Except the immunity that comes from death. That's somewhat less desirable
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Polio is disabling and an awful affliction, but most cases are asymptomatic and so the death rate is quite a bit below COVID-19. Rubella is usually very mild, but since it causes extreme birth defects it's very important to vaccinate against
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Diphtheria, hepatitis B, yellow fever, meningitis, tetanus, TB, not too good. Serious complications and deaths from measles, sterility from mumps, congenital problems from rubella. Need I go on?
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1 in 200 dead, another 1 in 20 with long term illness, perhaps permanent damage, need I go on?
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