Epidemiologist explains how cyclospora test on lettuce sample might have resulted in false positive

21-07-2026 02:55 via youtube.com

Epidemiologist explains how cyclospora test on lettuce sample might have resulted in false positive

Epidemiologist explains how cyclospora test on lettuce sample might have resulted in false positive

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PBS News Hour full episode, July 21, 2026

PBS News Hour full episode, July 21, 2026

Anna Deavere Smith brings her family's history to the stage in 'Basil Biggs'

Anna Deavere Smith brings her family's history to the stage in 'Basil Biggs'

Epstein survivor criticizes Blanche, calls meeting 'a performative move'

Epstein survivor criticizes Blanche, calls meeting 'a performative move'

Janesville, once a symbol of the Great Recession, becomes AI data center battleground

Janesville, once a symbol of the Great Recession, becomes AI data center battleground

Trump raises tensions with Canada by announcing new 50% tariffs

Trump raises tensions with Canada by announcing new 50% tariffs

Gillibrand presses Hegseth on Iran war contradictions

Gillibrand presses Hegseth on Iran war contradictions

Southern Lebanese skeptical of Israel agreement as violence continues

Southern Lebanese skeptical of Israel agreement as violence continues

Kennedy presses top military officials for 'straight talk'

Kennedy presses top military officials for 'straight talk'

WATCH: 'You, sir, are the failure,' Sen. Peters tells Hegseth over lack of U.S. strategy in Iran war

WATCH: 'You, sir, are the failure,' Sen. Peters tells Hegseth over lack of U.S. strategy in Iran war

WATCH: Hegseth says not getting supplemental funding would strain troop ‘training and readiness’

WATCH: Hegseth says not getting supplemental funding would strain troop ‘training and readiness’

News Wrap: Gulf Coast prepares for Tropical Storm Bertha

News Wrap: Gulf Coast prepares for Tropical Storm Bertha

Hegseth says Iran war has cost $37.5B so far and Pentagon needs $67B to restock arms

Hegseth says Iran war has cost $37.5B so far and Pentagon needs $67B to restock arms

WATCH: Sen. Ossoff pushes Secretary Hegseth on past comments about victory in U.S. war with Iran

WATCH: Sen. Ossoff pushes Secretary Hegseth on past comments about victory in U.S. war with Iran

WATCH: Sen. Peters questions Hegseth in funding hearing as Iran war reignites

WATCH: Sen. Peters questions Hegseth in funding hearing as Iran war reignites