Zainal Abedin joined the Pak-SEATO Cholera Research Laboratory in 1968 as a Health Assistant.. During the service time in the center he worked for DSS and Vaccine Trials. In last stage of his service he was working with Dr. Roger Glass on Rota virus surveillance project. He was all through an active worker. In 1984 he left the ICDDR,B job and went to Saudi Arabia to work.
On May 7, 2005 Mr. Abedin died. He left behind his wife, two sons and two daughters.