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As a global leader in the protection of public health, CSL Seqirus announced today that it is working to change the formulation of its influenza vaccine portfolio.
On February 8, 2024, Seqirus confirmed the B/Yamagata influenza virus strain will be removed from its influenza vaccines distributed in the United States, preferably in time for the 2024-2025 flu season. 
The Centers for Disease Control and Prevention reported that over 157 million influenza vaccines were already distributed during the 2023-2024 flu season. 

According to the U.S. government, the current respiratory season is ending with less impact on hospitalization than last year.
The combined weekly hospitalization rate for COVID-19 and influenza from the National Healthcare Safety Network during the week of December 30, 2023, was 87.5% of 2022's peak (16.8 vs 19.2 admissions per 100,000).

A recently published review aimed to assess the necessity of a booster vaccination based on the long-term immunogenicity of primary yellow fever vaccination.
Overall, these researchers found that most primary vaccine recipients maintain neutralizing antibodies above protective thresholds ten or more years post-vaccination.
In healthy adults in non-endemic settings, who were primarily travelers, this systematic review and meta-analysis observed high rates of seroprotection 10–60 years post-vaccination (overall seroprotection rate 94%).

When New York Senate Bill 2994A was passed in June 2019, nonmedical vaccine exemptions for attending school were eliminated. This action was related to a previous measles outbreak in unvaccinated residents.
An analysis of the 2018-2019 measles outbreak in New York City estimated that around a quarter of young children in an affected community were susceptible to the measles virus, likely due to under-vaccination.

An innovative therapy that addresses the need for a safe, effective therapeutic option for bacille Calmette-Guérin (BCG) vaccine-unresponsive non-muscle invasive bladder cancer (NMIBC) patients posted additional good news today.