Acknowledgments
This work was supported by The National Research Council of Thailand, The Research Chair Grant from NSTDA (P-15-50004), The Center of Excellence in Clinical Virology of Chulalongkorn University and Hospital (GCE 59-00930-005). Support for Nungruthai Suntronwong was provided by the Royal Golden Jubilee Ph.D. Program Scholarship (PHD/0084/2558). Support for Ilada Thongpan was provided by the Second Century Fund of Chulalongkorn University. Support for Fajar Budi Lestari was provided by Beasiswa Pendidikan Pascasarjana Luar Negeri Scholarship from the Ministry of Education and Culture of the Indonesian Government.
Disclosure statement
No potential conflict of interest was reported by the authors.