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Poliomyelitis (Polio)

11 questions · History

Poliomyelitis, popularly called infantile paralysis, was one of the most feared diseases of the 20th century. It is caused by the poliovirus, spread by smear infection, usually contaminated water, and in rare cases attacks the nerve cells of the spinal cord. The result can be permanent paralysis: often of the legs, in severe cases also of the breathing muscles. Affected children then had to be ventilated in an „iron lung“, a large metal cylinder that became the symbol of the disease. In the summers of the 1940s and 1950s polio outbreaks caused real panic in many countries; swimming pools and cinemas were closed. The turning point came with two vaccines: the injected vaccine developed by Jonas Salk and the oral vaccine devised by Albert Sabin. Thanks to worldwide vaccination campaigns, polio has today disappeared from almost all countries and is close to global eradication: after smallpox it would be only the second disease humanity has defeated. Only in a few regions do vaccination teams still fight the last cases.

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What is poliomyelitis popularly called?

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Infantile paralysis

It especially often struck children.

💡 Did you know? Hence the name infantile paralysis.

Which virus causes infantile paralysis?

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The poliovirus

It attacks nerve cells in the spinal cord.

💡 Did you know? Usually, though, the infection goes unnoticed.

Which severe consequence can polio leave?

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Permanent paralysis

The legs are frequently affected.

💡 Did you know? If the breathing muscles are paralysed, it becomes life-threatening.

How is the poliovirus mainly transmitted?

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Through contaminated water

It enters the body through the mouth.

💡 Did you know? Poor hygiene aids the spread.

What was the ventilator for paralysed polio patients called?

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The iron lung

A large metal cylinder helped with breathing.

💡 Did you know? Some patients lived in it for years.

Who developed the first injected polio vaccine?

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Jonas Salk

His vaccine came in the mid-1950s.

💡 Did you know? Salk waived a patent.

Who developed the oral polio vaccine?

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Albert Sabin

His vaccine was simply given on a piece of sugar.

💡 Did you know? „Oral vaccine is sweet, polio is cruel.“

After which disease would polio be the second eradicated worldwide?

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Smallpox

Polio is close to worldwide eradication.

💡 Did you know? It still occurs in only a few countries.

Which US president was confined to a wheelchair by polio?

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Franklin D. Roosevelt

He fell ill as an adult and hid his paralysis.

💡 Did you know? He founded a foundation to fight polio.

In which seasons did polio outbreaks used to peak?

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In summer

People spoke of the „summer plague“.

💡 Did you know? Out of fear swimming pools were closed.

Which global effort drove polio eradication?

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Worldwide vaccination campaigns

Billions of children were vaccinated.

💡 Did you know? Organisations like Rotary also pushed it.

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