Index/Organizations/Ivy

Ivy

Female given name

Fact-Checks

7 results
Dec 11, 2025
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What are real-world effectiveness estimates for 2025 flu vaccines by age group and comorbidity status?

Interim U.S. estimates for the 2024–25 influenza season show vaccination reduced medically attended flu and hospitalizations across age groups, with CDC reporting that vaccination was effective in chi...

Nov 24, 2025
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What side effects are most common after COVID-19 vaccines in adults over 65 and how long do they last?

Older adults (65+) are urged to get updated COVID-19 vaccines because they remain most at risk for severe outcomes; vaccine effectiveness against hospitalization in immunocompetent adults ≥65 was abou...

Nov 25, 2025
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What are CDC estimates of COVID-19 death rates by vaccination status and age group?

CDC reporting and analyses show COVID-19 vaccines reduce risk of severe outcomes — including hospitalization and death — with the most robust measured vaccine effectiveness (VE) against hospitalizatio...

Dec 20, 2025

How effective were 2024–2025 influenza vaccines at preventing hospitalization during H3N2-dominant seasons?

The 2024–2025 seasonal influenza vaccines provided moderate protection against hospitalization during H3N2‑dominant periods, with interim estimates clustered in the roughly 35%–55% range depending on ...

Jan 7, 2026

When will the CDC publish U.S.-specific vaccine effectiveness estimates for the 2025–26 season?

The Centers for Disease Control and Prevention (CDC) does not publish a fixed calendar date for U.S.-specific influenza vaccine effectiveness (VE) estimates for a given season; instead, CDC’s four U.S...

Dec 12, 2025

How did the Cleveland Clinic monitor, classify, and adjudicate adverse events after vaccination?

Cleveland Clinic reports that it tracks vaccine safety through clinical-trial safety monitoring and routine clinical care guidance on its public pages; its patient-facing COVID vaccine guidance notes ...

Oct 29, 2025

What is the current Covid vaccine efficacy rate against the Omicron variant?

Current COVID-19 vaccines targeted at recent Omicron sublineages provide , with point estimates varying by study and population: recent U.S. surveillance found roughly , while regional studies report ...