Unraveling the Mystery: How Certain Individuals Repel Mosquitoes

Researchers observed that certain cows emit chemicals that deter insects. Inspired by this, scientists at the Rothamsted Institute explored if humans produce similar chemicals that repel mosquitoes. They collected human skin odours and conducted experiments using a Y-shaped tube to test mosquito responses. The study revealed that some individuals produce chemicals that hinder mosquitoes' ability to detect them. The team isolated these chemicals to develop a natural insect repellent, potentially impacting mosquito-borne diseases like malaria.

What did researchers initially observe about certain herds of cows?

• They produced more milk.

• They had a unique diet.

• They were more aggressive.

• They were unaffected by biting insects.

What was the first step scientists took to study human odors?

• They used electronic sensors to detect odors.

• They conducted interviews with volunteers.

• They observed people in a natural setting.

• They used foil sleeping bags to collect odors.

How do mosquitoes use human odors?

• To avoid predators.

• To detect the presence of a blood meal.

• To identify potential mates.

• To find shelter.

What did researchers discover about some individuals' odors?

• They have no effect on mosquitoes.

• They are similar to animal odors.

• They attract more mosquitoes.

• They produce chemicals that repel mosquitoes.

What is the potential impact of the research at Rothamsted?

• It could make mosquitoes more aggressive.

• It could increase the population of mosquitoes.

• It could reduce mosquito-borne diseases like malaria.

• It could lead to the extinction of mosquitoes.