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Yellow Fever Colombia 2026 Outbreak: 76 Dead Since 2024 with Case Fatality Rate Exceeding 70 Percent as CDC Issues Active Level 2 Travel Notice
Yellow fever in Colombia has killed 76 people since 2024, with case fatality rates exceeding 40–70% in some periods. 35 cases and 18 deaths in 2026 alone. Venezuela also reports an active outbreak. CDC Level 2 travel notice covers Colombia and South America. Here is what travelers need to know.
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CRISPR Gene Editing Achieves a Functional Cure for Sickle Cell Disease in 96 Percent of Patients — RUBY Trial Results in the New England Journal of Medicine Are Historic
The RUBY Trial (NEJM, April 2026): CRISPR-Cas12a gene editing therapy reni-cel (renizgamglogene autogedtemcel) achieved a functional cure in 27 of 28 (96%) severe sickle cell disease patients, with no painful crises for up to two years after treatment. Led by Dr. Rabi Hanna at Cleveland Clinic.
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New York Vacation Rental Hot Tub Linked to Legionnaires' Disease in CDC MMWR Report as Owner Refuses Closure
CDC MMWR (June 11, 2026): A hot tub at a private vacation rental in western New York caused a Legionnaires' disease outbreak in 2024–2025. Whole-genome sequencing confirmed the link. The rental owner initially refused to comply with CDC guidance. Here is what summer vacationers and Airbnb renters need to know.
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