Answer the following questions based on the text. Dr. William Frankland, one of the top allergists of the 20th century and an indomitable researcher who helped legions of hay fever sneezers by distributing daily pollen counts to the British public, died on Thursday in London at 108. His son, Andrew, said the cause was the coronavirus. He lived in a care home at the historic Charterhouse complex, a former monastery in London. Dr. Frankland, who was among the world's oldest active scientists, remained remarkably vigorous to the end, despite having come close to death several times in his long life; He was born prematurely weighing just over three pounds, and he contracted bovine tuberculosis as a child Later, while serving in the British Army, he spent years as a malnourished prisoner of war in Japanese camps. He had another brush with death when he used himself as an experiment on a biting insect and had an anaphylaxis reaction. Dr. Frankland was best known in professional circles for a number of groundbreaking clinical studies. In 1954, he proved that pollen proteins were the parts of plants most useful in preseason allergy inoculations, and in 1955 he debunked the efficacy of treating asthma with bacterial vaccines. He was an early proponent of using allergen injections to desensitize patients with severe allergies, and developed immunotherapy serums for hay fever sufferers with pollen from one of the world's largest pollen farms, which he operated outside London until the late 1960s. (Adopted from: https://www.nytimes.com/2020/04/03/science/william-frankiand-dead-coronavirus.html (April 12, 2020)) The main idea of paragraph three is about William Frankland's...

Question

Answer the following questions based on the text.

Dr. William Frankland, one of the top allergists of the 20th century and an indomitable researcher who helped legions of hay fever sneezers by distributing daily pollen counts to the British public, died on Thursday in London at 108.

His son, Andrew, said the cause was the coronavirus. He lived in a care home at the historic Charterhouse complex, a former monastery in London.

Dr. Frankland, who was among the world's oldest active scientists, remained remarkably vigorous to the end, despite having come close to death several times in his long life; He was born prematurely weighing just over three pounds, and he contracted bovine tuberculosis as a child Later, while serving in the British Army, he spent years as a malnourished prisoner of war in Japanese camps. He had another brush with death when he used himself as an experiment on a biting insect and had an anaphylaxis reaction.

Dr. Frankland was best known in professional circles for a number of groundbreaking clinical studies. In 1954, he proved that pollen proteins were the parts of plants most useful in preseason allergy inoculations, and in 1955 he debunked the efficacy of treating asthma with bacterial vaccines.

He was an early proponent of using allergen injections to desensitize patients with severe allergies, and developed immunotherapy serums for hay fever sufferers with pollen from one of the world's largest pollen farms, which he operated outside London until the late 1960s.

(Adopted from: https://www.nytimes.com/2020/04/03/science/william-frankiand-dead-coronavirus.html (April 12, 2020))

The main idea of paragraph three is about William Frankland's...