Which of the following scientists is credited with the development of the first successful polio vaccine? [#1300]

Jonas Salk developed the inactivated poliovirus vaccine (IPV) in 1955, which was the first effective vaccine against polio. Salk's vaccine led to a significant reduction in polio cases and paved the way for global efforts to eradicate the disease.

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Jonas Salk developed the inactivated poliovirus vaccine (IPV) in 1955, which was the first effective vaccine against polio. Salk's vaccine led to a significant reduction in polio cases and paved the way for global efforts to eradicate the disease.

Reflexive pronouns like "himself", "herself", "itself", "themselves" refer back to the subject of the sentence, indicating that the action is being performed on the subject itself.

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Reflexive pronouns like "himself", "herself", "itself", "themselves" refer back to the subject of the sentence, indicating that the action is being performed on the subject itself.

Dr. Verghese Kurien (1921 - 2012) is popularly known as the "Father of the White Revolution" in India. He was a social entrepreneur and dairy engineer who led initiatives that significantly increased milk production in India.

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Dr. Verghese Kurien (1921 - 2012) is popularly known as the "Father of the White Revolution" in India. He was a social entrepreneur and dairy engineer who led initiatives that significantly increased milk production in India.

The formula to calculate the area of a circle is A = πr², where A is the area and r is the radius of the circle.

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The formula to calculate the area of a circle is A = πr², where A is the area and r is the radius of the circle.

Modal auxiliary verbs, also called modal verbs, are a type of auxiliary verb that express modality, such as possibility, necessity, or obligation. Examples include "can", "could", "may", "might", "shall", "should", "will", and "would".

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Modal auxiliary verbs, also called modal verbs, are a type of auxiliary verb that express modality, such as possibility, necessity, or obligation. Examples include "can", "could", "may", "might", "shall", "should", "will", and "would".

Vatican City is the smallest country in the world, with a population of just over 800 people and a land area of approximately 110 acres (0.44 square kilometers).

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Vatican City is the smallest country in the world, with a population of just over 800 people and a land area of approximately 110 acres (0.44 square kilometers).

Subordinating conjunctions, such as "because", "although", "if", and "unless", connect a dependent clause to an independent clause, showing the relationship between the two clauses.

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Subordinating conjunctions, such as "because", "although", "if", and "unless", connect a dependent clause to an independent clause, showing the relationship between the two clauses.

The Amrabad Tiger Reserve (ATR) is located in the southern part of Telangana, India, in the Nagarkurnool and Nalgonda districts. It's one of the biggest tiger reserves in the country, covering 2,611.4 square kilometers. The reserve is part of the Nallamala Hills, which are an offshoot of the Eastern Ghats.

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The Amrabad Tiger Reserve (ATR) is located in the southern part of Telangana, India, in the Nagarkurnool and Nalgonda districts. It's one of the biggest tiger reserves in the country, covering 2,611.4 square kilometers. The reserve is part of the Nallamala Hills, which are an offshoot of the Eastern Ghats.

Indira Point is located on Great Nicobar Island in the Andaman and Nicobar Islands, which are in the eastern Indian Ocean. It's the southernmost point of India, and its coordinates are 6°45'10″N and 93°49'36″E.

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Indira Point is located on Great Nicobar Island in the Andaman and Nicobar Islands, which are in the eastern Indian Ocean. It's the southernmost point of India, and its coordinates are 6°45'10″N and 93°49'36″E.

The Dadasaheb Phalke Award was first given out in 1969. The first person to receive it was actress Devika Rani. She was honored for her great contributions to Indian cinema at the 17th National Film Awards.

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The Dadasaheb Phalke Award was first given out in 1969. The first person to receive it was actress Devika Rani. She was honored for her great contributions to Indian cinema at the 17th National Film Awards.

Jupiter has a total of 92 confirmed natural satellites, with the largest four being Io, Europa, Ganymede, and Callisto. These four moons are known as the Galilean moons, as they were discovered by Galileo Galilei in 1610.

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Jupiter has a total of 92 confirmed natural satellites, with the largest four being Io, Europa, Ganymede, and Callisto. These four moons are known as the Galilean moons, as they were discovered by Galileo Galilei in 1610.