A student had an attack of measles and recovered from the infection. His science teacher said that he will not get that disease again in his life time. Is it true? Why?

Open in App

Solution

Measles is caused by a virus. A person who has had measles in the past develop antibodies to fight this virus. He develops immunity. Hence, the person is very unlikely to get this disease again. Hence, the statement is true.

Suggest Corrections

Similar questions

Q. Rishi contacts and survives an infectious disease such as measles, he tends not to get the disease again later in life. Which of the following cells provides immunity?

Q. Sam's mother was undergoing treatment for severe cold and bacterial infection. He had lunch with his mother and used her hand towel for wiping off his hands. When he returned home, he found himself suffering from the same disease. What could be the possible reason of his sudden infection and what was the type of diseases he got infected with?

Rumi had doubts in his mind that, "Are changes helpful in life?”. To answer his question, the teacher asked him to do an activity. He asked the student to classify following changes into helpful and non-helpful from their perspective.

1.Farmers harvesting crop

2.Ripening of Fruits

3.Rancidity of food

Arnav was observing his mother making breakfast for him from raw eggs and bread. He thought about the possibility of getting back a raw egg from the omelette. He reaches out to his teacher to know about this where he learns that it's not possible to get back raw eggs.
a. Why is it not possible to obtain raw eggs from an omelette?

b. What kind of change happens when an omelette is made from a raw egg?

Read the following extract and rewrite it from the point of view of Oliver:
You may begin with: I had searched for Orlando everywhere.......
Oliver told them his story. He had searched for Orlando everywhere in the forest, he said, and at last, tired and hungry, he had fallen asleep under a tree. On his way from Rosalind's cottage, Orlando had seen his brother lying asleep. A big snake had curled round Oliver's neck and was just going to bite him when it saw Orlando and slipped away into a bush. And then Orlando saw that a hungry lion was waiting under the same bush, ready to kill Oliver as soon as he woke up. Orlando thought of all his brother's unkindness to him in the past. Why should he risk his own life to save his brother who had always been cruel to him? Twice he turned away to leave Oliver, but he had a kind and noble heart and at last, decided that he could not leave his brother to die. So he fought the lion. The fierce animal tore and bit his arm, but he managed to kill it. Oliver, wakened by the noise of the fight, saw that Orlando was risking his own life to save him. He was filled with shame at all his past unkindness to his young brother, and he begged Orlando to forgive him. Orlando took his brother to the Duke, who gave him food and clothes. Orlando said nothing about the wound the lion had given him, but it had been bleeding all the time, and suddenly he fell to the ground and fainted from loss of blood.

Join BYJU'S Learning Program