Why immunocompromised people need a third dose

How photography can build peace and justice in war-torn communities

Pamina Firchow, Brandeis University; Tiffany Fairey, King's College London; Yvette Selim, University of Technology Sydney

People wanted to use photography not only to document the aftermath of war and violence, but also to actively support peace.

Afghan troops sought safety in numbers – igniting a cascade of surrender

Todd Lehmann, University of Michigan

The Afghan military’s collapse was the collective result of individual soldiers making rational decisions based on what they expected their comrades to do.

What a baker from ancient Pompeii can teach us about happiness

Nadejda Williams, University of West Georgia

While they weren’t living through a pandemic, citizens of ancient Pompeii weren’t strangers to societal stress.

The story of Nearest Green, America’s first known Black master distiller

Stefanie Benjamin, University of Tennessee

Black Americans’ contributions to some of the country’s most iconic dishes and spirits are finally starting to be recognized in the media and in museum exhibitions.

After India’s brutal coronavirus wave, two-thirds of population has been exposed to SARS-CoV2

Rajib Dasgupta, Jawaharlal Nehru University

A public health scholar based in New Delhi explains how India has emerged from the massive spike in COVID-19 cases, even as the country braces for a new wave.

Hospitals often outsource important services to companies that prioritize profit over patients

Leonard L. Berry, Texas A&M University; Paul Barach, Thomas Jefferson University

Outsourcing is common in many hospitals. But when health care systems outsource certain clinical tasks to separate companies, costs can go up, quality of care can fall and patients can be harmed.

What is Ashura? How this Shiite Muslim holiday inspires millions

Noorzehra Zaidi, University of Maryland, Baltimore County

For Muslims, Ashura marks the martyrdom of the Prophet Muhammed’s grandson Hussain.

Bat pups babble and bat moms use baby talk, hinting at the evolution of human language

Ahana Aurora Fernandez, Museum für Naturkunde, Berlin

Vocal imitation is a key part of how humans learn to speak. New research shows that bats babble to learn and use baby talk to teach, just like people do.

The biological switch that could turn neuroplasticity on and off in the brain

Gemma Ware, The Conversation; Daniel Merino, The Conversation

From the archive: new research helps unpick clues about the brain’s ability to change its structure. Listen to The Conversation Weekly podcast.

The impact of COVID-19 has been lower in Africa. We explore the reasons

Alex Ezeh, Drexel University; Michael Silverman, Western University; Saverio Stranges, Western University

The emergence of variants of concern with increased potential for transmission and more severe disease in the younger population could make Africa more susceptible to a severe COVID-19 epidemic.

Indian Residential School findings: How diverse Indigenous communities deal with grief and healing

Jonathan Hamilton-Diabo, University of Toronto

Indigenous people and communities are not monolithic. How they react to and deal with tragedy will be different. Acknowledging that will help us all heal.

Why I no longer think we can eliminate COVID – public health expert

Andrew Lee, University of Sheffield

As New Zealand enters another lockdown after detecting a single COVID case, it’s time to consider whether stringent zero COVID strategies are feasible in the long term.

According to the Health Nutritional Index, eating one hot dog costs a person how many minutes of "healthy" life?

1. A. 27
2. B. 36
3. C. 60
4. D. 106

Click here for the answer.