Durability of protection of ancestral-strain COVID-19 third- and fourth-dose vaccine boosters against Omicron XBB/XBB.1 and JN.1 symptomatic infection, hospitalisation and mortality in Indonesian adults (2023-2024): a test-negative case-control study
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Background: SARS-CoV-2 ancestral-strain vaccines have effectively reduced SARS-CoV-2-related severe illness and death worldwide. However, waning immunity over time has warranted revaccination to boost immunity. Indonesia, like mo... ...
