F. H. Heldt

Publications7
h-index2
Citations40
Highly Influential Citations0
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Hepatitis E Virus in Surface Water, Sediments, and Pork Products Marketed in Southern Brazil
Hepatitis E virus (HEV) is an emerging causative agent of food and waterborne hepatitis in human beings. HEV circulates among human populations and swine herds, and may be found in water contaminated… Expand
  • 29
Pre-treatment of the clinical sample with Proteinase K allows detection of SARS-CoV-2 in the absence of RNA extraction
COVID-19 (Coronavirus Disease 2019) outbreak was declared a pandemic, by World Health Organization, on March 11, 2020. Viral detection using RT-qPCR has been among the most important factors helping… Expand
  • 4
Human adenovirus in tissues of freshwater snails living in contaminated waters
Human adenovirus (HAdV) is resistant to environment and can be used as a marker to detect fecal contamination. Considering the importance of freshwater snails in the aquatic environment, their use as… Expand
  • 2
SARS-CoV2 quantification using RT-dPCR: a faster and safer alternative to assist viral genomic copies assessment using RT-qPCR
In this study, serial dilutions of SARS-CoV 2 RNA extract were tested using RT-dPCR using three different primer-probe assays aiming SARS-CoV 2 nucleocapsid coding region. Narrower confidence… Expand
  • 2
Germination and sporophytic development of Regnellidium diphyllum Lindm. (Marsileaceae) in the presence of copper
Regnellidium diphyllum Lindm. is a heterosporous fern growing in wetlands and humid soils that are being converted to agricultural activities. Many products that are used in agriculture contain… Expand
  • 1
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Comparison of Different Kits for SARS-CoV-2 RNA Extraction Marketed in Brazil
December 2019 marked the begining of the greatest pandemic since Spanish Flu, the disease named Covid-19 that cause severe pneumonia. Until May 19, 2020 more than 4 million and 700 thousand cases… Expand
  • 2
Células da medula óssea protegem a potenciação de longa duração e a memoria espacial em ratos