what did you expect from the vaccines

1 minute ago 1
Nature

Vaccines are expected primarily to help prevent infectious diseases by stimulating the immune system to recognize and fight specific pathogens effectively. For the COVID-19 vaccines in 2025, expectations include protection against the newest variants of the virus, especially amid evolving strains like the XFG variant (an Omicron descendant), which is currently dominant in many regions. Vaccines are tailored periodically to match circulating variants to maintain efficacy in preventing infection, symptomatic disease, and severe outcomes. This approach similarly applies to the annual flu vaccines, which are updated yearly based on global surveillance of dominant flu strains. In general, expectations from vaccines are to reduce transmission, severity of illness, hospitalizations, and deaths, while also contributing to broader public health efforts to control outbreaks and pandemics. However, vaccine effectiveness may vary by variant, duration of protection, and individual factors, so ongoing monitoring and updates are necessary to optimize outcomes. In a broader sense, society expects vaccines to be safe, widely accessible, and effective in protecting both individuals and communities from infectious threats.