Before pregnancy, a woman should make sure she is free of disease, especially of such diseases as German measles, which is the cause of many birth defects such as CHD, deafness, and mental retardation.
婦女在孕前，若有疾病最好盡快接受良好的醫療；也要確定對德國麻疹具有免疫力，必要時須注射疫苗。