نتایج جستجو برای: vertical transmission
تعداد نتایج: 334431 فیلتر نتایج به سال:
Introduction: Besides from dermal route, recently vertical transmission of hepatitis C has been a matter of investigation and the risk of transmission is evaluated. The aim of this study was to determine the risk of mother-to-infant vertical transmission of hepatitis C. Methods: In this descriptive study, over a period of 2 years, between Aug. 1998 and Jun. 2000, two thousands pregnant women ...
Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-COV-2) is responsible for COVID-19 disease that is transmitted from human to human via respiratory droplets and contact routes. There is no clear accurate evidence about intrauterine transmission of COVID-19 infection among newborns. Case present :The present report aims at provid ing accurate and clear information about a one-day singleton...
BACKGROUND A host obtains symbionts by horizontal transmission when infected from the environment or contagiously from other hosts in the same generation. In contrast, vertical transmission occurs when a host obtains its symbionts directly from its parents. Either vertical or horizontal transmission can sustain an association between a host and its symbiont. QUESTIONS What evolutionary forces...
in this article, we estimate the vertical price transmission through the iranian rice marketing chain by usingmonthly data from march 2000 to february, 2009 and error correction model (ecm).the causality testresults indicate that changes in the producer price clearly led changes in wholesale and retail prices. inproducer-retail and wholesale-retail models, price transmission is asymmetric but i...
background the rate of mother-to-infant hepatitis c virus (hcv) transmission is relatively low, however, this mode of infection is the most important route for childhood hcv involvement. the chances of transmission are increased by the level of maternal hcv viraemia and maternal human immunodeficiency virus (hiv) co infection. objectives the objective of the present study was to determine the p...
Background: The novel coronavirus 2019 (COVID-19) outbreak has put a great burden on global health and healthcare systems. There is controversy regarding the possibility of vertical transmission of COVID-19. The proposed systematic review aims to assess the possibility of vertical transmission of COVID-19 based on currently published literature. Methods: This study will be conducted on all pu...
Background Vertically transmitted group B Streptococcus (GBS) causes fetal and neonatal infections. However, there is limited information on the vertical transmission of GBS in low-income countries. This study, therefore, aimed to determine the rate of vertical transmission of GBS and associated factors among pregnant women in Eastern Ethiopia. Subjects and methods A cross-sectional, facility...
In parasites with mixed modes of transmission, ecological conditions may determine the relative importance of vertical and horizontal transmission for parasite fitness. This may lead to differential selection pressure on the efficiency of the two modes of transmission and on parasite virulence. In populations with high birth rates, increased opportunities for vertical transmission may select fo...
Introduction ....................................................................................................................................145 Phylogenetic Position and Genomic Properties ............................................................................146 Ancient Eukaryotes............................................................................................................
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