Sunil Sethi*, Abhishek Mewara, Sunil Kumar Dhatwalia, Harpal Singh, Rakesh Yadav, Khushwinder Singh, Dheeraj Gupta, Ajay Wanchu and Meera Sharma
* Corresponding author: Sunil Sethi sunilsethi10@hotmail.com
BMC Infectious Diseases 2013, 13:137 doi:10.1186/1471-2334-13-137