1. 1Center for Nanosciences and Molecular medicine, Amrita Vishwa Vidyapeetham, Ponekkara, Kochi, Kerala, India;
2. 2Department of Microbiology, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Ponekkara, Kochi, Kerala, India;
3. 3Department of Dermatology, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Ponekkara, Kochi, Kerala, India;
4. 4Department of Respiratory Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Ponekkara, Kochi, Kerala, India