Surge alerts
Know when respiratory illness starts climbing near you
FluTrack's free surge alert watches the CDC's weekly surveillance data for your state and emails you when flu, RSV or COVID-19 activity turns upward — at most about once a week, no spam, and only when the trend actually changes.
Free · one email a week at most
Get a surge alert for your state
We'll email you when CDC data shows respiratory activity climbing where you live — so a rise never catches you off guard. No spam, unsubscribe anytime.
By subscribing you agree to our Privacy Policy. FluTrack is an independent utility and is not affiliated with the CDC. For general information only — not medical advice.
How it works
Set it once — then we watch for you
We read the CDC every week so you don't have to. No account, no login.
Pick your state
Tell us which state to watch and where to send the email. There is nothing to install and no account to create.
We watch the CDC signals
Each week we read the CDC's public-domain surveillance — emergency-department visits, lab test positivity and wastewater viral activity — and recompute your state's combined threat level. See the method →
You get a heads-up when the trend turns up
When the data shows activity climbing, we send a short, plain-English summary of what changed. When it is flat or falling, your inbox stays quiet.
A heads-up, not an alarm
A surge alert is a directional signal, not a real-time warning. It reflects the same public CDC surveillance FluTrack shows on every state page, so it tells you which way respiratory activity is trending in your state — not that anything is happening at this precise moment. It is not an emergency notification, and it is not a medical alert.
Surveillance data is reported with an inherent lag of roughly one to two weeks. FluTrack shows directional trends, not a real-time case count.
Not medical advice
The information on FluTrack is provided for general informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition.
Your email, and nothing more
Signing up asks for exactly two things — your email address and the state you want to watch — and we use them for exactly one purpose: sending your surge alerts. We do not sell or share your address, and every email carries a one-click unsubscribe, so you can leave the list at any time. The full detail lives in our Privacy Policy.
Independent, not official
Surge alerts are built entirely on the CDC's open, public-domain data, but FluTrack is an independent project with no affiliation, funding relationship, or special access.
No CDC affiliation
FluTrack is an independent project and is not affiliated with, endorsed by, or sponsored by the Centers for Disease Control and Prevention (CDC) or any government agency.
Common questions
How often will I hear from you?
At most about once a week, and only when CDC data shows your state's respiratory trend turning upward. When activity is flat or easing, we stay quiet — there is no weekly newsletter and no digest to wade through.
Is a surge alert an emergency or a medical alert?
No. A surge alert is a directional heads-up derived from CDC surveillance data, which is reported with a lag of roughly one to two weeks. It describes what the trend is doing — not what you should do about it — and it is not a substitute for advice from a qualified health provider.
Will you sell or share my email address?
No. We ask only for your email and the state you want to watch, we do not sell or share your address, and every alert includes a one-click unsubscribe. See our Privacy Policy for the full detail.
Is it really free?
Yes. FluTrack is a free, ad-supported utility, and the surge alert is part of that — no account, no payment, no catch.