Multiple choice Which of the following pairs represents 'subunit' type vaccines only? Pneumococcal vaccine, pertussis vaccine Tetanus vaccine, diphtheria vaccine Cholera vaccine, botulism vaccine Tetanus vaccine, hepatitis B vaccine Meningococcal vaccine, diphtheria vaccine Reveal answer Fill a bubble to check yourself A Correct answer Explanation Subunit vaccines are a development of the killed vaccine approach. Examples are: Hepatitis B vaccine (HBV), Pertussis (part of DTaP combined immunisation) vaccine, Pneumococcal vaccine, Meningococcal vaccine, etc.