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>That herd immunity prevents the regular epidemics & pandemics common before vaccines Like Scarlet fever?

• toss1 6y ago
  No. Scarlet Fever is bacterial, not viral, and are fought by different parts of the body's immune system. Few if any attempts at creating vaccines against bacteria are successful, whereas vaccines against viruses are typically more successful, although viruses such as Influenza can evolve new versions frequently, requiring new vaccine versions.
  • GCSAQCMIYI 6y ago
    Huh? https://www.cdc.gov/vaccines/schedules/hcp/imz/child-adolescent.html https://www.cdc.gov/vaccines/schedules/hcp/imz/child-adolesc... > Diphtheria, Tetanus, Pertussis, Haemophilus influenzae type b, Pneumococcal conjugate, Meningococcal, Meningococcal B, Pneumococcal polysaccharide Of course that's not even relevant. Where are the Scarlet fever epidemics? Why did they go away at a time and pace similar to polio?
  • caamoqkkammcm 6y ago
    Huh? https://www.cdc.gov/vaccines/schedules/hcp/imz/child-adolescent.html https://www.cdc.gov/vaccines/schedules/hcp/imz/child-adolesc... >Diphtheria, Tetanus, Pertussis, Haemophilus influenzae type b, Pneumococcal conjugate, Meningococcal, Meningococcal B, Pneumococcal polysaccharide Of course that's not even relevant. Where are the Scarlet fever epidemics? Why did they go away at a time and pace similar to polio?