Thiomersal - Questions and Answers

This in-depth fact sheet provides common questions and answers related to the use of thiomersal (also known as thimerosal) in vaccines. It includes general information about thiomersal, which vaccines contain it and why, updates on additional research and alternatives, and the World Health Organization's position on the issue.

Author(s): World Health Organization

Published: 2011

  • Visit web page (English)

    (Located at www.who.int)

  • Visit web page (Arabic)

    Also known as: مادة الثيومرسال - أسئلة وأجوبة

    (Located at www.who.int)

  • Visit web page (Chinese)

    Also known as: 硫柳汞 – 问答

    (Located at www.who.int)

  • Visit web page (French)

    Also known as: Thiomersal - questions/réponses

    (Located at www.who.int)

  • Visit web page (Russian)

    Also known as: Тиомерсал: вопросы и ответы

    (Located at www.who.int)

  • Visit web page (Spanish)

    Also known as: Tiomersal - preguntas y respuestas

    (Located at www.who.int)

Resource types: Fact sheet

Diseases: Not disease/vaccine specific

Topics: Vaccine safety

Regions: Global