This study was funded by grants from the Singapore National Medical Research Council (COVID19RF-001, COVID19RF-008). All other authors declare no competing interests. Competing Interest StatementīEY reports personal fees from Roche and Sanofi, outside the submitted work. Vaccination remains a key strategy for control of COVID-19 pandemic. Vaccination is associated with faster decline in viral RNA load and a robust serological response.
Conclusion The mRNA vaccines are highly effective at preventing symptomatic and severe COVID-19 associated with B.1.617.2 infection.
