All the evidence shows voters want Labour to shift to the left — but initial signs from Andy Burnham are worrying on that front, cautions DIANE ABBOTT
DISEASES come in many guises. Before late 2019, there had never been a single case of Covid-19 and SARS-CoV-2 was an unknown virus. Now, less than a year and a half later, there have been millions of cases. In contrast, a disease like malaria has been with humans ever since we emerged as a species.
An early species of Plasmodium, the parasite which causes malaria, was found in mosquitoes that had been preserved in amber for nearly 30 million years. Yet this is no guide to a disease’s impact. During 2020, more people on the continent of Africa died of malaria than Covid-19.
While it took less than a year to develop a vaccine for Covid-19, a vaccine for malaria has proven near-impossible. However, that may be about to change.
Coal-fired stoves in traditional homes are the primary source of extreme levels of air pollution in over-crowded Ulaanbaatar. As more people become climate-displaced, the situation is likely to worsen, write SCIENCE AND SOCIETY
In the centenary year of Fidel Castro, Cuba faces ferocious aggression from the United States — but we will not kneel, vows FIDEL CASTRO SMIRNOV
Neutrinos are so abundant that 400 trillion pass through your body every second. ROX MIDDLETON, LIAM SHAW and MIRIAM GAUNTLETT explain how scientists are seeking to know more about them
New research into mutations in sperm helps us better understand why they occur, while debunking a few myths in the process, write ROX MIDDLETON, LIAM SHAW and MIRIAM GAUNTLETT


