IRIS
VARALDO, Pietro
 Distribuzione geografica
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Continente #
NA - Nord America 7.836
EU - Europa 5.008
AS - Asia 2.057
SA - Sud America 252
AF - Africa 174
Continente sconosciuto - Info sul continente non disponibili 10
OC - Oceania 5
Totale 15.342
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Nazione #
US - Stati Uniti d'America 7.790
UA - Ucraina 1.071
SE - Svezia 752
SG - Singapore 618
IT - Italia 589
TR - Turchia 545
IE - Irlanda 524
RU - Federazione Russa 514
DE - Germania 497
DK - Danimarca 418
HK - Hong Kong 348
CN - Cina 280
FI - Finlandia 234
BR - Brasile 232
KR - Corea 220
GB - Regno Unito 176
FR - Francia 154
CI - Costa d'Avorio 142
BE - Belgio 36
CA - Canada 23
MX - Messico 20
MA - Marocco 18
IN - India 13
EU - Europa 9
AT - Austria 6
JP - Giappone 6
BD - Bangladesh 5
IQ - Iraq 5
KE - Kenya 5
NL - Olanda 5
PK - Pakistan 5
AE - Emirati Arabi Uniti 4
AR - Argentina 4
EC - Ecuador 4
ES - Italia 4
PY - Paraguay 4
RS - Serbia 4
BO - Bolivia 3
HN - Honduras 3
HR - Croazia 3
LT - Lituania 3
NZ - Nuova Zelanda 3
PL - Polonia 3
RO - Romania 3
VE - Venezuela 3
VN - Vietnam 3
ZA - Sudafrica 3
AL - Albania 2
AU - Australia 2
BG - Bulgaria 2
CM - Camerun 2
MK - Macedonia 2
NG - Nigeria 2
TN - Tunisia 2
A1 - Anonimo 1
AZ - Azerbaigian 1
BY - Bielorussia 1
CH - Svizzera 1
CL - Cile 1
CO - Colombia 1
CZ - Repubblica Ceca 1
IL - Israele 1
LK - Sri Lanka 1
NO - Norvegia 1
PH - Filippine 1
PT - Portogallo 1
SK - Slovacchia (Repubblica Slovacca) 1
TH - Thailandia 1
Totale 15.342
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Città #
Jacksonville 1.075
Chandler 1.047
Fairfield 625
Boardman 547
Dublin 523
Wilmington 399
Ashburn 394
Hong Kong 342
Woodbridge 318
Singapore 308
Des Moines 302
Ann Arbor 259
Houston 246
Seattle 245
San Mateo 222
Lawrence 215
Princeton 215
New York 182
Cambridge 177
Abidjan 142
Moscow 128
San Diego 107
Marche 104
Centro 58
Milan 57
Turin 44
Beijing 43
Redmond 42
Brussels 35
London 31
Los Angeles 28
The Dalles 28
Venice 28
Washington 25
Izmir 24
Shanghai 23
Helsinki 21
Auburn Hills 19
São Paulo 19
Mexico City 18
Norwalk 18
Jiaxing 15
Guangzhou 14
Wuhan 14
Munich 12
Civitanova Marche 11
Dallas 10
Bologna 9
Montréal 9
Rio de Janeiro 9
Rome 8
Kilburn 7
Ottawa 7
Shenzhen 7
Ancona 6
Bari 6
Osimo 6
Salvador 6
Santa Clara 6
Seoul 6
West Jordan 6
Wuxi 6
Acton 5
Manaus 5
Nairobi 5
Recife 5
Tokyo 5
Vienna 5
Asunción 4
Belgrade 4
Brasília 4
Campinas 4
Falls Church 4
Frankfurt am Main 4
Goiânia 4
Guarulhos 4
Hanover 4
Istanbul 4
Quanzhou 4
Toronto 4
Wandsworth 4
Appignano 3
Belo Horizonte 3
Betim 3
Campi Bisenzio 3
Cingoli 3
Delhi 3
Dhaka 3
Duque de Caxias 3
Florence 3
Hounslow 3
Kraków 3
Nuremberg 3
Prescot 3
Qingdao 3
Redwood City 3
Santo André 3
Tappahannock 3
Uberlândia 3
Volta Redonda 3
Totale 9.002
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Nome #
14. Streptococchi. 195
13. Stafilococchi 188
Antimicrobial Resistance: A Challenge for the Future 176
ELEMENTI INTEGRATIVI E CONIUGATIVI NEGLI STREPTOCOCCHI 136
Characterization of novel conjugative multiresistance plasmids carrying cfr from linezolid-resistant Staphylococcus epidermidis clinical isolates from Italy 128
Prophage association of mef(A) elements encoding efflux-mediated erythromycin resistance in Streptococcus pyogenes. 127
Antimicrobial properties of N-carboxybutyl chitosan. 123
Characterization of poxtA, a novel phenicol-oxazolidinone-tetracycline resistance gene from an MRSA of clinical origin 122
Characterization of a Multiresistance Plasmid Carrying the optrA and cfr Resistance Genes From an Enterococcus faecium Clinical Isolate 120
Plasmid-mediated sulfonamide resistance in Neisseria meningitidis. 114
A clone of linezolid-resistant Staphylococcus epidermidis bearing the G2576T mutation is endemic in an Italian hospital 114
Nonneutralizing human antibody fragments against hepatitis C virus E2 glycoprotein modulate neutralization of binding activity of human recombinant Fabs. 109
Use of DNA fingerprinting in an epidemiologic study of outbreak-specific and non-specific strains of group C Neisseria meningitidis. 108
Genetic elements carrying erm(B) in Streptococcus pyogenes and association with tet(M) tetracycline resistance gene. 107
Analysis of the β-lactamase plasmid of borderline methicillin- susceptible Staphylococcus aureus: Focus on bla complex genes and cadmium resistance determinants cadD and cadX 107
Absolute quantitation of viremia in human immunodeficiency virus infection by competitive reverse transcription and polymerase chain reaction. 105
Characterization of Tn5801.Sag, a variant of Staphylococcus aureus Tn916 family transposon Tn5801 that is widespread in clinical isolates of Streptococcus agalactiae 103
Interactions with lectins and agglutination profiles of clinical, food, and environmental isolates of Listeria. 102
SmaI typeability and tetracycline susceptibility/resistance in Streptococcus pyogenes isolates with efflux-mediated erythromycin resistance. 100
IN VITRO ANTIBACTERIAL ACTIVITY OF TROVAFLOXACIN AND FIVE OTHER FLUOROQUINOLONES 99
Distribution and molecular analysis of mef(A)-containing elements in tetracycline-susceptible and -resistant Streptococcus pyogenes clinical isolates with efflux-mediated erythromycin resistance. 99
In vitro antibacterial activity of LY333328, a new semisynthetic glycopeptide 97
Cross-infection with Listeria monocytogenes confirmed by DNA fingerprinting. 97
Molecular Characterization of Italian Isolates of Fluoroquinolone-Resistant Streptococcus agalactiae and Relationships with Chloramphenicol Resistance 96
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 96
ICESp1116, the genetic element responsible for erm(B)-mediated, inducible resistance to erythromycin in Streptococcus pyogenes 96
Staphylococcal Diseases. 95
Molecular profile of human immunodeficiency virus type 1 infection in symptomless patients and in patients with AIDS. 93
Prulifloxacin: a viewpoint. 92
Genetic basis of tetracycline resistance in food-borne isolates of Listeria innocua. 92
Dynamics of molecular parameters of human immunodeficiency virus type 1 activity in vivo. 92
Bilateral Acanthamoeba keratitis 92
Recovery from a single blood culture of two Enterococcus gallinarum isolates carrying both vanC-1 and vanA cluster genes and differing in glycopeptide susceptibility 91
Genetic diversity of cell-invasive erythromycin-resistant and -susceptible group A streptococci determined by analysis of the RD2 region of the prtF1 gene. 91
In vitro activities of three semisynthetic amide derivatives of teicoplanin, MDL 62208, MDL 62211, and MDL 62873. 91
Composite SCCmec Element in Single-locus Variant (ST217) of Epidemic MRSA-15 Clone 91
Vancomycin-resistant enterococci. 90
Heterogeneity of Tn5253-Like Composite Elements in Clinical Streptococcus pneumoniae Isolates. 90
Development of in-vitro resistance to glycopeptide antibiotics: assessment in staphylococci of different species 90
Antibiotic resistance in foodborne Listeria. 90
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 90
Association between erythromycin resistance and ability to enter human respiratory cells in group A streptococci. 89
A new mosaic integrative and conjugative element from Streptococcus agalactiae carrying resistance genes for chloramphenicol (catQ) and macrolides [mef(I) and erm(TR)] 88
In vitro activity of teichomycin and vancomycin alone and in combination with rifampin. 87
CLONING AND EXPRESSION OF THE PENICILLINASE FROM A BORDERLINE METHICILLIN-SUSCEPTIBLE STAPHYLOCOCCUS AUREUS STRAIN IN ESCHERICHIA COLI. 87
Clonal spread of macrolide- and tetracycline-resistant [erm(A) tet(O)] emm77 Streptococcus pyogenes isolates in Italy and Norway. 87
A new subtraction technique for molecular cloning of rare antiviral antibody specificities from phage display libraries. 86
In vitro conjugative transfer of VanA vancomycin resistance between Enterococci and Listeriae of different species 86
Lectin reactivity and virulence among strains of Listeria monocytogenes determined in vitro using the enterocyte-like cell line Caco-2. 86
La resistenza agli antibiotici negli stafilococchi. 84
Persistence of erythromycin-resistant group a streptococci in cultured respiratory cells. 84
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 84
An improved phage display vector for antibody repertoire cloning by construction of combinatorial libraries 84
Differentiation of resistance phenotypes among erythromycin-resistant pneumococci 82
Adherence of gram-negative uropathogens to human uroepithelial cells 82
Further characterization of borderline methicillin-resistant Staphylococcus aureus and analysis of penicillin-binding proteins 82
In vitro activity of monoclonal and recombinant yeast killer toxin-like antibodies against antibiotic-resistant Gram-positive cocci. 81
Expressed and unexpressed tet(M) genes and the erm(B)-carrying Tn1116 transposon in Streptococcus pyogenes and Streptococcus pneumoniae. 81
Phosphatase activity of staphylococci is constitutive in some species and repressed by phosphates in others 81
Characterization of a Streptococcus suis tet(O/W/32/O)-carrying element transferable to major streptococcal pathogens. 81
Detection in Italy of two clinical Enterococcus faecium isolates carrying both the oxazolidinone and phenicol resistance gene optrA and a silent multiresistance gene cfr. 81
Genotypic characterization of a nosocomial outbreak of vanA Enterococcus faecalis. 81
Inhibitory activity by barley coffee components towards Streptococcus mutans biofilm. 80
Detection of human immunodeficiency virus type 1 genomic RNA in plasma samples by reverse-transcription polymerase chain reaction. 80
Pitfalls encountered while investigating genetic elements by PCR 80
Antistaphylococcal and antistreptococcal killing kinetics of ciprofloxacin, ofloxacin, sparfloxacin and trovafloxacin 80
Molecular characterization of clinical Streptococcus pneumoniae isolates with reduced susceptibility to fluoroquinolones emerging in Italy 79
Tn5253 family integrative and conjugative elements carrying mef(I) and catQ determinants in Streptococcus pneumoniae and Streptococcus pyogenes 79
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. 78
Transferable erythromycin resistance in Listeria spp. isolated from food. 78
Striking “Seesaw Effect” between Daptomycin Nonsusceptibilityand beta-Lactam Susceptibility in Staphylococcus haemolyticus 78
An electron microscopic study of clinical and laboratory-derived strains of teicoplanin-resistant Staphylococcus haemolyticus 77
Genetic determinants and elements associated with antibiotic resistance in viridans group streptococci 77
Macrolide resistance gene erm(TR) and erm(TR)-carrying genetic elements in Streptococcus agalactiae: characterization of ICESagTR7, a new composite element containing IMESp2907 77
Quantitative PCR and RT-PCR in virology. 76
Conjugative transfer of the erm(A) gene from erythromycin-resistant Streptococcus pyogenes to macrolide-susceptible S. pyogenes, Enterococcus faecalis and Listeria innocua 76
Glycopeptide resistance in coagulase-negative staphylococci. 76
Different genetic elements carrying the tet(W) gene in two human clinical isolates of Streptococcus suis. 76
Staphylococcus delphini sp. nov., a coagulase-positive species isolated from dolphins 76
Detection of hepatitis B virus DNA in serum using synthetic non-radioactive oligonucleotides. 76
Glycopeptide susceptibility profiles of Staphylococcus haemolyticus bloodstream isolates. 75
Streptococcus suis meningitis without history of animal contact, Italy. 75
A multicenter study on central venous catheter-associated infections in Italy 75
Dynamic features of human immunodeficiency virus type 1 (HIV-1) viremia: kinetics of cell-free HIV-1 RNA after therapeutic plasma exchange 74
Activity of roxithromycin against respiratory pathogens 74
Unconventional circularizable bacterial genetic structures carrying antibiotic resistance determinants 74
Immunity assessment in the early stages of amyotrophic lateral sclerosis: a study of virus antibodies and lymphocyte subsets. 73
'Borderline' susceptibility levels to antistaphylococcal activity in Staphylococcus aureus 73
Transduction of the Streptococcus pyogenes bacteriophage Φm46.1, carrying resistance genes mef(A)and tet(O), to other Streptococcus species 73
Two distinct genetic elements are responsible for erm(TR)-mediated erythromycin resistance in tetracycline-susceptible and tetracycline-resistant strains of Streptococcus pyogenes 73
Composite structure of Streptococcus pneumoniae containing the erythromycin efflux resistance gene mef(I) and the chloramphenicol resistance gene catQ 72
Taxonomic study of coagulase-positive staphylococci: bacteriolytic activity pattern analysis 72
Stability of the cargo regions of the cfr-carrying, multiresistance plasmid pSP01 from Staphylococcus epidermidis 72
A novel efflux system in inducibly erythromycin-resistant strains of Streptococcus pyogenes 72
Recurrent skin infection associated with nasal carriage of Panton-Valentine leukocidin-positive methicillin-susceptible Staphylococcus aureus closely related to the EMRSA-15 clone 72
Antimicrobial resistance and susceptibility testing: an evergreen topic. 71
Cross-reactive pseudovirus-neutralizing anti-envelope antibodies coexist with antibodies devoid of such activity in persistent hepatitis C virus infection. 71
Effects of ß-lactamase inhibitors on Staphylococcus aureus susceptibility to penicillin G and penicillinase-resistant penicillins 71
Effects of fluoroquinolones on bacterial adhesion and on preformed biofilm of strains isolated from urinary double J stents. 71
Interactions between glycopeptides and ß-lactams against isogenic pairs of teicoplanin-susceptible/resistant strains of Staphylococcus haemolyticus. 71
Totale 9.051
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Categoria #
all - tutte 78.272
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 78.272
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Totale Lug Ago Sett Ott Nov Dic Gen Feb Mar Apr Mag Giu
2019/2020377 0 0 0 0 0 0 0 0 0 0 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
2024/20252.364 360 276 216 60 83 42 325 106 701 171 24 0
Totale 15.575