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N. Pieniąžek · SciRah

Researcher profile · Semantic Scholar

N. Pieniąžek

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N. Pieniąžek — researcher profile on SciRah

h-index: 47
Works: 120
Citations: 7,264

Most-cited papers

Nosema ceranae n. sp. (Microspora, Nosematidae), morphological and molecular characterization of a microsporidian parasite of the Asian honey bee Apis cerana (Hymenoptera, Apidae)
I. Fries, F. Feng, A. D. da Silva, S. Slemenda +1 more
1996513 citations
Semantic Scholar
Morphologic and molecular characterization of new Cyclospora species from Ethiopian monkeys: C. cercopitheci sp.n., C. colobi sp.n., and C. papionis sp.n.
M. Eberhard, A. D. da Silva, Bruce G. Lilley, N. Pieniąžek
1999Emerging Infectious Diseases412 citations Open access
Semantic Scholar
Development of a PCR protocol for sensitive detection of Cryptosporidium oocysts in water samples
David W. Johnson, N. Pieniąžek, Dale W. Griffin, L. Misener +1 more
1995Applied and Environmental Microbiology360 citations Open access
Semantic Scholar
Molecular Characterization of a Non–Babesia divergens Organism Causing Zoonotic Babesiosis in Europe
B. Herwaldt, S. Cacciò, F. Gherlinzoni, H. Aspöck +10 more
2003Emerging Infectious Diseases345 citations Open access
Semantic Scholar
Genetic variation in Pneumocystis carinii isolates from different geographic regions: implications for transmission.
C. Beard, J. Carter, S. Keely, Laurence Huang +16 more
2000Emerging Infectious Diseases249 citations Open access
Semantic Scholar
PCR as a Confirmatory Technique for Laboratory Diagnosis of Malaria
S. Johnston, N. Pieniąžek, Maniphet V. Xayavong, S. Slemenda +2 more
2006Journal of Clinical Microbiology246 citations Open access
Semantic Scholar
New cryptosporidium genotypes in HIV-infected persons.
N. Pieniąžek, F. Bornay-Llinares, S. Slemenda, A. D. da Silva +4 more
1999Emerging Infectious Diseases244 citations Open access
Semantic Scholar
Amplification and sequencing of DNA from a 120–135-million-year-old weevil
R. Cano, H. Poinar, N. Pieniąžek, A. Acra +1 more
1993Nature243 citations
Semantic Scholar
Molecular characterisation of Babesia canis canis and Babesia canis vogeli from naturally infected European dogs.
S. Cacciò, B. Antunović, A. Moretti, V. Mangili +4 more
2002Veterinary parasitology212 citations
Semantic Scholar
Fast and reliable extraction of protozoan parasite DNA from fecal specimens.
A. Dasilva, F. Bornay-Llinares, I. Moura, S. Slemenda +2 more
1999Molecular diagnosis (Print)189 citations
Semantic Scholar
Sulfa or sulfone prophylaxis and geographic region predict mutations in the Pneumocystis carinii dihydropteroate synthase gene.
L. Huang, C. Beard, J. Creasman, D. Levy +7 more
2000Journal of Infectious Diseases163 citations Open access
Semantic Scholar
Polymerase chain reaction and culture confirmation of disseminated Encephalitozoon cuniculi in a patient with AIDS: successful therapy with albendazole.
M. D. de Groote, G. Visvesvara, M. Wilson, N. Pieniąžek +5 more
1995Journal of Infectious Diseases158 citations
Semantic Scholar
Effect of mutations in Pneumocystis carinii dihydropteroate synthase gene on outcome of P carinii pneumonia in patients with HIV-1: a prospective study.
T. Navin, C. Beard, Laurence Huang, C. D. del Río +6 more
2001The Lancet124 citations Open access
Semantic Scholar
Sensitive PCR diagnosis of Infections by Enterocytozoon bieneusi (microsporidia) using primers based on the region coding for small-subunit rRNA
A. da Silva, D. A. Schwartz, G. Visvesvara, H. de Moura +2 more
1996Journal of Clinical Microbiology124 citations Open access
Semantic Scholar
Detection of Cryptosporidium parvum and Giardia lamblia carried by synanthropic flies by combined fluorescent in situ hybridization and a monoclonal antibody.
T. Graczyk, B. Grimes, Ronald Knight, A. D. da Silva +2 more
2003American Journal of Tropical Medicine and Hygiene120 citations
Semantic Scholar
Identification of Leishmania spp. by Molecular Amplification and DNA Sequencing Analysis of a Fragment of rRNA Internal Transcribed Spacer 2
M. D. de Almeida, F. Steurer, O. Koru, B. Herwaldt +2 more
2011Journal of Clinical Microbiology119 citations Open access
Semantic Scholar
Babesia divergens–like Infection, Washington State
B. Herwaldt, G. de Bruyn, N. Pieniąžek, M. Homer +5 more
2004Emerging Infectious Diseases119 citations Open access
Semantic Scholar
Laboratory diagnosis of Cyclospora infections.
M. Eberhard, N. Pieniąžek, M. Arrowood
1997Archives of Pathology & Laboratory Medicine116 citations
Semantic Scholar
16S-like rDNA sequences from Developayella elegans, Labyrinthuloides haliotidis, and Proteromonas lacertae confirm that the stramenopiles are a primarily heterotrophic group
D. Leipe, S. Tong, C. Louise Goggin, Susan B. Slemenda +2 more
1996116 citations
Semantic Scholar
Immunologic, microscopic, and molecular evidence of Encephalitozoon intestinalis (Septata intestinalis) infection in mammals other than humans.
F. Bornay-Llinares, A. D. da Silva, Hercules Moura, David A. Schwartz +6 more
1998Journal of Infectious Diseases115 citations Open access
Semantic Scholar
In vitro culture and serologic and molecular identification of Septata intestinalis isolated from urine of a patient with AIDS
G. Visvesvara, A. da Silva, G. P. Croppo, N. Pieniąžek +6 more
1995Journal of Clinical Microbiology98 citations Open access
Semantic Scholar
Phylogenetic relationship among the malaria parasites based on small subunit rRNA gene sequences: monophyletic nature of the human malaria parasite, Plasmodium falciparum.
S. Qari, Ya-Ping Shi, N. Pieniąžek, William E. Collins +1 more
1996Molecular Phylogenetics and Evolution97 citations
Semantic Scholar
The third described case of transfusion‐transmitted Babesia duncani
E. Bloch, B. Herwaldt, D. Leiby, A. Shaieb +11 more
2012Transfusion81 citations
Semantic Scholar
Isolation of Nosema algerae from the cornea of an immunocompetent patient.
G. Visvesvara, M. Belloso, H. Moura, A. da Silva +7 more
1999Journal of Eukaryotic Microbiology80 citations
Semantic Scholar
Cryptosporidiosis in people sharing habitats with free-ranging mountain gorillas (Gorilla gorilla beringei), Uganda.
J. Nizeyi, Dennis Sebunya, Alexandre J. Dasilva, M. Cranfield +2 more
2002American Journal of Tropical Medicine and Hygiene71 citations
Semantic Scholar
Human adenovirus type 41 contains two fibers.
Hung-Yueh Yeh, N. Pieniąžek, Danuta Pieniazek, Hans R. Gelderblom +1 more
1994Virus Research69 citations
Semantic Scholar
Molecular and morphologic characterization of a Cryptosporidium genotype identified in lemurs.
A. D. da Silva, S. Cacciò, Cathy V. Williams, Kimberly Y. Won +4 more
2003Veterinary parasitology68 citations
Semantic Scholar
A single genotype of Encephalitozoon intestinalis infects free-ranging gorillas and people sharing their habitats in Uganda
T. Graczyk, John Bosco-Nizeyi, A. D. da Silva, I. Moura +3 more
2002Parasitology Research66 citations
Semantic Scholar
Cryptosporidium parvum Genotype 2 infections in free-ranging mountain gorillas (Gorilla gorilla beringei) of the Bwindi Impenetrable National Park, Uganda
T. Graczyk, Alexandre J. Dasilva, M. Cranfield, J. Nizeyi +2 more
2001Parasitology Research66 citations
Semantic Scholar
Short‐Term In Vitro Culture and Molecular Analysis of the Microsporidian, Enterocytozoon bieneusi
G. Visvesvara, G. Leitch, N. Pieniąžek, A. D. da Silva +7 more
1995Journal of Eukaryotic Microbiology66 citations
Semantic Scholar
Cryptosporidium parvum oocysts in zebra mussels (Dreissena polymorpha): evidence from the St. Lawrence River
T. Graczyk, D. Marcogliese, Y. de Lafontaine, A. D. da Silva +2 more
2001Parasitology Research64 citations
Semantic Scholar
Morphologic, Host Specificity, and Molecular Characterization of a Hungarian Cryptosporidium meleagridis Isolate
T. Sréter, G. Kovács, A. D. da Silva, N. Pieniąžek +4 more
2000Applied and Environmental Microbiology63 citations Open access
Semantic Scholar
Enterocytozoon bieneusi in animals: rabbits and dogs as new hosts.
C. del Águila, F. Izquierdo, R. Navajas, N. Pieniąžek +4 more
1999Journal of Eukaryotic Microbiology63 citations
Semantic Scholar
Horizontal and vertical transmission of human immunodeficiency virus type 1 dual infections caused by viruses of subtypes B and C.
L. M. Janini, A. Tanuri, M. Schechter, José Mauro Peralta +9 more
1998Journal of Infectious Diseases61 citations Open access
Semantic Scholar
Identification of Enterocytozoon bieneusi spores in respiratory samples from an AIDS patient with a 2-year history of intestinal microsporidiosis
C. del Aguila, Rogelio López-Vélez, S. Fenoy, C. Turrientes +6 more
1997Journal of Clinical Microbiology60 citations Open access
Semantic Scholar
Molecular characterization of Nosema bombi (Microsporidia: Nosematidae) and a note on its sites of infection in Bombus terrestris (Hymenoptera: Apoidea)
I. Fries, A. D. de Ruijter, R. Paxton, A. D. da Silva +2 more
200158 citations
Semantic Scholar
Mechanical transport and transmission of Cryptosporidium parvum oocysts by wild filth flies.
T. Graczyk, R. Fayer, Ronald Knight, Barbara Mhangami-Ruwende +3 more
2000American Journal of Tropical Medicine and Hygiene57 citations Open access
Semantic Scholar
Identification of Cryptosporidium felis in a cow by morphologic and molecular methods.
F. Bornay-Llinares, A. da Silva, I. Moura, P. Myjak +4 more
1999Applied and Environmental Microbiology57 citations
Semantic Scholar
Paravahlkampfia francinae n. sp. Masquerading as an Agent of Primary Amoebic Meningoencephalitis
G. Visvesvara, R. Sriram, Y. Qvarnstrom, K. Bandyopadhyay +3 more
2009Journal of Eukaryotic Microbiology55 citations
Semantic Scholar
Identification of single and dual infections with distinct subtypes of human immunodeficiency virus type 1 by using restriction fragment length polymorphism analysis
L. M. Janini, D. Pieniążek, J. Peralta, M. Schechter +8 more
2004Virus genes55 citations
Semantic Scholar
Transmission of Babesia microti in Minnesota through four blood donations from the same donor over a 6‐month period
B. Herwaldt, David F. Neitzel, J. Gorlin, Kathryn A. Jensen +7 more
2002Transfusion52 citations Open access
Semantic Scholar
Babesia microti and Borrelia bissettii transmission by Ixodes spinipalpis ticks among prairie voles, Microtus ochrogaster, in Colorado
T. Burkot, Brad Schneider, N. Pieniąžek, Christine M. Happ +5 more
2000Parasitology50 citations
Semantic Scholar
Identification of Cryptosporidium felisin a Cow by Morphologic and Molecular Methods
F. Bornay-Llinares, A. D. da Silva, I. Moura, P. Myjak +4 more
1999Applied and Environmental Microbiology50 citations Open access
Semantic Scholar
Prevalence and clinical significance of intestinal microsporidiosis in human immunodeficiency virus-infected patients with and without diarrhea in Germany: a prospective coprodiagnostic study.
Ingo Sobottka, D. A. Schwartz, Justus Schottelius, G. Visvesvara +5 more
1998Clinical Infectious Diseases50 citations Open access
Semantic Scholar
Ultrastructure, Immunofluorescence, Western Blot, and PCR Analysis of Eight Isolates of Encephalitozoon(Septata) intestinalis Established in Culture from Sputum and Urine Samples and Duodenal Aspirates of Five Patients with AIDS
C. del Aguila, G. P. Croppo, H. Moura, A. da Silva +6 more
1998Journal of Clinical Microbiology48 citations Open access
Semantic Scholar
Sequence variation in the cytochrome oxidase I, internal transcribed spacer 1, and Ts14 diagnostic antigen sequences of Taenia solium isolates from South and Central America, India, and Asia.
K. Hancock, D. E. Broughel, I. Moura, A. Khan +5 more
2001International Journal of Parasitology47 citations
Semantic Scholar
Reevaluating the molecular taxonomy: is human-associated Cyclospora a mammalian Eimeria species?
N. Pieniąžek, B. Herwaldt
1997Emerging Infectious Diseases47 citations Open access
Semantic Scholar
Tubulinosema sp. Microsporidian Myositis in Immunosuppressed Patient
M. Choudhary, M. Metcalfe, K. Arrambide, C. Bern +8 more
2011Emerging Infectious Diseases45 citations Open access
Semantic Scholar
Differentiating Dracunculus medinensis from D. insignis, by the sequence analysis of the 18S rRNA gene
L. Bimi, A. Freeman, Mark L. Eberhard, E. Ruiz-tibén +1 more
2005Annals of Tropical Medicine and Parasitology45 citations
Semantic Scholar
Detection of Enterocytozoon bieneusi in two human immunodeficiency virus-negative patients with chronic diarrhea by polymerase chain reaction in duodenal biopsy specimens and review.
J. Gainzarain, A. Canut, M. Lozano, A. Labora +6 more
1998Clinical Infectious Diseases41 citations
Semantic Scholar

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A. D. da Silva×17
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A. D. da Silva — researcher profile on SciRah
S. Slemenda×14
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G. Visvesvara×11
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I. Moura — researcher profile on SciRah

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T. Graczyk — researcher profile on SciRah

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A. da Silva — researcher profile on SciRah

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S. Cacciò — researcher profile on SciRah