TED-Ed: The real reason polio is so dangerous | Dan Kwartler

What was the primary reason polio was considered highly dangerous despite causing paralysis in less than 1% of cases?

• It was resistant to all known treatments.

• It was highly infectious and spread easily.

• It caused immediate death in most cases.

• It was only transmissible through direct contact.

Who developed the oral polio vaccine (OPV) that was easier to administer and cheaper?

• Albert Sabin

• Edward Jenner

• Jonas Salk

• Louis Pasteur

What was a significant concern with the oral polio vaccine (OPV) in under-vaccinated populations?

• It was too expensive to produce.

• It could mutate into new vaccine-derived strains.

• It was ineffective against all polio strains.

• It required multiple doses to be effective.

What is the minimum vaccination threshold needed to prevent polio strains from mutating?

• 50%

• 60%

• 70%

• 80%

What technological tool is used to locate and immunize remote communities in the fight against polio?

• Satellite communication

• Geospatial imaging and analysis

• Blockchain technology

• Virtual reality simulations

Which regions are currently the focus for eradicating the last remnants of type 1 polio virus?

• North America and Africa

• South America and Europe

• Pakistan and Afghanistan

• Australia and New Zealand

What is a major challenge in reaching areas for polio vaccination?

• Resistance from local governments

• High cost of vaccines

• Military conflict and civil unrest

• Lack of vaccine supply