government public service

healthcare medical

government

news/blog

English

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_cdc_vnum

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Akamai-Request-ID

_cdc_sid

akamai_visit_id

The domain name 'www.cdc.gov' uses the United States government-restricted top-level domain (.gov) with subdomain 'www'. The core label 'cdc' covers 3 characters containing zero vowels alongside 3 consonants. Splitting it apart reveals 1 word: cdc. No strong language cues emerged from the frequency lists.

html/b9/85/b9857258-aa40-491f-8f37-937525a8f894_fallback.html.gz

Influenza (Flu) | Influenza (Flu) | CDC

query

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Flu Complications and People at Higher Risk

Weekly U.S. Influenza Surveillance Report

View information about how this image was edited or created.

Similarities and Differences between Flu and COVID-19

Influenza Activity in the United States during the 2024–25 Season and Composition of the 2025–26 Inf

Influenza A Viruses May Infect GI Tract and Cause Digestive Symptoms

Prevention and Control of Seasonal Influenza with Vaccines: Recommendations of the Advisory Committe

Global Summary of Recent Human Cases of H5N1 Bird Flu

CDC A(H5N1) Bird Flu Response Update March 19, 2025

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viewport

mobile-web-app-capable

apple-mobile-web-app-capable

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theme-color

Learn about flu, including symptoms, prevention methods, and treatment options.

description

https://www.cdc.gov/flu/images/virus/Flu19_trans_RNPs-small.png?_=39900

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twitter:title

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robots

NATIONAL CENTER FOR IMMUNIZATION AND RESPIRATORY DISEASES

DC.date

cdc:last_published

HSTS header missing - vulnerable to protocol downgrade attacks

CSP header missing - vulnerable to XSS attacks

child-src 'none';object-src 'none';require-trusted-types-for 'script';script-src chrome://resources 'self';trusted-types;worker-src blob: 'self';frame-ancestors 'none';

child-src https:  chrome-untrusted://new-tab-page/ chrome-untrusted://ntp-microsoft-auth/;connect-src chrome://resources chrome://theme 'self';default-src 'self';font-src chrome://resources 'self';img-src chrome://resources chrome://theme chrome://image chrome://favicon2 chrome://app-icon chrome://extension-icon chrome://fileicon blob: data: 'self';object-src 'none';require-trusted-types-for 'script';script-src chrome://resources chrome://webui-test 'self';style-src chrome://resources chrome://theme 'self' 'unsafe-inline';trusted-types parse-html-subset sanitize-inner-html static-types webui-test-script webui-test-html polymer-html-literal polymer-template-event-attribute-policy lit-html-desktop;frame-ancestors 'none';

base-uri 'none';child-src https:;form-action https://ogs.google.com https://*.corp.google.com;object-src 'none';script-src 'self' 'unsafe-inline' https:;frame-ancestors chrome://new-tab-page/

child-src 'none';object-src 'none';require-trusted-types-for 'script';script-src chrome://resources 'self';trusted-types;frame-ancestors 'none';

cdc.gov

var CDC_POST={"id":"433_136787","type":"cdc_dfe","context":"433-3","lang":"en","audience":"gen","tax":{"cdc_topics":["5b44a0c6-ceec-4155-a74c-d40d40e0bec1","729f8e0c-0084-4ca3-b79a-9731d34f6ca4"],"cdc_categories":["a9a5dc06-779f-4131-88b7-fa68f806d201"],"cdc_audiences":["8de1299b-beee-47ff-a33e-3ab1d2f97e0c"]}};

s.pageName=document.title;
s.channel="Seasonal Flu";
siteCatalyst.setAzEntry("Seasonal Flu");
siteCatalyst.setLevel1("CDC Flu"); 
siteCatalyst.setLevel2("OD"); 
siteCatalyst.setLevel3("Seasonal Flu");

if ( 'en-us' === document.querySelector('html').getAttribute('lang') ) {
 $('main .cdc-dfe-body:first').after(`
 
 `);
}

Requests	IP Address	Location	AS Autonomous System
75	104.102.35.45	Frankfurt am Main, Hesse, Germany	AS16625AKAMAI-AS
8	216.239.34.36	United States	AS15169GOOGLE
8	2a02:26f0:3500:2aa::2461	Frankfurt am Main, Hesse, Germany	AS20940Akamai International B.V.
8	2a02:26f0:3500:296::2461	Frankfurt am Main, Hesse, Germany	AS20940Akamai International B.V.
8	2001:4860:4802:34::36	United States	AS15169GOOGLE
8	2001:4860:4802:32::36	United States	AS15169GOOGLE
8	2a00:1450:4001:81c::2008	Frankfurt am Main, Hesse, Germany	AS15169GOOGLE
1	216.239.32.36	United States	AS15169GOOGLE
1	172.217.18.8	United States	AS15169GOOGLE
77	9	-	-

Security Scan Report: www.cdc.gov

Summary

AI Security Verdict

Safe Website

Safety Factors

Details

Screenshot

Page Load Overview

Language Analysis

Primary Language

Detection Details

Website Classification

Primary Category

All Detected Categories

Detected Features

Domain & IP Information

Detected Technologies2

Content Similarity HashesFor malware variant detection

TLSH (Trend Micro Locality Sensitive Hash)

ssdeep (Context Triggered Piecewise Hashing)

sdhash (Similarity Digest Hashing)

Image Hashes

Perceptual Hashes

Other Hashes

Scan History