1 Department of Microbiology, Amrita Institute of Medical Sciences & Research Centre, Amrita Vishwa Vidyapeetham, Ponekara, Kerala India. Electronic address: vanilkumar@aims.amrita.edu.
2 Department of Pediatric Surgery, Amrita Institute of Medical Sciences & Research Centre, Amrita Vishwa Vidyapeetham, Ponekara, Kerala India.
3 Department of Radiology, Amrita Institute of Medical Sciences & Research Centre, Amrita Vishwa Vidyapeetham, Ponekara, Kerala India.
4 Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Ponekara, Kerala, India.
5 Department of Microbiology, Amrita Institute of Medical Sciences & Research Centre, Amrita Vishwa Vidyapeetham, Ponekara, Kerala India.