Poliomyelitis (Poliovirus)

The video explains the history and science of poliomyelitis, commonly known as polio, caused by the polio virus. It covers the early outbreaks, scientific discoveries identifying the virus, and the development of the iron lung for treatment. The video details the virus's transmission, symptoms, and the concept of post-polio syndrome. It also discusses the role of immunity, the impact of sanitation on outbreaks, and the success of vaccination programs in eradicating polio in many regions.

What was the significant discovery made by Ivar Wickman in 1905 regarding polio?

• Polio can be cured with antibiotics.

• Polio is caused by bacteria.

• Polio is an airborne disease.

• Polio is infectious and not always severe.

What is the primary function of the iron lung developed in 1929?

• To cure polio completely.

• To assist patients with breathing difficulties.

• To provide nutrition to polio patients.

• To prevent the spread of polio.

Which of the following is true about the serotypes of the polio virus?

• There are four serotypes of the polio virus.

• Immunity to one serotype provides immunity to all.

• Polio virus can infect both humans and animals.

• The serotypes are non-enveloped RNA viruses.

What is post-polio syndrome?

• A new infection caused by the polio virus.

• A condition where polio symptoms return years later.

• A vaccine-induced immunity against polio.

• A genetic disorder unrelated to polio.

In which type of regions are polio viruses endemic?

• Regions with high vaccination rates.

• Regions with good sanitation.

• Regions with crowding and poor sanitation.

• Regions with low population density.

What are the two types of vaccines available for polio prevention?

• Subunit vaccine and inactivated vaccine.

• Inactivated vaccine and oral vaccine.

• Recombinant vaccine and live attenuated vaccine.

• Live attenuated vaccine and oral vaccine.

As of 2020, which two countries are still affected by poliovirus 1?

• Pakistan and Afghanistan.

• China and Russia.

• Brazil and Mexico.

• India and Nigeria.