#vaccine-effectiveness

#vaccine-effectiveness

Flu vaccine effectiveness declined to 34.5% in South America this year, suggesting lower protection for the U.S. during winter.

The benefits of Covid vaccines outweigh the downsides despite some reported serious side effects.

Two new COVID-19 subvariants, FLiRT (KP.2 and KP.1.1), are 20% more transmissible than the previous JN.1 variant. FLiRT dominates infections, causing a possible summer uptick.

The JN.1 variant is responsible for nearly all new COVID-19 cases in the United States, accounting for 93.1% of infections.

Key indicators are showing signs of decreasing COVID-19 activity nationally.

AstraZeneca has withdrawn its COVID-19 vaccine Vaxzevria globally due to declining demand and the availability of other updated vaccines.

Older Americans advised to get a spring Covid vaccine dose

Second dose for older adults beneficial

Older adults should receive an additional COVID-19 vaccine dose for added protection.

Data supports the effectiveness of the additional vaccine dose in reducing hospitalizations among seniors.

The latest COVID-19 vaccine is about 54% effective at protecting people from symptoms of COVID-19, according to a report from the CDC.

The vaccine is 49% effective at protecting against symptoms from the JN.1 variant, despite being designed to target a different variant.