A screen shot of actress Zhang Ziyi's Weibo entry made on March 20. [Photo/Weibo]

"Little Xingxing is almost three months old. I took her to vaccinate and asked the nurse whether I could look at the name, scale and shelf life of the vaccination, and they were very cooperative because there were incidents where children were over-vaccinated in the US. To avoid unnecessary complications, parents should 'ask more' before the doctor or the nurse gives the shot, and I think they would all understand. Little Xingxing's next shot will be in Beijing, and I think I'll ask even more thoroughly!"