IRIS
VARALDO, Pietro
 Distribuzione geografica
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Continente #
NA - Nord America 7.737
EU - Europa 4.457
AS - Asia 1.626
AF - Africa 164
Continente sconosciuto - Info sul continente non disponibili 10
SA - Sud America 9
OC - Oceania 5
Totale 14.008
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Nazione #
US - Stati Uniti d'America 7.716
UA - Ucraina 1.071
SE - Svezia 752
IT - Italia 579
SG - Singapore 557
TR - Turchia 539
IE - Irlanda 524
DE - Germania 486
DK - Danimarca 418
CN - Cina 277
FI - Finlandia 231
KR - Corea 220
GB - Regno Unito 174
FR - Francia 154
CI - Costa d'Avorio 140
BE - Belgio 33
CA - Canada 21
MA - Marocco 17
IN - India 12
HK - Hong Kong 10
EU - Europa 9
ES - Italia 4
RS - Serbia 4
RU - Federazione Russa 4
AT - Austria 3
HR - Croazia 3
JP - Giappone 3
LT - Lituania 3
NZ - Nuova Zelanda 3
PL - Polonia 3
VN - Vietnam 3
AE - Emirati Arabi Uniti 2
AL - Albania 2
AR - Argentina 2
AU - Australia 2
BG - Bulgaria 2
BR - Brasile 2
CM - Camerun 2
KE - Kenya 2
MK - Macedonia 2
NG - Nigeria 2
NL - Olanda 2
PY - Paraguay 2
A1 - Anonimo 1
BO - Bolivia 1
CH - Svizzera 1
CL - Cile 1
LK - Sri Lanka 1
NO - Norvegia 1
PK - Pakistan 1
PT - Portogallo 1
TH - Thailandia 1
VE - Venezuela 1
ZA - Sudafrica 1
Totale 14.008
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Città #
Jacksonville 1.075
Chandler 1.047
Fairfield 625
Boardman 547
Dublin 523
Wilmington 399
Ashburn 394
Woodbridge 318
Des Moines 282
Singapore 261
Ann Arbor 259
Houston 246
Seattle 241
San Mateo 222
Lawrence 215
Princeton 215
New York 182
Cambridge 177
Abidjan 140
San Diego 107
Marche 104
Centro 58
Milan 55
Turin 44
Beijing 43
Redmond 42
Brussels 33
London 31
Venice 28
Los Angeles 27
Washington 25
Izmir 24
Shanghai 23
Helsinki 20
Auburn Hills 19
Norwalk 18
Jiaxing 15
Guangzhou 14
Wuhan 14
Civitanova Marche 11
Dallas 10
Montréal 9
Bologna 8
Rome 8
Hong Kong 7
Kilburn 7
Ottawa 7
Shenzhen 7
Ancona 6
Bari 6
Osimo 6
Santa Clara 6
Seoul 6
West Jordan 6
Wuxi 6
Acton 5
Munich 5
Belgrade 4
Falls Church 4
Frankfurt am Main 4
Hanover 4
Quanzhou 4
Toronto 4
Wandsworth 4
Appignano 3
Cingoli 3
Delhi 3
Florence 3
Hounslow 3
Kraków 3
Prescot 3
Qingdao 3
Redwood City 3
Tappahannock 3
Vienna 3
Yiwu 3
Zagreb 3
Alameda 2
Arco 2
Asunción 2
Busalla 2
Cagliari 2
Cava De' Tirreni 2
Edinburgh 2
Gallipoli 2
Genova 2
Hangzhou 2
Jinhua 2
Köseköy 2
Latina 2
Macerata 2
Martellago 2
Messina 2
Morrovalle 2
Nairobi 2
New Bedfont 2
New Orleans 2
North Berwick 2
Nuremberg 2
Palermo 2
Totale 8.351
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Nome #
13. Stafilococchi 172
14. Streptococchi. 168
Antimicrobial Resistance: A Challenge for the Future 162
ELEMENTI INTEGRATIVI E CONIUGATIVI NEGLI STREPTOCOCCHI 132
Characterization of novel conjugative multiresistance plasmids carrying cfr from linezolid-resistant Staphylococcus epidermidis clinical isolates from Italy 121
Antimicrobial properties of N-carboxybutyl chitosan. 118
Characterization of poxtA, a novel phenicol-oxazolidinone-tetracycline resistance gene from an MRSA of clinical origin 113
Plasmid-mediated sulfonamide resistance in Neisseria meningitidis. 111
Characterization of a Multiresistance Plasmid Carrying the optrA and cfr Resistance Genes From an Enterococcus faecium Clinical Isolate 111
Prophage association of mef(A) elements encoding efflux-mediated erythromycin resistance in Streptococcus pyogenes. 110
A clone of linezolid-resistant Staphylococcus epidermidis bearing the G2576T mutation is endemic in an Italian hospital 109
Use of DNA fingerprinting in an epidemiologic study of outbreak-specific and non-specific strains of group C Neisseria meningitidis. 106
Genetic elements carrying erm(B) in Streptococcus pyogenes and association with tet(M) tetracycline resistance gene. 103
Analysis of the β-lactamase plasmid of borderline methicillin- susceptible Staphylococcus aureus: Focus on bla complex genes and cadmium resistance determinants cadD and cadX 99
Absolute quantitation of viremia in human immunodeficiency virus infection by competitive reverse transcription and polymerase chain reaction. 98
Interactions with lectins and agglutination profiles of clinical, food, and environmental isolates of Listeria. 96
Characterization of Tn5801.Sag, a variant of Staphylococcus aureus Tn916 family transposon Tn5801 that is widespread in clinical isolates of Streptococcus agalactiae 96
IN VITRO ANTIBACTERIAL ACTIVITY OF TROVAFLOXACIN AND FIVE OTHER FLUOROQUINOLONES 95
SmaI typeability and tetracycline susceptibility/resistance in Streptococcus pyogenes isolates with efflux-mediated erythromycin resistance. 95
Spread of colistin resistance gene mcr-1 in Italy: characterization of the mcr-1.2 allelic variant in a colistin-resistant blood isolate of Escherichia coli 93
In vitro antibacterial activity of LY333328, a new semisynthetic glycopeptide 92
Molecular Characterization of Italian Isolates of Fluoroquinolone-Resistant Streptococcus agalactiae and Relationships with Chloramphenicol Resistance 92
Cross-infection with Listeria monocytogenes confirmed by DNA fingerprinting. 91
Staphylococcal Diseases. 90
Genetic basis of tetracycline resistance in food-borne isolates of Listeria innocua. 88
Prulifloxacin: a viewpoint. 87
Development of in-vitro resistance to glycopeptide antibiotics: assessment in staphylococci of different species 87
Dynamics of molecular parameters of human immunodeficiency virus type 1 activity in vivo. 86
Recovery from a single blood culture of two Enterococcus gallinarum isolates carrying both vanC-1 and vanA cluster genes and differing in glycopeptide susceptibility 86
Heterogeneity of Tn5253-Like Composite Elements in Clinical Streptococcus pneumoniae Isolates. 86
Molecular profile of human immunodeficiency virus type 1 infection in symptomless patients and in patients with AIDS. 86
Distribution and molecular analysis of mef(A)-containing elements in tetracycline-susceptible and -resistant Streptococcus pyogenes clinical isolates with efflux-mediated erythromycin resistance. 86
In vitro activities of three semisynthetic amide derivatives of teicoplanin, MDL 62208, MDL 62211, and MDL 62873. 85
Streptococcus pneumoniae Transposon Tn1545/Tn6003 Changes to Tn6002 Due to Spontaneous Excision in Circular Form of the erm(B)-and aphA3-Containing Macrolide-Aminoglycoside-Streptothricin (MAS) Element 85
In vitro activity of teichomycin and vancomycin alone and in combination with rifampin. 84
CLONING AND EXPRESSION OF THE PENICILLINASE FROM A BORDERLINE METHICILLIN-SUSCEPTIBLE STAPHYLOCOCCUS AUREUS STRAIN IN ESCHERICHIA COLI. 84
Vancomycin-resistant enterococci. 83
A new mosaic integrative and conjugative element from Streptococcus agalactiae carrying resistance genes for chloramphenicol (catQ) and macrolides [mef(I) and erm(TR)] 83
ICESp1116, the genetic element responsible for erm(B)-mediated, inducible resistance to erythromycin in Streptococcus pyogenes 83
Clonal spread of macrolide- and tetracycline-resistant [erm(A) tet(O)] emm77 Streptococcus pyogenes isolates in Italy and Norway. 82
An improved phage display vector for antibody repertoire cloning by construction of combinatorial libraries 82
Association between erythromycin resistance and ability to enter human respiratory cells in group A streptococci. 82
ICESp1116, the genetic element responsible for erm(B)-mediated, inducible erythromycin resistance in Streptococcus pyogenes, belongs to the TnGBS family of integrative and conjugative elements 81
Lectin reactivity and virulence among strains of Listeria monocytogenes determined in vitro using the enterocyte-like cell line Caco-2. 81
Antibiotic resistance in foodborne Listeria. 81
A new subtraction technique for molecular cloning of rare antiviral antibody specificities from phage display libraries. 80
Bilateral Acanthamoeba keratitis 80
La resistenza agli antibiotici negli stafilococchi. 79
Persistence of erythromycin-resistant group a streptococci in cultured respiratory cells. 79
In vitro conjugative transfer of VanA vancomycin resistance between Enterococci and Listeriae of different species 78
Genotypic characterization of a nosocomial outbreak of vanA Enterococcus faecalis. 78
Further characterization of borderline methicillin-resistant Staphylococcus aureus and analysis of penicillin-binding proteins 78
In vitro activity of monoclonal and recombinant yeast killer toxin-like antibodies against antibiotic-resistant Gram-positive cocci. 77
Detection in Italy of two clinical Enterococcus faecium isolates carrying both the oxazolidinone and phenicol resistance gene optrA and a silent multiresistance gene cfr. 77
Differentiation of resistance phenotypes among erythromycin-resistant pneumococci 76
Adherence of gram-negative uropathogens to human uroepithelial cells 76
Composite SCCmec Element in Single-locus Variant (ST217) of Epidemic MRSA-15 Clone 76
Inhibitory activity by barley coffee components towards Streptococcus mutans biofilm. 75
Detection of human immunodeficiency virus type 1 genomic RNA in plasma samples by reverse-transcription polymerase chain reaction. 75
Expressed and unexpressed tet(M) genes and the erm(B)-carrying Tn1116 transposon in Streptococcus pyogenes and Streptococcus pneumoniae. 75
Pitfalls encountered while investigating genetic elements by PCR 75
Characterization of a Streptococcus suis tet(O/W/32/O)-carrying element transferable to major streptococcal pathogens. 75
Antistaphylococcal and antistreptococcal killing kinetics of ciprofloxacin, ofloxacin, sparfloxacin and trovafloxacin 75
Molecular characterization of clinical Streptococcus pneumoniae isolates with reduced susceptibility to fluoroquinolones emerging in Italy 74
Diverging effects of human recombinant anti-hepatitis C virus (HCV) antibody fragments derived from a single patient on the infectivity of a vesicular stomatitis virus/HCV pseudotype. 73
Glycopeptide resistance in coagulase-negative staphylococci. 73
Tn5253 family integrative and conjugative elements carrying mef(I) and catQ determinants in Streptococcus pneumoniae and Streptococcus pyogenes 73
Transferable erythromycin resistance in Listeria spp. isolated from food. 72
Different genetic elements carrying the tet(W) gene in two human clinical isolates of Streptococcus suis. 72
Striking “Seesaw Effect” between Daptomycin Nonsusceptibilityand beta-Lactam Susceptibility in Staphylococcus haemolyticus 72
Macrolide resistance gene erm(TR) and erm(TR)-carrying genetic elements in Streptococcus agalactiae: characterization of ICESagTR7, a new composite element containing IMESp2907 72
Conjugative transfer of the erm(A) gene from erythromycin-resistant Streptococcus pyogenes to macrolide-susceptible S. pyogenes, Enterococcus faecalis and Listeria innocua 71
An electron microscopic study of clinical and laboratory-derived strains of teicoplanin-resistant Staphylococcus haemolyticus 71
Genetic determinants and elements associated with antibiotic resistance in viridans group streptococci 71
Quantitative PCR and RT-PCR in virology. 70
Dynamic features of human immunodeficiency virus type 1 (HIV-1) viremia: kinetics of cell-free HIV-1 RNA after therapeutic plasma exchange 70
Transduction of the Streptococcus pyogenes bacteriophage Φm46.1, carrying resistance genes mef(A)and tet(O), to other Streptococcus species 70
Glycopeptide susceptibility profiles of Staphylococcus haemolyticus bloodstream isolates. 69
Streptococcus suis meningitis without history of animal contact, Italy. 69
Unconventional circularizable bacterial genetic structures carrying antibiotic resistance determinants 69
A novel efflux system in inducibly erythromycin-resistant strains of Streptococcus pyogenes 69
Effects of ß-lactamase inhibitors on Staphylococcus aureus susceptibility to penicillin G and penicillinase-resistant penicillins 68
Immunity assessment in the early stages of amyotrophic lateral sclerosis: a study of virus antibodies and lymphocyte subsets. 68
Stability of the cargo regions of the cfr-carrying, multiresistance plasmid pSP01 from Staphylococcus epidermidis 68
Staphylococcus delphini sp. nov., a coagulase-positive species isolated from dolphins 68
Detection of hepatitis B virus DNA in serum using synthetic non-radioactive oligonucleotides. 68
Antimicrobial resistance and susceptibility testing: an evergreen topic. 67
Cross-reactive pseudovirus-neutralizing anti-envelope antibodies coexist with antibodies devoid of such activity in persistent hepatitis C virus infection. 67
Effects of fluoroquinolones on bacterial adhesion and on preformed biofilm of strains isolated from urinary double J stents. 67
Composite structure of Streptococcus pneumoniae containing the erythromycin efflux resistance gene mef(I) and the chloramphenicol resistance gene catQ 67
Nonneutralizing human antibody fragments against hepatitis C virus E2 glycoprotein modulate neutralization of binding activity of human recombinant Fabs. 67
Routine separation of staphylococci from micrococci based on bacteriolytic activity production 67
Recurrent skin infection associated with nasal carriage of Panton-Valentine leukocidin-positive methicillin-susceptible Staphylococcus aureus closely related to the EMRSA-15 clone 67
Interpretive criteria for disk diffusion susceptibility testing of ulifloxacin, the active metabolite of prulifloxacin 66
Taxonomic study of coagulase-positive staphylococci: bacteriolytic activity pattern analysis 66
Interactions between glycopeptides and ß-lactams against isogenic pairs of teicoplanin-susceptible/resistant strains of Staphylococcus haemolyticus. 65
Caratterizzazione di ΦSSUD.1, un nuovo elemento che veicola geni di resistenza ad antibiotici [tet(W), erm(B), aadE, sat4, aphA] ed a sali di metalli pesanti [cadc/cada] in Streptococcus suis 65
A multicenter study on central venous catheter-associated infections in Italy 65
Activity of roxithromycin against respiratory pathogens 65
Different staphylococcal species contain various numbers of penicillin-binding proteins ranging from four (Staphylococcus aureus) to only one (Staphylococcus hyicus). 64
Totale 8.370
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Categoria #
all - tutte 71.410
article - articoli 0
book - libri 0
conference - conferenze 0
curatela - curatele 0
other - altro 0
patent - brevetti 0
selected - selezionate 0
volume - volumi 0
Totale 71.410
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Totale Lug Ago Sett Ott Nov Dic Gen Feb Mar Apr Mag Giu
2019/2020881 0 0 0 0 0 8 232 5 230 29 58 319
2020/20213.043 113 355 422 66 340 138 294 172 366 269 347 161
2021/20221.616 78 385 12 105 15 122 68 93 105 156 147 330
2022/20233.143 268 257 227 303 288 583 4 189 759 22 151 92
2023/20241.524 295 41 99 259 262 249 21 23 11 36 27 201
2024/20251.030 360 276 216 60 83 35 0 0 0 0 0 0
Totale 14.241