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An artist’s impression of antibodies (red and blue) responding to an infection with the new coronavirus SARS-CoV-2 (purple). KTSDESIGN/SCIENCE PHOTO LIBRARY / Getty Images

Declining antibodies and immunity to COVID-19 – why the worry?

If antibody levels drop dramatically after an infection, what does that mean for immunity? An expert explains how B and T cells contribute to immunity and why antibodies don’t tell the full story.
Billions of people are going to need a coronavirus vaccine and that demand is going to be hard to meet. Francesco Carta fotografo/Moment via Getty Images

Approval of a coronavirus vaccine would be just the beginning – huge production challenges could cause long delays

Once a coronavirus vaccine is approved, billions of doses need to be manufactured. Current vaccine production is nowhere near ready, for a variety of reasons, but planning now could help.
Cylinder seal (left) and modern impression (right) showing two people drinking beer through long straws. Khafajeh, Iraq (Early Dynastic period, c. 2600–2350 B.C.). Courtesy of the Oriental Institute of the University of Chicago

Brewing Mesopotamian beer brings a sip of this vibrant ancient drinking culture back to life

Beer was extremely popular in ancient Mesopotamia. Sipped through straws, it differed from today’s beer and was enjoyed by people from all walks of life.
A nurse holds plasma donated by a man who recovered from COVID-19. Guillermo Legaria /Getty Images South America

I’m a lung doctor testing the blood plasma from COVID-19 survivors as a treatment for the sick – a century-old idea that could be a fast track to treatment

In the blood of COVID-19 survivors are antibodies that can defeat SARS-CoV-2. Researchers are testing whether these antibodies can be collected and injected into others to save them from the virus.
Researchers are working on handheld devices that can signal the presence of SARS-CoV-2 in the air. fotograzia/Moment via Getty Images

The COVID-19 virus can spread through the air – here’s what it’ll take to detect the airborne particles

Miniaturized laboratory equipment is making it easier to identify airborne pathogens in the field, but there’s still work ahead to be able to instantly determine if a room is safe or contaminated.
A downpour or a drizzle: What causes the difference? David Pinzer Photography/Moment via Getty Images

Why does some rain fall harder than other rain?

Some rainstorms drench you in a second, while others drop rain in a nice peaceful drizzle. A meteorologist explains how rainstorms can be so different.
On Aug. 11, Russian President Vladimir Putin announced that a coronavirus vaccine developed in the country has been registered for use. Russian Health Ministry/Handout/Anadolu Agency via Getty Images

A COVID-19 vaccine needs the public’s trust – and it’s risky to cut corners on clinical trials, as Russia is

As Russia fast tracks a coronavirus vaccine, scientists worry about skipped safety checks – and the potential fallout for trust in vaccines if something ends up going wrong.