Answer:
Scientific studies has found no bases for the claim.
Explanation:
The rumor that vaccines is link to autism spectrum disorder has no bases because it has not been proven scientifically.
It should be noted that before a notion can be accepted scientifically, it must pass through observations, gathering of data, forming and testing theories, and interpreting results.
But the news going around that vaccine is link to autism spectrum disorder, didn't pass through those processes, that's why it is not scientifically accepted.
Note that, autism spectrum disorder is a disorder that affects communication, behavior, thinking and feeling.
A man with HIV can result in an unborn child with HIV through infection via body fluids.
<h3>What is Placenta?</h3>
This is usually formed on the uterine wall and helps to provide attachment and supply of nutrients from the mother.
When a man has HIV and has unsafe sexual intercourse with a woman, she contacts it. During pregnancy, HIV can pass through the placenta and lead to infection of the unborn child especially when the amniotic sack breaks.
Read more about HIV here brainly.com/question/1686219
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I believe a doctor that takes care for the trachea is an <span>otolaryngologist.</span>