 So chickenpox, adenovirus, measles, mumps, rubella, which he combined into the MMR vaccine that we all get, Japanese encephalitis, meningococcus, hepatitis A, hepatitis B, pneumococcus, haemophilus influenzae type B, and then others. Damn. By the end of his career, he developed over 40 vaccines. 40? Including eight of the 14 that we all get as children. Wow. Wow.