Vaccine Safety

Vaccines are well-tested, safe and effective in preventing serious diseases like polio, measles and pertussis (whooping cough). However, like any type of medications, vaccines may also have side effects. So, it’s understandable that individuals have questions about vaccines; their safety and effectiveness, especially since myths and misinformation about vaccine safety are readily found on the internet and can confuse individuals who are trying to make sound decisions about their own health, as well as children's. Due to the overwhelming amount of information on the internet and the media we want to help answer your questions with accurate reliable information and resources. The following links are reliable and accurate sites for information that you can trust:

Contact Information

Stanislaus County Immunization Program
401 Paradise Rd, Modesto, CA 95351
Modesto, CA 95351

Contact Us:
Phone: 209-558-7700
Fax: 209-558-5014

Coronavirus Information
Phone: 209-558-7535

Walk In Services:

Sexual Health & Anonymous HIV Testing:
Monday: 1:00pm - 5:00pm

*Last registration for walk-in clients is 30 minutes before closing - no exceptions

Services By Appointment Only:

Monday: 8:00am - 5:00pm

Frequently Asked Questions

Browse our Immunization Program FAQ.

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