The new and improved COVID-19 boosters have added omicron BA.4 and BA.5 spike protein components to the current vaccine make-up, which helps restore protection that has waned since previous vaccination by targeting variants that are more transmissible and immune-evading. In this sense, the new boosters provide extra protection in that they have “caught up” to the current forms the virus has taken, specifically omicron. Like the original monovalent COVID-19 vaccines, the updated bivalent vaccine boosters include an mRNA component of the original strain along with the newly added components to strengthen immune response against the virus on a wider scale.