There is an updated Cleveland Clinic study dated August 2024 to further support the 2023 study by the same author.
Effectiveness of the 2023-2024 Formulation of the COVID-19 Messenger RNA Vaccine
Risk of COVID-19 was lower among those previously infected with an XBB or more recent lineage and increased with the number of vaccine doses previously received.
There is an updated Cleveland Clinic study dated August 2024 to further support the 2023 study by the same author.
Effectiveness of the 2023-2024 Formulation of the COVID-19 Messenger RNA Vaccine
Risk of COVID-19 was lower among those previously infected with an XBB or more recent lineage and increased with the number of vaccine doses previously received.
There is an updated Cleveland Clinic study dated August 2024 to further support the 2023 study by the same author.
Effectiveness of the 2023-2024 Formulation of the COVID-19 Messenger RNA Vaccine
Risk of COVID-19 was lower among those previously infected with an XBB or more recent lineage and increased with the number of vaccine doses previously received.
https://pubmed.ncbi.nlm.nih.gov/38465901/