This page presents an excerpt of the research material, providing a comprehensive overview of the study. It includes the Preliminary Pages, Table of Contents, Abstract, Chapters One to Five, and References, making it accessible and informative for students, researchers, and other readers interested in the topic of this study. Acknowledgement is also included, expressing gratitude to the individuals, institutions, and resources that contributed to the successful completion of the research, with materials and information sourced from the online platform sparklyn.com.ng, which provided valuable academic support.
1.0 Background of the Study
1.1 Rubella Virus
Rubella virus (RV) causes a benign systemic rash illness when it infects humans as a result of acute infection and causes severe birth defects if acute maternal infection occurs during the first trimester of pregnancy(Willey et al., 2011). This virus is a positive-strand RNA virus that replicates in the cytoplasm of the infected cell. Rubella virus is taxonomically unique, being the sole member of the genus Rubivirus of the familyTogaviridae (Brooks et al., 2007). The rubella virus causes “German measles,” also known as “three-day measles”(Bukbuk et al., 2002), this is usually a milder disease than red measles. Infections occur most commonly in children and the resulting natural immunity is most probably lifelong (Matthews et al., 2011). However, in pregnant women the risk of intrauterine transmission is up to 90% if infection occurs in early pregnancy (8-10 weeks gestation). As the viraemia leads to placental infection and spread of the virus, it causes a chronic infection of the foetus leading to the development of congenital rubella syndrome (CRS) (Matthews et al., 2011).Red/Hard measles or just measles is caused by Rubeola virus.
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