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Biology: The Unity and Diversity o...
Biology: The Unity and Diversity o...
The rubella virus causes German measles. If a pregnant woman is is infected by the rubella virus during the first trimester of her pregnancy, her child may be born deaf or blind. Infections later in pregnancy do not increase the risk of these effects. Explain why.
Concept introduction: Rubella is an airborne virus that causes German measles. Pregnant women affected with Rubella have children that have congenital rubella syndrome (CRS).
To explain: Rubella infection of a pregnant woman in her first trimester results in a child with hearing and vision incapability, whereas during later stages of pregnancy, it does not increase the risk of these effects.
Chapter 42 Solutions
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