Of the 14 vaccines routinely recommended in current vaccine schedules , he developed eight : those for measles , mumps , hepatitis A , hepatitis B , chickenpox , meningitis , pneumonia and Haemophilus influenzae bacteria .
Of the 14 vaccines currently recommended , he developed eight : those for measles , mumps , hepatitis A , hepatitis B , chickenpox , meningitis , pneumonia and Haemophilus influenza bacteria .