In the United States, flu shots, most of which contain mercury, are recommended for pregnant women and for infants beginning at 6 months of age.
Of course, this is an outright lie. And it's not like the truth is hard to find:
•All vaccines routinely recommended for children 6 years of age and younger in the U.S. are available in formulations that do not contain thimerosal.
•Vaccines that do not contain thimerosal as a preservative are also available for adolescents and adults.
•A robust body of peer-reviewed scientific studies conducted in the U.S. and other countries support the safety of thimerosal-containing vaccines.
•Preservatives prevent microbial growth.
•The use of thimerosal as a preservative in vaccines has markedly declined due to reformulation and development of vaccines supplied in single-use presentations.
https://www.fda.gov/vaccines-blood-biologics/safety-availability-biologics/thimerosal-and-vaccines