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‘Explosive’ diarrhea-causing parasite surging in Midwest, CDC says no risk in Bay Area

Michigan is experiencing its largest outbreak of a parasitic infection, called cyclosporiasis, that causes severe diarrhea.

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NEEDS REVIEW

As of July 9, 2026 at 2:14 AM, this is how Optics News reads the wording differences in this story.

What happened ‘Explosive’ diarrhea-causing parasite surging in Midwest, CDC says no risk in Bay Area.
The headline split The left frames it as "What to know about "explosive" diarrhea-causing parasite reported in several states". The center frames it as "‘Explosive’ diarrhea-causing parasite surging in Midwest, CDC says no risk in Bay Area".
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Same-event confidenceDeveloping

Article formats differ across sources, so wording may reflect format as much as framing.

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WHAT EACH SIDE EMPHASIZED

Left / center-leftWhat to know about "explosive" diarrhea-causing parasite reported in several states

CBS News · Center-left · Analysis

Center‘Explosive’ diarrhea-causing parasite surging in Midwest, CDC says no risk in Bay Area

KRON4 (Nexstar, San Francisco) · Center · News report

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Article formats differ across these sources, so wording may reflect format as well as framing.

SEE THE HEADLINES

Center-leftHigh
CBS NewsAnalysis · Jul 9, 2:14 AM

What to know about "explosive" diarrhea-causing parasite reported in several states

whatknowaboutreportedseveral

Michigan is experiencing its largest outbreak of a parasitic infection, called cyclosporiasis, that causes severe diarrhea.

Open source
CenterHigh
KRON4 (Nexstar, San Francisco)News report · Jul 9, 1:48 AM

‘Explosive’ diarrhea-causing parasite surging in Midwest, CDC says no risk in Bay Area

surgingmidwest

(KRON) -- A parasite that is causing painful symptoms to the bowel is surging in Michigan. As of Wednesday, there have been nearly a thousand cases reported across the Midwestern state. The...

Open source
DetailsScore hidden · 2 sources · 2 bias buckets
Score hidden until the match is cleanerLow confidence2 sources · 2 bias bucketsDeveloping · related angleFormats: Analysis, News report

SOURCE MAP CHANGES

Jul 9, 1:48 AM: KRON4 (Nexstar, San Francisco) joined the source map.

Jul 9, 2:14 AM: CBS News joined the source map.

Now: score hidden until the source match is cleaner. Story health is developing · related angle.

Flagged: article formats differ, so wording may reflect format as well as framing.