IRIS
VARALDO, Pietro
 Distribuzione geografica
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Continente #
NA - Nord America 13.935
EU - Europa 7.337
AS - Asia 5.207
SA - Sud America 1.028
AF - Africa 296
Continente sconosciuto - Info sul continente non disponibili 239
OC - Oceania 8
Totale 28.050
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Nazione #
US - Stati Uniti d'America 13.730
RU - Federazione Russa 2.239
SG - Singapore 1.751
UA - Ucraina 1.082
VN - Vietnam 1.074
BR - Brasile 799
SE - Svezia 769
CN - Cina 735
IT - Italia 674
TR - Turchia 564
DE - Germania 560
IE - Irlanda 528
DK - Danimarca 421
HK - Hong Kong 401
FR - Francia 365
FI - Finlandia 279
GB - Regno Unito 246
KR - Corea 226
CI - Costa d'Avorio 157
IN - India 97
MX - Messico 80
CA - Canada 79
AR - Argentina 78
BD - Bangladesh 62
IQ - Iraq 51
CO - Colombia 41
ID - Indonesia 41
BE - Belgio 37
MA - Marocco 37
ZA - Sudafrica 36
EC - Ecuador 31
JP - Giappone 29
VE - Venezuela 28
ES - Italia 27
NL - Olanda 27
PK - Pakistan 26
PH - Filippine 24
UZ - Uzbekistan 22
PL - Polonia 21
PY - Paraguay 19
TN - Tunisia 19
KE - Kenya 16
SA - Arabia Saudita 16
DZ - Algeria 13
LT - Lituania 13
CL - Cile 12
AE - Emirati Arabi Uniti 11
CR - Costa Rica 10
AT - Austria 9
EU - Europa 9
MY - Malesia 9
BO - Bolivia 8
JM - Giamaica 8
AL - Albania 7
IL - Israele 7
JO - Giordania 7
PE - Perù 7
TH - Thailandia 7
TT - Trinidad e Tobago 7
AZ - Azerbaigian 6
HN - Honduras 6
RS - Serbia 6
AU - Australia 5
DO - Repubblica Dominicana 5
KZ - Kazakistan 5
NG - Nigeria 5
NP - Nepal 5
PS - Palestinian Territory 5
EG - Egitto 4
ET - Etiopia 4
LB - Libano 4
OM - Oman 4
SY - Repubblica araba siriana 4
UY - Uruguay 4
BA - Bosnia-Erzegovina 3
BG - Bulgaria 3
GT - Guatemala 3
HR - Croazia 3
LK - Sri Lanka 3
MK - Macedonia 3
NI - Nicaragua 3
NZ - Nuova Zelanda 3
PT - Portogallo 3
RO - Romania 3
BH - Bahrain 2
CG - Congo 2
CZ - Repubblica Ceca 2
GE - Georgia 2
SV - El Salvador 2
TW - Taiwan 2
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
KH - Cambogia 1
Totale 27.812
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Città #
Dallas 3.152
Ashburn 1.375
Singapore 1.114
Jacksonville 1.072
Chandler 1.038
Fairfield 620
Boardman 544
Dublin 526
Wilmington 401
Hong Kong 379
San Jose 368
Council Bluffs 365
Ho Chi Minh City 339
Woodbridge 318
Des Moines 303
Hanoi 260
Houston 248
Ann Arbor 247
Seattle 247
New York 233
San Mateo 221
Lawrence 214
Princeton 214
Beijing 198
Lauterbourg 187
Cambridge 175
The Dalles 171
Moscow 167
Abidjan 157
Los Angeles 151
Hefei 126
San Diego 109
Marche 102
Milan 96
São Paulo 78
Da Nang 64
Munich 56
Helsinki 52
Centro 50
Santa Clara 50
London 48
Haiphong 47
Buffalo 45
Orem 43
Turin 43
Mexico City 38
Brussels 36
Chicago 34
Redmond 32
Rio de Janeiro 30
Venice 28
Tokyo 26
Washington 26
Chennai 25
Shanghai 25
Denver 24
Izmir 24
Montreal 24
Baghdad 21
Brasília 20
Frankfurt am Main 20
Stockholm 20
Tashkent 20
Auburn Hills 19
Norwalk 18
Phoenix 18
Manchester 17
Wuhan 17
Hải Dương 16
Toronto 16
Turku 16
Warsaw 16
Belo Horizonte 15
Boston 15
Guangzhou 15
Jiaxing 15
Nairobi 15
Brooklyn 14
Biên Hòa 13
Miano 13
Poplar 13
Atlanta 12
Caracas 12
Guarulhos 12
Johannesburg 12
Salvador 12
Asunción 11
Civitanova Marche 11
Curitiba 11
Dhaka 11
Fortaleza 11
Mumbai 11
New Delhi 11
Ottawa 10
Tunis 10
Bogotá 9
Campinas 9
Cape Town 9
Manaus 9
Montréal 9
Totale 16.969
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Nome #
13. Stafilococchi 2.317
14. Streptococchi. 2.282
A clone of linezolid-resistant Staphylococcus epidermidis bearing the G2576T mutation is endemic in an Italian hospital 212
Characterization of novel conjugative multiresistance plasmids carrying cfr from linezolid-resistant Staphylococcus epidermidis clinical isolates from Italy 191
Characterization of a Multiresistance Plasmid Carrying the optrA and cfr Resistance Genes From an Enterococcus faecium Clinical Isolate 188
Characterization of poxtA, a novel phenicol-oxazolidinone-tetracycline resistance gene from an MRSA of clinical origin 181
Antimicrobial properties of N-carboxybutyl chitosan. 178
Analysis of the β-lactamase plasmid of borderline methicillin- susceptible Staphylococcus aureus: Focus on bla complex genes and cadmium resistance determinants cadD and cadX 177
Prophage association of mef(A) elements encoding efflux-mediated erythromycin resistance in Streptococcus pyogenes. 170
Absolute quantitation of viremia in human immunodeficiency virus infection by competitive reverse transcription and polymerase chain reaction. 168
Genetic basis of the association of resistance genes mef(I) (macrolides) and catQ (chloramphenicol) in streptococci 163
A new mosaic integrative and conjugative element from Streptococcus agalactiae carrying resistance genes for chloramphenicol (catQ) and macrolides [mef(I) and erm(TR)] 162
ELEMENTI INTEGRATIVI E CONIUGATIVI NEGLI STREPTOCOCCHI 162
Antibiotic resistance in foodborne Listeria. 160
Macrolide resistance gene erm(TR) and erm(TR)-carrying genetic elements in Streptococcus agalactiae: characterization of ICESagTR7, a new composite element containing IMESp2907 159
Genetic elements carrying erm(B) in Streptococcus pyogenes and association with tet(M) tetracycline resistance gene. 158
SmaI typeability and tetracycline susceptibility/resistance in Streptococcus pyogenes isolates with efflux-mediated erythromycin resistance. 157
Composite SCCmec Element in Single-locus Variant (ST217) of Epidemic MRSA-15 Clone 156
Characterization of Tn5801.Sag, a variant of Staphylococcus aureus Tn916 family transposon Tn5801 that is widespread in clinical isolates of Streptococcus agalactiae 155
Plasmid-mediated sulfonamide resistance in Neisseria meningitidis. 153
Activity of roxithromycin against respiratory pathogens 153
Distribution and molecular analysis of mef(A)-containing elements in tetracycline-susceptible and -resistant Streptococcus pyogenes clinical isolates with efflux-mediated erythromycin resistance. 153
Nonneutralizing human antibody fragments against hepatitis C virus E2 glycoprotein modulate neutralization of binding activity of human recombinant Fabs. 151
Dynamic features of human immunodeficiency virus type 1 (HIV-1) viremia: kinetics of cell-free HIV-1 RNA after therapeutic plasma exchange 151
Different genetic elements carrying the tet(W) gene in two human clinical isolates of Streptococcus suis. 150
An electron microscopic study of clinical and laboratory-derived strains of teicoplanin-resistant Staphylococcus haemolyticus 150
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 149
Characterization of a Streptococcus suis tet(O/W/32/O)-carrying element transferable to major streptococcal pathogens. 148
Molecular Characterization of Italian Isolates of Fluoroquinolone-Resistant Streptococcus agalactiae and Relationships with Chloramphenicol Resistance 148
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 148
Dynamics of molecular parameters of human immunodeficiency virus type 1 activity in vivo. 147
Adherence of gram-negative uropathogens to human uroepithelial cells 147
'Borderline' susceptibility levels to antistaphylococcal activity in Staphylococcus aureus 145
An improved phage display vector for antibody repertoire cloning by construction of combinatorial libraries 145
Tn5253 family integrative and conjugative elements carrying mef(I) and catQ determinants in Streptococcus pneumoniae and Streptococcus pyogenes 144
Use of DNA fingerprinting in an epidemiologic study of outbreak-specific and non-specific strains of group C Neisseria meningitidis. 142
Association between erythromycin resistance and ability to enter human respiratory cells in group A streptococci. 141
Clonal spread of macrolide- and tetracycline-resistant [erm(A) tet(O)] emm77 Streptococcus pyogenes isolates in Italy and Norway. 140
Genetic basis of tetracycline resistance in food-borne isolates of Listeria innocua. 139
A multicenter study on central venous catheter-associated infections in Italy 139
ICESp1116, the genetic element responsible for erm(B)-mediated, inducible resistance to erythromycin in Streptococcus pyogenes 138
Development of in-vitro resistance to glycopeptide antibiotics: assessment in staphylococci of different species 138
Interactions with lectins and agglutination profiles of clinical, food, and environmental isolates of Listeria. 137
Molecular profile of human immunodeficiency virus type 1 infection in symptomless patients and in patients with AIDS. 137
Bilateral Acanthamoeba keratitis 137
Cross-infection with Listeria monocytogenes confirmed by DNA fingerprinting. 136
A new subtraction technique for molecular cloning of rare antiviral antibody specificities from phage display libraries. 133
Pitfalls encountered while investigating genetic elements by PCR 131
Antistaphylococcal and antistreptococcal killing kinetics of ciprofloxacin, ofloxacin, sparfloxacin and trovafloxacin 131
Vancomycin-resistant enterococci. 130
CLONING AND EXPRESSION OF THE PENICILLINASE FROM A BORDERLINE METHICILLIN-SUSCEPTIBLE STAPHYLOCOCCUS AUREUS STRAIN IN ESCHERICHIA COLI. 129
Genetic diversity of cell-invasive erythromycin-resistant and -susceptible group A streptococci determined by analysis of the RD2 region of the prtF1 gene. 129
Transduction of the Streptococcus pyogenes bacteriophage Φm46.1, carrying resistance genes mef(A)and tet(O), to other Streptococcus species 129
Recurrent skin infection associated with nasal carriage of Panton-Valentine leukocidin-positive methicillin-susceptible Staphylococcus aureus closely related to the EMRSA-15 clone 129
Heterogeneity of Tn5253-Like Composite Elements in Clinical Streptococcus pneumoniae Isolates. 128
Phim46.1, the main Streptococcus pyogenes element carrying mef(A) and tet(O) genes. 128
Staphylococcal Diseases. 127
In vitro antibacterial activity of LY333328, a new semisynthetic glycopeptide 127
In vitro conjugative transfer of VanA vancomycin resistance between Enterococci and Listeriae of different species 127
Composite structure of Streptococcus pneumoniae containing the erythromycin efflux resistance gene mef(I) and the chloramphenicol resistance gene catQ 125
Antibiotic resistance, beta-lactamase activity, and plasmid content in strains of Haemophilus and Branhamella isolated from children 125
Detection in Italy of two clinical Enterococcus faecium isolates carrying both the oxazolidinone and phenicol resistance gene optrA and a silent multiresistance gene cfr. 125
IN VITRO ANTIBACTERIAL ACTIVITY OF TROVAFLOXACIN AND FIVE OTHER FLUOROQUINOLONES 124
Prulifloxacin: a viewpoint. 123
Staphylococcus delphini sp. nov., a coagulase-positive species isolated from dolphins 123
In vitro activity of teichomycin and vancomycin alone and in combination with rifampin. 122
La resistenza agli antibiotici negli stafilococchi. 121
Recovery from a single blood culture of two Enterococcus gallinarum isolates carrying both vanC-1 and vanA cluster genes and differing in glycopeptide susceptibility 121
Streptococcus suis meningitis without history of animal contact, Italy. 121
A novel efflux system in inducibly erythromycin-resistant strains of Streptococcus pyogenes 121
Further characterization of borderline methicillin-resistant Staphylococcus aureus and analysis of penicillin-binding proteins 120
Antibiotic susceptibility and serotype distribution in Streptococcus pneumoniae circulating in Italy: results of the SEMPRE surveillance study (2000-2002) 119
Genetic determinants and elements associated with antibiotic resistance in viridans group streptococci 119
Cross-reactive pseudovirus-neutralizing anti-envelope antibodies coexist with antibodies devoid of such activity in persistent hepatitis C virus infection. 118
Immunity assessment in the early stages of amyotrophic lateral sclerosis: a study of virus antibodies and lymphocyte subsets. 118
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 118
Differentiation of resistance phenotypes among erythromycin-resistant pneumococci 117
Unconventional circularizable bacterial genetic structures carrying antibiotic resistance determinants 117
In vitro activities of three semisynthetic amide derivatives of teicoplanin, MDL 62208, MDL 62211, and MDL 62873. 117
Detection of human immunodeficiency virus type 1 genomic RNA in plasma samples by reverse-transcription polymerase chain reaction. 116
Conjugative transfer of the erm(A) gene from erythromycin-resistant Streptococcus pyogenes to macrolide-susceptible S. pyogenes, Enterococcus faecalis and Listeria innocua 116
Phosphatase activity of staphylococci is constitutive in some species and repressed by phosphates in others 116
Effects of fluoroquinolones on bacterial adhesion and on preformed biofilm of strains isolated from urinary double J stents. 115
Lectin reactivity and virulence among strains of Listeria monocytogenes determined in vitro using the enterocyte-like cell line Caco-2. 115
Expressed and unexpressed tet(M) genes and the erm(B)-carrying Tn1116 transposon in Streptococcus pyogenes and Streptococcus pneumoniae. 114
Glycopeptide susceptibility profiles of Staphylococcus haemolyticus bloodstream isolates. 114
Persistence of erythromycin-resistant group a streptococci in cultured respiratory cells. 114
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 114
Quantitative PCR and RT-PCR in virology. 113
erm(B)-Carrying Elements in Tetracycline-Resistant Pneumococci and Correspondence between Tn1545 and Tn6003 113
Two distinct genetic elements are responsible for erm(TR)-mediated erythromycin resistance in tetracycline-susceptible and tetracycline-resistant strains of Streptococcus pyogenes 113
In vitro activity of monoclonal and recombinant yeast killer toxin-like antibodies against antibiotic-resistant Gram-positive cocci. 112
Antimicrobial resistance and susceptibility testing: an evergreen topic. 112
Inhibitory activity by barley coffee components towards Streptococcus mutans biofilm. 112
Molecular characterization of clinical Streptococcus pneumoniae isolates with reduced susceptibility to fluoroquinolones emerging in Italy 112
Borderline susceptibility to methicillin in Staphylococcus aureus: a new mechanism of resistance? 110
Genetic elements responsible for erythromycin resistance in streptococci 110
Detection of hepatitis B virus DNA in serum using synthetic non-radioactive oligonucleotides. 110
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. 109
Grouping of staphylococci on the basis of their bacteriolytic-activity pattern: a new pproach to the taxonomy of the Micrococcaceae. I. Identification of six different "lyogroups" 109
Totale 17.863
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Categoria #
all - tutte 110.821
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 110.821
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Totale Lug Ago Sett Ott Nov Dic Gen Feb Mar Apr Mag Giu
2021/20221.525 0 384 12 104 15 121 63 93 105 154 146 328
2022/20233.111 265 253 224 299 286 582 2 187 754 22 148 89
2023/20241.493 292 41 98 258 260 242 20 23 6 35 22 196
2024/20252.877 358 274 214 59 83 40 323 102 699 166 214 345
2025/202611.617 481 1.214 2.397 913 675 623 1.428 883 1.985 612 154 252
2026/2027498 266 232 0 0 0 0 0 0 0 0 0 0
Totale 28.050