Ms. Amena Mahmood, a student of MS in Biotechnology Programme defended her research paper entitled ‘Nationwide surveillance on enteric fever to estimate the disease burden in Bangladesh’. The work was carried out at ICDDR,B under the joint supervision of Prof. Naiyyum Choudhury and Prof. Firdausi Qadri, ICDDR,B. The study was carried out from May 2014 till December 2015 to see the percentage of positive results coming out of blood tests of typhoid and para-typhoid in seven divisions of Bangladesh. The Viva Board chaired by Prof. A. A. Ziauddin Ahmad was attended by Professor Naiyyum Choudhury, Professor Firdausi Qadri, Dr. Mahboob Hossain and Dr. Aparna Islam