Biological E. Limited supplies Diphtheria and Tetanus Vaccine [BE Td]. Biological E. Limited offers various types of vaccines like Tetanus vaccine, Hepatitis B vaccine etc and preventive medicines. The Diphtheria and Tetanus Vaccine [BE Td] is used to provide immunization against Diphtheria and Tetanus for adults and adolescents. The Diphtheria and Tetanus Vaccine [BE Td] is available in 0.5ml vial pack or 5ml vial pack.