Heavy drinking during pregnancy can lead to spontaneousabortion or a range of disabilities known as fetal alcohol spectrum disorders, of which fetal alcohol syndrome is the most severe.
怀孕期间酗酒可能导致自然流产或被称为胎儿酒精谱系障碍的一系列残疾，其中以胎儿醇中毒综合征最为严重。
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The pictures depict more grotesque health effects than the smaller labels recommended in the United States, including one showing a fetus with the warning that smoking can cause spontaneousabortion.
Only one dose of the live vaccine is required to provide long-term immunity but the vaccine that is currently in use may result in spontaneousabortion if given to pregnant animals.