June 9, 2025

FDA approves ENFLONSIA™ (clesrovimab-cfor). Learn more.

View Press Release
View Press Release
March 26, 2025

M-M-R®_II (Measles, Mumps, and Rubella Virus Vaccine Live) vaccine is currently available. Please click here for more information.

View PDF
View PDF

Merck Vaccines help

This section is designed to assist you as you encounter questions while using Merck Vaccines.

Contact us

877.VAX.MERCK (877.829.6372)

Monday to Friday

8:00 AM to 7:00 PM ET

Or

Request a callback

Request a callback

Popular help topics

My profile and accounts

My profile and accounts

Order history

Placing an order

Placing an order

Contact options

Contact options

Updating profile information

Updating profile information

Tracking an order

Tracking an order