Development of polio vaccine CHSE +2 2nd Year Solutions– Here we will share the Development of polio vaccine CHSE +2 2nd Year Solutions-. If you are searching for the Development of polio vaccine CHSE +2 2nd Year questions and answers(2023-24)-, then you are in the right place. queryexpress provides the best solution to Invitation to English- 1CHSE +2 2nd Year.
Development of polio vaccine CHSE +2 2nd Year Solutions
In this article, we are going to solve the latest edition of CHSE Odisha board +2 2nd year English book Invitation to English-1. Here you will get all the answer keys to the chapter Development of polio vaccine by Bonnie A. Maybury Oknek. Apart from that we are also focusing on some important questions in the chapter given below.
- How is the polio vaccine developed?
- When was the polio vaccine developed?
- Who is the author of the Development of the Polio vaccine?
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Development of polio vaccine +2 2nd year questions answers
Think it out.
- What is poliomyelitis?
Answer: Poliomyelitis, or polio, is an acute, viral, infectious disease that spreads from person to person via the faecal-oral route. It is a very serious disease that can lead to paralysis or even death.
- When did Roosevelt find out that he had polio?
Answer: During the outbreak of poliomyelitis in 1921, Roosevelt found out that he had polio when he was vacationing with his family at their Campobello estate.
- What are the early symptoms of a polio attack?
Answer: The symptoms of a polio attack are vomiting, headaches, nausea, and fever.
- Which things are carriers of poliovirus?
Answer: Infected faeces and infected droplets travelling through the air from an infected polio person carry the polio virus.
- What percentage of people attacked by the poliovirus actually suffer from severe polio?
Answer: 10% of infected people develop symptoms, and 1% develop a paralytic form of polio.
- What are the two forms of polio?
Answer: The two forms of polio are the spinal form which affects the limbs and the bulbar form which affects the lungs.
- Are the symptoms of both forms of polio similar or different? Which form of the disease is more dangerous?
Answer: The symptoms of both forms of polio are similar. They both have the symptoms of muscle pain, a stiff neck and back, and possible paralysis.
CHSE +2 2nd year Development of polio vaccine answer key
Think it out.
- Did polio affect Roosevelt‘s political career?
Answer: Yes, polio did affect Roosevelt’s political career. Polio left him paralysed from the waist down, but he still managed to become the 32nd President of the United States.
- What was the highest position that Roosevelt achieved in his political career?
Answer: Roosevelt became the 32nd President of the United States, and that was the highest position that he achieved in his political career.
- How did he spearhead the fight against polio?
Answer: He spearheaded the fight against polio by increasing public awareness and promoting research to develop a vaccine.
- Who is the most vulnerable to polio?
Answer: Children are the most vulnerable to polio.
- Why were parents in the early 1950s afraid of sending their children to school?
Answer: Parents were concerned that their children would contract polio in crowded classrooms or playgrounds. In order to keep their children safe, they are afraid of sending them to school.
Development of polio vaccine solved question paper +2 CHSE
Think it out
- Why did early attempts at developing the polio vaccine fail?
Answer: The early attempts at the polio vaccine failed because researchers did not know about the three types of poliovirus.
- Why were some children immune to polio before the 1900s?
Answer: Some children were immune to polio before the 1900s because their mother’s antibodies were passed on to them through breastfeeding.
- Did improved sanitation help to avoid polio attacks before the 1900s?
Answer: Before 1900, there was no significant impact on avoiding polio attacks by improving sanitation because polio is mainly spread through person-to-person contact. Polio spreads easily and is not effectively controlled by sanitation measures.
- How did the March of Dimes work for the elimination of polio?
Answer: The March of Dimes, which was founded by Roosevelt, was a grass-roots organisation that enlisted the services of a respected researcher in order to find a safe vaccination for polio.
Invitation to English -1 CHSE +2 2nd year questions and answers
Think it out.
- What method did Jonas Salk use to develop the polio vaccine?
Answer: Jonas Salk used a process using formalin to develop the polio vaccine. This formalin helps to inactivate the whole virus.
- How did Salk develop a successful vaccine?
Answer: By using Formalin, a chemical, Salk developed a successful vaccine with a 70 to 90% protection rate.
- How was the first polio vaccine accepted?
Answer: The results of the first polio vaccine were dramatic. Due to this vaccine, cases of polio fell spectacularly in the vaccinated test group. Therefore, the government quickly granted permission to distribute throughout the country.
- What was the problem with the original Salk vaccine?
Answer: The original Salk vaccine induced 260 cases of poliomyelitis, including 10 deaths. This happened because of the incomplete inactivation of some virus particles.
- How was the Salk vaccine given?
Answer: The Salk vaccine was given in two intramuscular injections spaced one month apart, and it also required a booster every 5 years.
- How is the Sabin vaccine given?
Answer: The Sabin vaccine is given in an oral form.
- What are the advantages of an oral vaccine?
Answer: The advantages of an oral vaccine are its long-lasting immunity, the fact that sterile syringes and needles are not necessary, and its lower cost.
- What is its major disadvantage?
Answer: The major disadvantage of oral vaccines is that they cannot be used in patients with compromised immune systems.
Invitation to English-1 Development of polio vaccine +2 answers
Think it out: 5
- What induces higher levels of antibody formation?
Answer: Effective culturing and purification techniques induce higher levels of antibody formation.
- What is the latest research in the development of the polio vaccine?
Answer: The latest research in the development of a polio vaccine involves the use of recombinant biotechnology. This involves genetic alterations of the poliovirus and utilising Escherichia coli as a host for bacterial gene cloning.
- Is the complete eradication of poliomyelitis possible?
Answer: Yes, complete eradication of poliomyelitis is possible because researchers are using new technology to increase the efficacy of the polio vaccine and eradicate the disease completely.
FAQs-Development of polio vaccine CHSE +2 2nd Year Solutions
Q1-How is the polio vaccine developed?
Answer-Jonas Salk used a process using formalin to develop the polio vaccine. This formalin helps to inactivate the whole virus.in this way, a successful vaccine with a 70 to 90% protection rate is developed.
Q2- Who is the author of the Development of the Polio vaccine?
Answer-Bonnie A. Maybury Okonek is an American microbiologist is the author of The Development of polio vaccine.
Q3-When was the polio vaccine developed?
Answer-Polio vaccine was developed in the year 1955