Sentences with phrase «fetus during the first trimester of pregnancy»

Not exact matches

According to University of Michigan Health System it is better to avoid taking any medication during the first trimester of pregnancy, as this is the crucial time when the fetus is developing and is at it's most vulnerable --

During the first trimester of pregnancy, the embryo and later fetus are particularly sensitive to teratogens, or substances that can cause birth defects.

Nearly 94 percent of all pregnancies remained viable when a mock infection was introduced during the first trimester, while the viability of fetuses after Zika infection was reduced, regardless of which strain was used.