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US measles cases in 2026 more than double the 2025 total, CDC data shows

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Coverage spectrum

Covered by 3 outlets, mostly left-leaning (67%).

3 articles in total. The spectrum counts each outlet once and leaves opinion out. How we measure bias

Clipboard with printed measles information sheet showing symptoms and disease facts, shallow focus.
Image via The HillHow images are chosenReport this image

The CDC's latest tally, as reported by The Guardian, is 4,588 measles cases in the United States in 2026 as of Friday. The Hill and NPR also report that the total has more than doubled from 2025. Federal health authorities reported 178 additional cases in one week and outbreaks in at least 43 places. Pennsylvania is the worst-hit state, with at least 1,338 cases confirmed in 44 counties, according to the Pennsylvania Department of Health. According to The Guardian, South Carolina and Utah each have more than 500 cases. The Guardian also reports that experts criticize the CDC for lack of transparency, and that Health Secretary Robert F Kennedy Jr is taking steps to change US vaccine infrastructure.

Headline and summary written by Mantle’s AI from the coverage below, under published rules. How this works

What happened

Key points

Each point shows who reports it, from Far Left to Far Right.

  1. US measles cases in 2026 have more than doubled the 2025 total, according to the CDC.

    Reported byLeft2Center1See the outletsHide the outlets
    Left
    The Guardian, NPR
    Center
    The Hill

  2. The CDC reported 4,588 measles cases in 2026 as of Friday.

    One outletThe Guardian· Left

  3. Federal health authorities reported 178 additional measles cases in the US in one week.

    One outletThe Guardian· Left

  4. The illness has spread across at least 43 outbreaks, according to federal health authorities.

    One outletThe Guardian· Left

  5. Pennsylvania has at least 1,338 measles cases confirmed in 44 counties, according to the Pennsylvania Department of Health.

    One side only: the leftReported byLeft2See the outletsHide the outlets
    Left
    The Guardian, NPR

  6. South Carolina and Utah each report more than 500 measles cases.

    One outletThe Guardian· Left

How each side tells it

Compare views

All three outlets report that US measles cases in 2026 have more than doubled 2025's total, with the CDC as the source. The Hill presents it as an official update, while the Guardian and NPR put the outbreak's spread and Pennsylvania's count up front.

  • the left

    2 outlets

    Both left outlets lead with case counts, NPR stressing the doubling over last year and the spread of the outbreak, the Guardian crediting federal health authorities for the new figures.

    U.S. measles cases more than double what they were last year as outbreak spreads
    NPRLeftAll left-leaning headlines

  • the center

    1 outlet

    The Hill's headline presents the event as an official milestone, saying the US has officially doubled last year's measles numbers, with the CDC as the source.

    US officially doubles last year's measles numbers
    The HillCenterAll center headlines

  • the right

    No coverage yet

    No right-leaning outlet that Mantle follows has covered this story yet. That absence is part of the picture.

The words they chose

Language to notice

Words that carry a judgement beyond the facts. Tap a highlighted word anywhere on the page to see why.

  • Left2

    experts criticizefurther upend US vaccine infrastructure

  • Center0

    No loaded words in its own voice.

  • Right

    Has not covered this story.

In the outlets’ own words

  • Vague attribution

    experts criticizeMore neutral: experts named in the story criticize

    The criticism is attributed to unnamed experts, so a reader cannot tell who is making the charge.

    …data reported by the Centers for Disease Control and Prevention (CDC) comes as experts criticize the agency for lack of transparency, and as health secretary Robert F Kennedy Jr…

    Used byThe Guardian (Left)

  • Loaded verb

    further upend US vaccine infrastructureMore neutral: further change US vaccine infrastructure

    Upend implies a dramatic and damaging overturning, which goes beyond the reported steps.

    …and as health secretary Robert F Kennedy Jr takes steps to further upend US vaccine infrastructure.

    Used byThe Guardian (Left)

See the full language guide

See for yourself

Side by side

What each side leads with and what it leaves out. Open a side to read its headlines.

From the left

2 outlets

Leads with

  • case totals and doubling over 2025
  • Pennsylvania outbreak
  • federal health authorities and CDC data
See the 2 headlines from the leftHide the headlines
  • NPRLeft

    U.S. measles cases more than double what they were last year as outbreak spreads

    Pennsylvania is the worst hit state, with at least 1,338 cases of measles confirmed in 44 counties so far this year, according to the Pennsylvania Department of Health.

    Read at NPR (opens in a new tab)
  • The GuardianLeft

    Additional 178 cases of measles reported by US health authorities amid outbreak

    Centers for Disease Control and Prevention reported 4,588 cases across the country, more than double the tally in 2025 Federal health authorities reported an additional 178 cases of measles in the US this week, as the vaccine-preventable illness continues to sicken people across …

    Read at The Guardian (opens in a new tab)

From the center

1 outlet

Leads with

  • official CDC update
  • doubling of 2025 total
  • worst year for measles

Leaves out

  • Pennsylvania as the worst-hit state
  • criticism of CDC transparency

Reported by other sides, not found in this side’s coverage.

See the headline from the centerHide the headlines
  • The HillCenter

    US officially doubles last year's measles numbers

    Click in for more news from The Hill {beacon} Healthcare Healthcare The Big Story US officially doubles last year's measles numbers The U.S. has officially doubled the number of measles cases it saw in 2025 according to the most up-to-date information from the Centers for …

    Read at The Hill (opens in a new tab)

From the right

0 outlets

No right-leaning outlet that Mantle follows has covered this story yet. That absence is part of the picture.

Articles you open from here build My Mix, a private picture of how your reading spreads across the spectrum, kept on this device. What is My Mix?

The left is Far Left and Left together. The right is Right and Far Right together. Every outlet keeps its own five-point rating.

Who reported it when

How the coverage built up

  • Left

    13 hr 15 min later

    Its first report, Oct 24, 8:00 AM EDT

  • Center

    First to report

    The Hill, Oct 23, 6:45 PM EDT

  • Right

    No report yet

    From the outlets Mantle follows

See the order the outlets reported inHide the order
  1. The HillCenterOct 23, 6:45 PM EDT
  2. The GuardianLeftOct 24, 8:00 AM EDT
  3. NPRLeftOct 25, 4:35 PM EDT

Times are the ones the outlets published in their own feeds, in Eastern time. Opinion is left out.

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