L,Kamanga M,Kinikar A,Moodley D,Owor M,Fowler MG,Permar SR

更新日期：2019-10-23 00:00:00

abstract：:Outbreaks of infection occur more often than they are reported in most developing countries, largely due to poor diagnostic services. A Klebsiella species bacteremia outbreak in a newborn unit with high mortality was recently encountered at a location being surveilled for childhood bacteremia. These surveillance effor...

journal_title：mSphere

authors： Brinkac LM,White R,D'Souza R,Nguyen K,Obaro SK,Fouts DE

更新日期：2019-03-13 00:00:00

abstract：:Disruption of the histone-like nucleoid structuring protein (H-NS) was shown to affect the ability of Gram-negative bacteria to regulate genes associated with virulence, persistence, stress response, quorum sensing, biosynthesis pathways, and cell adhesion. Here, we used the expression of metallo-β-lactamases (MBLs), ...

journal_title：mSphere

authors： Huang F,Fitchett N,Razo-Gutierrez C,Le C,Martinez J,Ra G,Lopez C,Gonzalez LJ,Sieira R,Vila AJ,Bonomo RA,Ramirez MS

更新日期：2020-08-26 00:00:00

abstract：:Most observation of human respiratory virus carriage is derived from medical surveillance; however, the infections documented by this surveillance represent only a symptomatic fraction of the total infected population. As the role of asymptomatic infection in respiratory virus transmission is still largely unknown and...

journal_title：mSphere

authors： Birger R,Morita H,Comito D,Filip I,Galanti M,Lane B,Ligon C,Rosenbloom D,Shittu A,Ud-Dean M,Desalle R,Planet P,Shaman J

更新日期：2018-07-11 00:00:00

abstract：:The gut microbiota has a key role in determining susceptibility to Clostridioides difficile infections (CDIs). However, much of the mechanistic work examining CDIs in mouse models uses animals obtained from a single source. We treated mice from 6 sources (2 University of Michigan colonies and 4 commercial vendors) wit...

journal_title：mSphere

authors： Tomkovich S,Stough JMA,Bishop L,Schloss PD

更新日期：2020-10-21 00:00:00

abstract：:Although the role of high-risk human papillomaviruses (hrHPVs) as etiological agents in cancer development has been intensively studied during the last decades, there is still the necessity of understanding the impact of the HPV E6 and E7 oncogenes on host cells, ultimately leading to malignant transformation. Here, w...

journal_title：mSphere

authors： Yang R,Klimentová J,Göckel-Krzikalla E,Ly R,Gmelin N,Hotz-Wagenblatt A,Řehulková H,Stulík J,Rösl F,Niebler M

更新日期：2019-03-27 00:00:00

abstract：:Type I interferons (IFN) initiate an antiviral state through a signal transduction cascade that leads to the induction of hundreds of IFN-stimulated genes (ISGs) to restrict viral infection. Recently, RNA modifications on both host and viral RNAs have been described as regulators of infection. However, the impact of h...

journal_title：mSphere

authors： Williams GD,Gokhale NS,Snider DL,Horner SM

更新日期：2020-05-13 00:00:00

abstract：:We are exposed daily to many glycans from bacteria and food plants. Bacterial glycans are generally antigenic and elicit antibody responses. It is unclear if food glycans' sharing of antigens with bacterial glycans influences our immune responses to bacteria. We studied 14 different plant foods for cross-reactivity wi...

journal_title：mSphere

authors： Nahm MH,Yu J,Vlach J,Bar-Peled M

更新日期：2020-04-08 00:00:00

abstract：:Antibiotic resistance is a global crisis that threatens our ability to treat bacterial infections, such as tuberculosis, caused by Mycobacterium tuberculosis Of the 10 million cases of tuberculosis in 2017, approximately 19% of new cases and 43% of previously treated cases were caused by strains of M. tuberculosis res...

journal_title：mSphere

authors： Harrison GA,Mayer Bridwell AE,Singh M,Jayaraman K,Weiss LA,Kinsella RL,Aneke JS,Flentie K,Schene ME,Gaggioli M,Solomon SD,Wildman SA,Meyers MJ,Stallings CL

更新日期：2019-09-11 00:00:00

abstract：:Periodontal disease induced by periodontopathic bacteria like Porphyromonas gingivalis is demonstrated to increase the risk of metabolic, inflammatory, and autoimmune disorders. Although precise mechanisms for this connection have not been elucidated, we have proposed mechanisms by which orally administered periodonto...

journal_title：mSphere

authors： Kato T,Yamazaki K,Nakajima M,Date Y,Kikuchi J,Hase K,Ohno H,Yamazaki K

更新日期：2018-10-17 00:00:00

abstract：:Hypervirulent Klebsiella pneumoniae (hvKp) is an emerging pathogen of increasing concern due to its ability to cause serious organ and life-threatening infections in healthy individuals and its increasing acquisition of antimicrobial resistance determinants. Identification of hvKp is critical for patient care and epid...

journal_title：mSphere

authors： Russo TA,MacDonald U

更新日期：2020-01-08 00:00:00

abstract：:Members of the genus Fibrobacter are cellulose-degrading bacteria and common constituents of the gastrointestinal microbiota of herbivores. Although considerable phylogenetic diversity is observed among members of this group, few functional differences explaining the distinct ecological distributions of specific phylo...

journal_title：mSphere

authors： Neumann AP,Suen G

更新日期：2018-12-12 00:00:00

abstract：:Mary Lopez-Perez works on immunology and pathogenesis of malaria. In this mSphere of Influence article, she reflects on how the paper "Functional antibodies against VAR2CSA in nonpregnant populations from Colombia exposed to Plasmodium falciparum and Plasmodium vivax" by S. Gnidehou, J. Doritchamou, E. M. Arango, A. C...

journal_title：mSphere

authors： Lopez-Perez M

更新日期：2020-04-08 00:00:00