Infectious Information 6/27/2026
Key Points:
- A JAMA Network Open study found that people with multiple sclerosis (MS) can safely receive live attenuated MMR and varicella vaccines without increased risk of symptom relapse, addressing vaccine hesitancy in this group.
- Ebola cases surged from nearly 900 on May 18 to over 1,000 by May 22, with deaths surpassing 300 by May 26, highlighting ongoing outbreak severity.
- From 2000 to 2022, pandemic diseases, dengue, and cholera accounted for the highest global disease burden, underscoring persistent public health challenges.
- Flu outbreaks among unvaccinated soldiers led to the reinstatement of mandatory flu shots in the Army, Navy, and Air Force after exceptions to vaccine requirements backfired.
- Other health concerns include a growing Listeria outbreak linked to soft cheese, rising screwworm cases in the U.S. now totaling 25, and ongoing risks from Legionella and avian influenza strains like H5N1 and H9.