1. Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, Tamil Nadu, India
2. Department of Microbiology, Karpaga Vinayaga Institute of Medical Sciences and Research Centre, Mathuranthagam, Tamil Nadu, India
3. Department of Microbiology, Panimalar Medical College Hospital and Research Institute, Chennai, Tamil Nadu, India