IRIS
VARALDO, Pietro
 Distribuzione geografica
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Continente #
NA - Nord America 13.311
EU - Europa 7.309
AS - Asia 5.174
SA - Sud America 1.018
AF - Africa 303
Continente sconosciuto - Info sul continente non disponibili 10
OC - Oceania 8
Totale 27.133
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Nazione #
US - Stati Uniti d'America 13.145
RU - Federazione Russa 2.243
SG - Singapore 1.723
UA - Ucraina 1.086
VN - Vietnam 1.080
BR - Brasile 795
SE - Svezia 772
CN - Cina 717
IT - Italia 616
DE - Germania 569
TR - Turchia 565
IE - Irlanda 531
DK - Danimarca 421
HK - Hong Kong 395
FR - Francia 368
FI - Finlandia 283
GB - Regno Unito 245
KR - Corea 226
CI - Costa d'Avorio 160
IN - India 104
MX - Messico 77
AR - Argentina 76
CA - Canada 64
BD - Bangladesh 63
IQ - Iraq 51
ID - Indonesia 42
BE - Belgio 39
CO - Colombia 39
MA - Marocco 39
ZA - Sudafrica 36
EC - Ecuador 30
JP - Giappone 29
VE - Venezuela 28
ES - Italia 26
PK - Pakistan 26
NL - Olanda 25
PH - Filippine 24
UZ - Uzbekistan 22
PL - Polonia 21
PY - Paraguay 19
TN - Tunisia 19
SA - Arabia Saudita 17
KE - Kenya 16
DZ - Algeria 13
LT - Lituania 13
CL - Cile 12
AE - Emirati Arabi Uniti 11
AT - Austria 10
EU - Europa 9
MY - Malesia 9
BO - Bolivia 8
AL - Albania 7
IL - Israele 7
JO - Giordania 7
NP - Nepal 7
TH - Thailandia 7
AZ - Azerbaigian 6
PE - Perù 6
RS - Serbia 6
AU - Australia 5
CR - Costa Rica 5
DO - Repubblica Dominicana 5
KZ - Kazakistan 5
NG - Nigeria 5
PS - Palestinian Territory 5
TT - Trinidad e Tobago 5
EG - Egitto 4
ET - Etiopia 4
HN - Honduras 4
LB - Libano 4
OM - Oman 4
RO - Romania 4
SY - Repubblica araba siriana 4
UY - Uruguay 4
BA - Bosnia-Erzegovina 3
BG - Bulgaria 3
HR - Croazia 3
JM - Giamaica 3
LK - Sri Lanka 3
MK - Macedonia 3
NZ - Nuova Zelanda 3
BH - Bahrain 2
CG - Congo 2
CM - Camerun 2
CZ - Repubblica Ceca 2
GE - Georgia 2
NO - Norvegia 2
PT - Portogallo 2
SV - El Salvador 2
TW - Taiwan 2
A1 - Anonimo 1
AF - Afghanistan, Repubblica islamica di 1
AM - Armenia 1
BW - Botswana 1
BY - Bielorussia 1
CH - Svizzera 1
CY - Cipro 1
GA - Gabon 1
GR - Grecia 1
GY - Guiana 1
Totale 27.126
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Città #
Dallas 3.189
Ashburn 1.302
Singapore 1.110
Jacksonville 1.075
Chandler 1.047
Fairfield 625
Boardman 547
Dublin 529
Wilmington 402
Hong Kong 373
Ho Chi Minh City 339
Woodbridge 318
Des Moines 303
San Jose 296
Hanoi 263
Ann Arbor 259
Houston 250
Seattle 246
New York 236
San Mateo 222
Lawrence 215
Princeton 215
Beijing 189
Lauterbourg 188
Cambridge 177
The Dalles 172
Moscow 168
Abidjan 160
Los Angeles 148
Hefei 125
San Diego 108
Marche 104
São Paulo 77
Da Nang 64
Milan 63
Munich 61
Centro 58
Helsinki 53
London 48
Haiphong 47
Buffalo 46
Turin 44
Santa Clara 43
Orem 42
Redmond 42
Brussels 38
Mexico City 35
Chicago 31
Rio de Janeiro 30
Venice 28
Tokyo 27
Chennai 25
Washington 25
Izmir 24
Shanghai 24
Denver 22
Baghdad 21
Council Bluffs 20
Frankfurt am Main 20
Montreal 20
Stockholm 20
Tashkent 20
Auburn Hills 19
Brasília 19
Turku 19
Manchester 18
Norwalk 18
Guangzhou 16
Hải Dương 16
Warsaw 16
Wuhan 16
Belo Horizonte 15
Boston 15
Jiaxing 15
Nairobi 15
Biên Hòa 13
Phoenix 13
Poplar 13
Toronto 13
Caracas 12
Guarulhos 12
Johannesburg 12
Salvador 12
Asunción 11
Brooklyn 11
Civitanova Marche 11
Curitiba 11
Dhaka 11
Fortaleza 11
Mumbai 11
New Delhi 11
Rome 11
Atlanta 10
Tunis 10
Bogotá 9
Bologna 9
Campinas 9
Cape Town 9
Manaus 9
Montréal 9
Totale 16.508
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Nome #
13. Stafilococchi 2.309
14. Streptococchi. 2.279
Antimicrobial Resistance: A Challenge for the Future 298
A clone of linezolid-resistant Staphylococcus epidermidis bearing the G2576T mutation is endemic in an Italian hospital 203
Characterization of novel conjugative multiresistance plasmids carrying cfr from linezolid-resistant Staphylococcus epidermidis clinical isolates from Italy 187
Characterization of a Multiresistance Plasmid Carrying the optrA and cfr Resistance Genes From an Enterococcus faecium Clinical Isolate 179
Antimicrobial properties of N-carboxybutyl chitosan. 173
Characterization of poxtA, a novel phenicol-oxazolidinone-tetracycline resistance gene from an MRSA of clinical origin 172
Analysis of the β-lactamase plasmid of borderline methicillin- susceptible Staphylococcus aureus: Focus on bla complex genes and cadmium resistance determinants cadD and cadX 171
Prophage association of mef(A) elements encoding efflux-mediated erythromycin resistance in Streptococcus pyogenes. 166
Absolute quantitation of viremia in human immunodeficiency virus infection by competitive reverse transcription and polymerase chain reaction. 159
ELEMENTI INTEGRATIVI E CONIUGATIVI NEGLI STREPTOCOCCHI 157
A new mosaic integrative and conjugative element from Streptococcus agalactiae carrying resistance genes for chloramphenicol (catQ) and macrolides [mef(I) and erm(TR)] 155
Genetic elements carrying erm(B) in Streptococcus pyogenes and association with tet(M) tetracycline resistance gene. 154
Antibiotic resistance in foodborne Listeria. 154
Genetic basis of the association of resistance genes mef(I) (macrolides) and catQ (chloramphenicol) in streptococci 152
Macrolide resistance gene erm(TR) and erm(TR)-carrying genetic elements in Streptococcus agalactiae: characterization of ICESagTR7, a new composite element containing IMESp2907 151
Composite SCCmec Element in Single-locus Variant (ST217) of Epidemic MRSA-15 Clone 151
SmaI typeability and tetracycline susceptibility/resistance in Streptococcus pyogenes isolates with efflux-mediated erythromycin resistance. 149
Characterization of Tn5801.Sag, a variant of Staphylococcus aureus Tn916 family transposon Tn5801 that is widespread in clinical isolates of Streptococcus agalactiae 149
Distribution and molecular analysis of mef(A)-containing elements in tetracycline-susceptible and -resistant Streptococcus pyogenes clinical isolates with efflux-mediated erythromycin resistance. 148
Plasmid-mediated sulfonamide resistance in Neisseria meningitidis. 147
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 146
Dynamic features of human immunodeficiency virus type 1 (HIV-1) viremia: kinetics of cell-free HIV-1 RNA after therapeutic plasma exchange 145
Activity of roxithromycin against respiratory pathogens 145
An electron microscopic study of clinical and laboratory-derived strains of teicoplanin-resistant Staphylococcus haemolyticus 143
Dynamics of molecular parameters of human immunodeficiency virus type 1 activity in vivo. 142
Nonneutralizing human antibody fragments against hepatitis C virus E2 glycoprotein modulate neutralization of binding activity of human recombinant Fabs. 142
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 142
An improved phage display vector for antibody repertoire cloning by construction of combinatorial libraries 141
Characterization of a Streptococcus suis tet(O/W/32/O)-carrying element transferable to major streptococcal pathogens. 141
Different genetic elements carrying the tet(W) gene in two human clinical isolates of Streptococcus suis. 140
Adherence of gram-negative uropathogens to human uroepithelial cells 140
'Borderline' susceptibility levels to antistaphylococcal activity in Staphylococcus aureus 140
Molecular Characterization of Italian Isolates of Fluoroquinolone-Resistant Streptococcus agalactiae and Relationships with Chloramphenicol Resistance 140
Association between erythromycin resistance and ability to enter human respiratory cells in group A streptococci. 138
Use of DNA fingerprinting in an epidemiologic study of outbreak-specific and non-specific strains of group C Neisseria meningitidis. 137
Development of in-vitro resistance to glycopeptide antibiotics: assessment in staphylococci of different species 136
Clonal spread of macrolide- and tetracycline-resistant [erm(A) tet(O)] emm77 Streptococcus pyogenes isolates in Italy and Norway. 134
Tn5253 family integrative and conjugative elements carrying mef(I) and catQ determinants in Streptococcus pneumoniae and Streptococcus pyogenes 134
ICESp1116, the genetic element responsible for erm(B)-mediated, inducible resistance to erythromycin in Streptococcus pyogenes 134
Interactions with lectins and agglutination profiles of clinical, food, and environmental isolates of Listeria. 133
Genetic basis of tetracycline resistance in food-borne isolates of Listeria innocua. 133
A multicenter study on central venous catheter-associated infections in Italy 133
Molecular profile of human immunodeficiency virus type 1 infection in symptomless patients and in patients with AIDS. 132
Cross-infection with Listeria monocytogenes confirmed by DNA fingerprinting. 132
Bilateral Acanthamoeba keratitis 131
Pitfalls encountered while investigating genetic elements by PCR 129
Antistaphylococcal and antistreptococcal killing kinetics of ciprofloxacin, ofloxacin, sparfloxacin and trovafloxacin 128
A new subtraction technique for molecular cloning of rare antiviral antibody specificities from phage display libraries. 127
CLONING AND EXPRESSION OF THE PENICILLINASE FROM A BORDERLINE METHICILLIN-SUSCEPTIBLE STAPHYLOCOCCUS AUREUS STRAIN IN ESCHERICHIA COLI. 125
Staphylococcal Diseases. 125
Genetic diversity of cell-invasive erythromycin-resistant and -susceptible group A streptococci determined by analysis of the RD2 region of the prtF1 gene. 125
Vancomycin-resistant enterococci. 124
Heterogeneity of Tn5253-Like Composite Elements in Clinical Streptococcus pneumoniae Isolates. 124
Composite structure of Streptococcus pneumoniae containing the erythromycin efflux resistance gene mef(I) and the chloramphenicol resistance gene catQ 123
Recurrent skin infection associated with nasal carriage of Panton-Valentine leukocidin-positive methicillin-susceptible Staphylococcus aureus closely related to the EMRSA-15 clone 123
IN VITRO ANTIBACTERIAL ACTIVITY OF TROVAFLOXACIN AND FIVE OTHER FLUOROQUINOLONES 122
In vitro antibacterial activity of LY333328, a new semisynthetic glycopeptide 122
In vitro conjugative transfer of VanA vancomycin resistance between Enterococci and Listeriae of different species 121
Streptococcus suis meningitis without history of animal contact, Italy. 120
A novel efflux system in inducibly erythromycin-resistant strains of Streptococcus pyogenes 120
Prulifloxacin: a viewpoint. 119
Transduction of the Streptococcus pyogenes bacteriophage Φm46.1, carrying resistance genes mef(A)and tet(O), to other Streptococcus species 119
Cross-reactive pseudovirus-neutralizing anti-envelope antibodies coexist with antibodies devoid of such activity in persistent hepatitis C virus infection. 118
Recovery from a single blood culture of two Enterococcus gallinarum isolates carrying both vanC-1 and vanA cluster genes and differing in glycopeptide susceptibility 118
Antibiotic resistance, beta-lactamase activity, and plasmid content in strains of Haemophilus and Branhamella isolated from children 118
Detection in Italy of two clinical Enterococcus faecium isolates carrying both the oxazolidinone and phenicol resistance gene optrA and a silent multiresistance gene cfr. 118
In vitro activity of teichomycin and vancomycin alone and in combination with rifampin. 117
Genetic determinants and elements associated with antibiotic resistance in viridans group streptococci 117
Staphylococcus delphini sp. nov., a coagulase-positive species isolated from dolphins 117
Immunity assessment in the early stages of amyotrophic lateral sclerosis: a study of virus antibodies and lymphocyte subsets. 116
Phim46.1, the main Streptococcus pyogenes element carrying mef(A) and tet(O) genes. 116
Differentiation of resistance phenotypes among erythromycin-resistant pneumococci 115
La resistenza agli antibiotici negli stafilococchi. 114
In vitro activities of three semisynthetic amide derivatives of teicoplanin, MDL 62208, MDL 62211, and MDL 62873. 113
Further characterization of borderline methicillin-resistant Staphylococcus aureus and analysis of penicillin-binding proteins 113
Glycopeptide susceptibility profiles of Staphylococcus haemolyticus bloodstream isolates. 112
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 112
Conjugative transfer of the erm(A) gene from erythromycin-resistant Streptococcus pyogenes to macrolide-susceptible S. pyogenes, Enterococcus faecalis and Listeria innocua 111
Phosphatase activity of staphylococci is constitutive in some species and repressed by phosphates in others 111
Unconventional circularizable bacterial genetic structures carrying antibiotic resistance determinants 111
Detection of human immunodeficiency virus type 1 genomic RNA in plasma samples by reverse-transcription polymerase chain reaction. 110
Effects of fluoroquinolones on bacterial adhesion and on preformed biofilm of strains isolated from urinary double J stents. 110
erm(B)-Carrying Elements in Tetracycline-Resistant Pneumococci and Correspondence between Tn1545 and Tn6003 110
Antibiotic susceptibility and serotype distribution in Streptococcus pneumoniae circulating in Italy: results of the SEMPRE surveillance study (2000-2002) 110
Two distinct genetic elements are responsible for erm(TR)-mediated erythromycin resistance in tetracycline-susceptible and tetracycline-resistant strains of Streptococcus pyogenes 110
In vitro activity of monoclonal and recombinant yeast killer toxin-like antibodies against antibiotic-resistant Gram-positive cocci. 109
Expressed and unexpressed tet(M) genes and the erm(B)-carrying Tn1116 transposon in Streptococcus pyogenes and Streptococcus pneumoniae. 109
Lectin reactivity and virulence among strains of Listeria monocytogenes determined in vitro using the enterocyte-like cell line Caco-2. 108
Antimicrobial resistance and susceptibility testing: an evergreen topic. 107
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. 107
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 107
Detection of hepatitis B virus DNA in serum using synthetic non-radioactive oligonucleotides. 107
Quantitative PCR and RT-PCR in virology. 106
Molecular characterization of clinical Streptococcus pneumoniae isolates with reduced susceptibility to fluoroquinolones emerging in Italy 106
Borderline susceptibility to methicillin in Staphylococcus aureus: a new mechanism of resistance? 106
Inhibitory activity by barley coffee components towards Streptococcus mutans biofilm. 105
Persistence of erythromycin-resistant group a streptococci in cultured respiratory cells. 105
Restriction endonuclease analysis of chromosomal DNA from Listeria monocytogenes strains 104
Totale 17.516
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Categoria #
all - tutte 103.551
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 103.551
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Totale Lug Ago Sett Ott Nov Dic Gen Feb Mar Apr Mag Giu
2020/2021777 0 0 0 0 0 0 0 0 0 269 347 161
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
2024/20252.915 360 276 216 60 83 42 325 106 701 171 220 355
2025/202611.241 494 1.227 2.430 921 680 626 1.445 888 1.989 541 0 0
Totale 27.367