Research on vaccines against Staphylococcus aureus is ongoing, with some studies suggesting that certain vaccines may be effective against the infection, even in cases of previous exposure. However, other research indicates that the immune system's response to the vaccine can be hindered by certain factors. Various approaches, including multivalent mRNA-LNP cocktails and multi-epitope vaccines, are being explored to develop effective vaccines against Staphylococcus aureus.