Science & technology | Controlling agricultural pests

RNA, good for vaccines, can also be used as a pesticide

A new approach to debugging

RIBONUCLEIC ACID (RNA), once little-known outside biological circles, has recently become the molecule de nos jours. The reason is its role in covid-19 vaccines. The RNA molecules in these encode spike, a coronavirus protein. So, when the protein-making machinery of a body cell encounters such RNA, spike is what it makes. That lets a vaccine-recipient’s immune system learn to recognise a crucial part of the enemy before the real thing turns up.

This article appeared in the Science & technology section of the print edition under the headline “Debugging. A new approach”

Race in America

From the May 22nd 2021 edition

Discover stories from this section and more in the list of contents

Explore the edition

More from Science & technology

Parasitic wasp - laying egg in hoverfly larvae.

Wasps stole genes from viruses

That probably assisted their evolutionary diversification

The World Health Organisation crest on the wall.

America’s departure from the WHO would harm everyone

Whether it is a negotiating ploy remains to be seen



High-tech antidotes for snake bites

Genetic engineering and AI are powering the search for antivenins

Can you breathe stress away?

Scientists are only beginning to understand the links between the breath and the mind

The Economist’s science and technology internship

We invite applications for the 2025 Richard Casement internship