Ren Z, Nishimura M, Tjan LH, Furukawa K, et al. Large-scale serosurveillance of COVID-19 in Japan: Acquisition of neutralizing
antibodies for Delta but not for Omicron and requirement of booster vaccination
to overcome the Omicron's outbreak. PLoS One 2022;17:e0266270.
PMID: 35381036