About the Authors

Grace Yap

Affiliation Environmental Health Institute, National Environment Agency, Singapore, Singapore

Kwoon-Yong Pok

Affiliation Environmental Health Institute, National Environment Agency, Singapore, Singapore

Yee-Ling Lai

Affiliation Environmental Health Institute, National Environment Agency, Singapore, Singapore

Hapuarachchige-Chanditha Hapuarachchi

Affiliation Environmental Health Institute, National Environment Agency, Singapore, Singapore

Angela Chow

Affiliation Communicable Disease Centre, Tan Tock Seng Hospital, Singapore, Singapore

Yee-Sin Leo

Affiliation Communicable Disease Centre, Tan Tock Seng Hospital, Singapore, Singapore

Li-Kiang Tan

Affiliation Environmental Health Institute, National Environment Agency, Singapore, Singapore

Lee-Ching Ng

ng_lee_ching@nea.gov.sg

Affiliation Environmental Health Institute, National Environment Agency, Singapore, Singapore

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: GY LCN. Performed the experiments: GY KYP YLL. Analyzed the data: GY YLL HCH LCN. Contributed reagents/materials/analysis tools: HCH LKT. Wrote the paper: GY. Conceptualized and coordinated the study: LCN. Prepared the manuscript: LCN. Coordinated sample collection from the hospital: AC YSL. Coordinated sample collection and diagnostics: LKT. Isolated the viruses: LKT.