Vaccines alone are not enough.
Study of #COVID19 vaccine effectiveness (VE) against hospitalization in adults over 60 in 2024/25:
“VE was 42% 14-59 days post-vaccination, 32% at 60-119 days, and 36% at 120-179 days, and no effect thereafter. “
Less than 50% effective in the first two months. No effect after 179 days. (I have seen studies suggesting vaccination may provide SOME protection against Long COVID.)