Advances in viral metagenomics have paved the way of virus discovery by making the exploration of viruses in any ecosystem possible. Applied to agroecosystems, such an approach opens new possibilities to explore how viruses circulate between insects and plants, which may help to optimise their management. It could also lead to identifying novel entomopathogenic viral resources potentially suitable for biocontrol strategies.
View Article and Find Full Text PDFThe aim of this study was to confirm the taxonomic status of Bielecki, 1994 found on Salmonidae fish. The fish leech was identified based on a diligent morphological analysis as well as COI gene sequence (DNA barcoding). The phylogenetic relationship with other piscicolid leeches was analyzed as well.
View Article and Find Full Text PDFBackground: Cadmium (Cd) and lead (Pb) are toxic elements which, when ingested excessively in food and drinking water, accumulate in selected organs and pass through the placenta barrier to the foetus, showing teratogenic effects. The aim of the study was to determine the concentration of Cd and Pb in blood and placental tissue in women who miscarried.
Methods: The study group consisted of 83 women who miscarried.
Introduction: The effect of chronic hepatitis B virus (HBV) infection on pregnancy is not clear. Hepatitis B virus infection of newborns in the case of natural delivery occurs in 70-90% of cases. Risk factors of infection are the presence of serum HBeAg and HBV DNA level above 10 IU/ml.
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