Destination guide
What to Check Before Traveling to California Right Now
If someone in your group asks what to check before traveling to California, start here. This page is built to get you from a broad destination read into the specific state or city pages that matter, without making you hunt through the whole site.
Travel start here
Travel to California: one page to send first
LowBuilt for the moment someone asks what is happening at the destination before a trip, event, or visit.
This is the fastest statewide destination page for California. It gives the broad public-health picture first, then routes travelers into the disease-specific or city-specific pages they are most likely to need.
- Flu: 2.7% of outpatient visits in California.
- RSV: 0.0 per 100K in the latest state hospitalization data.
- Measles: 24 measles cases in 2026; kindergarten MMR coverage is 96.1%.
Best Pages to Open Before a Trip to California
Start here
California overview
Get the broad statewide answer first, then drill into specific diseases.
Flu
Open the flu page
Best for the most common seasonal travel question in one state.
Measles
Open the measles page
Best for current case counts and vaccination-context questions.
Search again
Check a different destination
Use the main travel tool when you need another state or city.
Popular destinations in California
Open a city-specific travel page when you know the destination already.
Los Angeles
California
Destination-first routing into the city snapshot plus flu and measles answers.
San Diego
California
Destination-first routing into the city snapshot plus flu and measles answers.
San Jose
California
Destination-first routing into the city snapshot plus flu and measles answers.
San Francisco
California
Destination-first routing into the city snapshot plus flu and measles answers.
Fresno
California
Destination-first routing into the city snapshot plus flu and measles answers.
Sacramento
California
Destination-first routing into the city snapshot plus flu and measles answers.
Travel questions
Questions worth opening before a trip to California
Use these when a traveler needs one more layer of guidance before you send them into California's overview, disease pages, or destination pages.
Travel Question
What Should I Check Before Traveling?
The shortest useful travel workflow, plus the fastest route into destination, flu, and measles pages.
Travel Question
Is Measles a Travel Risk Right Now?
A travel-focused measles page that tells users when measles belongs in the pre-trip checklist and where to click next.
Sharing Question
What Page Should I Send Someone Who Asks What’s Going Around?
A utility page for sharing the right LHS link the first time instead of sending a random dashboard or article.
FAQ
Travel to California FAQ
What should I check before traveling to California?
Start with this statewide travel page, then open the statewide flu page and measles page if those are relevant to your trip. California currently has 24 measles cases in 2026 and 2.7% of outpatient visits for flu-like illness.
Is this enough to decide whether I should still travel to California?
No. This page is a public-health orientation tool, not travel or medical advice. It helps you identify the signals worth checking before a trip and gives you links to the most relevant state and city pages.
Can I check specific cities in California?
Yes. Use the destination links on this page to open city travel pages and city-specific flu or measles pages for the major cities we cover.
Source and context
How this page is built
Updated
Jul 17, 2026
Coverage
California statewide surveillance plus destination routing into city and disease pages
Best For
Choosing which California pages to open before a trip
This page is built to answer one traveler question fast: where should I start for California? It gives the broad read first, then routes into the destination pages that are most likely to matter.
National context
One national update worth sending before a trip
What's Going Around Right Now? July 2026 Weekly Update
If the trip decision needs more national context before you dive into California, send the weekly roundup first.
Flu
2.7% in California
RSV
0.0 per 100K
COVID-19
0.4 per 100K
Measles
24 measles cases in 2026