A new malaria vaccine has shown promising results in trials, preventing the disease in 77% of cases. The vaccine was already under development before the pandemic struck, and researchers at the Jenner Institute in Oxford quickly built on this work to develop what would go on to become the Oxford/AstraZeneca jab. Now, writes institute director Adrian Hill, the work they’ve done on COVID could in turn help bring us one step closer to preventing malaria.

In India, a dramatic spike in COVID-19 infections has left the country reeling. Hospitals can’t accommodate the number of patients needing care, oxygen supplies are being flown in from donor countries. Yet, until a few months ago it looked as though the country had brought the pandemic under control. What went wrong? Michael Head sets out the factors that have contributed to the tragic turn of events.

By the mid-1990s, it was clear to the world that Somalia had become Africa’s first failed post-colonial state. Yet this vast country of just 10 million people had had a glorious history before this calamity as the first to enjoy a democratic transfer of power in the 1960s. Is there any chance that the country can recreate its early successes? Abdi Ismail Samatar explains why the omens are bad unless two of the key drivers of the Somali disaster are understood – and acted on.

Megan Clement

Commissioning Editor, COVID-19

Konstantin Nechaev / Alamy Stock Photo

New malaria vaccine proves highly effective – and COVID shows how quickly it could be deployed

Adrian Hill, University of Oxford

The R21 vaccine protected three-quarters of children against malaria in trials.

Relatives of COVID-19 victims walk past a van at Nigambodh Ghat crematorium in New Delhi. SOPA Images Limited/Alamy Stock Photo

COVID-19 in India: an unfolding humanitarian crisis

Michael Head, University of Southampton

Stories of reaching herd immunity were certainly premature.

The grand designs of the major political and military actors lack an important ingredient: the views and the hopes of ordinary Somalis. Getty Images

Somalia’s toxic political and security order: the death knell of democracy

Abdi Ismail Samatar, University of Pretoria

The political and security order which numerous foreign actors have been investing in has produced marginal benefits for the population.

Health + Medicine

How a difficult childhood makes it more likely you’ll have mental and physical health problems as an adult

Ziggi Ivan Santini, University of Southern Denmark; Bruce Perry, Northwestern University; Michael Marmot, UCL; Sarah Stewart-Brown, University of Warwick; Vibeke Jenny Koushede, University of Copenhagen

A traumatic childhood can affect you physically, mentally and socially.

COVID-19 in Brazil: how Jair Bolsonaro created a calamity

Alfredo Saad Filho, King's College London; Fernanda Feil, Universidade Federal Fluminense

The Brazilian president has engineered the conditions for the virus to run rampant through the country while he pursues his own agenda.

Energy + Environment

This supermoon has a twist – expect flooding, but a lunar cycle is masking effects of sea level rise

Brian McNoldy, University of Miami

That doesn't mean sea level rise has stopped – it hasn't. When that lunar cycle starts upward again, it will mean double trouble for places like Miami.

There aren’t enough trees in the world to offset society’s carbon emissions – and there never will be

Bonnie Waring, Imperial College London

Even if they can't save us from climate change, society still depends on forests.