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Omicron Weakens Immunity: Only 5% Protection After Year

2/7/2025

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Summary

Story summary

A groundbreaking study from Qatar uncovers a troubling truth: the Omicron variant of SARS-CoV-2 drastically weakens long-term immunity against reinfection. Unlike earlier variants that provided around 80% protection for over a year, Omicron's shield crumbles to a mere 5% within the same timeframe. To combat this decline, regular vaccine updates are crucial for sustaining our defenses.

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Story summary

A groundbreaking study from Qatar uncovers a troubling truth: the Omicron variant of SARS-CoV-2 drastically weakens long-term immunity against reinfection. Unlike earlier variants that provided around 80% protection for over a year, Omicron's shield crumbles to a mere 5% within the same timeframe. To combat this decline, regular vaccine updates are crucial for sustaining our defenses.