About the Authors

Grace Yap, Kwoon-Yong Pok, Yee-Ling Lai, Hapuarachchige-Chanditha Hapuarachchi, Li-Kiang Tan, Lee-Ching Ng
Environmental Health Institute, National Environment Agency, Singapore, Singapore

Angela Chow, Yee-Sin Leo
Communicable Disease Centre, Tan Tock Seng Hospital, Singapore, Singapore

Corresponding Author


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.