Flu cases are rising with a strain that makes older people sicker
01.01.2026
Cases of influenza in the United States are rising, driven by a new strain that public health officials worry current vaccines may not protect against as effectively. Health officials and researchers say that although the flu season has not reached its peak, the spike in cases is not historically unusual - and they stress vaccines probably still offer protection against the worst effects of the strain.Subscribe to The Post Most newsletter for the most important and interesting stories from The W