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Just as chromosomal abnormalities cause the majority of miscarriages, certain chromosomal problems and birth defects can increase the risk that a baby will be stillborn. ... Chromosomal abnormalities are usually determined at conception, but birth defects can be caused by environmental influences during pregnancy.
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Some examples of these influences that contribute to an individual's food choices include individual factors, such as knowledge, personal taste preference, mood, hunger level, health status, special diet requirements, ethnicity, and personal income.
A lot of bacteria, virus and toxins can become a health risk if there is a biological warfare attack. Alphavirus is a small,rounded,enclosed positive virus causing human and animal sickness. Examples include Sindbis virus and Chikungunya virus such then can be the pattern of infections that can cause chronic infections of the vital organs such as the lungs.