Articles on Viruses

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Infection fatality rate is simply the number of deaths divided by the number of infections, but finding those numbers is harder than it might seem. AP Photo/John Minchillo

How deadly is the coronavirus? The true fatality rate is tricky to find, but researchers are getting closer

The percentage of people who die from a coronavirus infection is an important number for public health experts to know. Recent estimates now put it at 0.65%, far lower than initially thought.
COVID-19 has been linked to neurological problems in those with severe disease. Ralwel / Getty Images

Rare neurological disorder, Guillain-Barre Syndrome, linked to COVID-19

As if the symptoms of COVID-19 were not disturbing enough, physicians have noted a rare neurological condition that emerges during some severe cases of this viral infection.
Entomologist Brian Lovett examines flea beetle-infested potatoes in Morgantown, West Virginia. Matt Kasson

How to manage plant pests and diseases in your victory garden

The COVID-19 pandemic has boosted interest in home gardening. Three scientists who garden explain some basic methods for controlling common insects and microbes that can spoil your crop.
Screening for symptoms can catch some cases of COVID-19, but about people who are infected but not showing any symptoms? AP Photo/John Raoux

Can people spread the coronavirus if they don’t have symptoms? 5 questions answered about asymptomatic COVID-19

There is a lot of confusion and concern around asymptomatic spread of SARS-C0V-2. An infectious disease expert explains how many people are asymptomatic and how they can spread the virus.
Coughing, sneezing, talking and even just breathing can produce airborne particles that can spread SARS-CoV-2. Stanislaw Pytel/Digital Vision via Getty Images

People are getting sick from coronavirus spreading through the air – and that’s a big challenge for reopening

SARS-CoV-2 can be spread through the air. But just how much of a factor that is has been hard to determine. Recent evidence suggests it is common, posing problems as public places begin to reopen.
Misha Jordaan/Gallo Images via Getty Images

The new architectural frontier: buildings and their microbiomes

The study of two hospitals was a first for researching the microbiology of the built environment in South Africa – a multi-disciplinary approach to understanding how to design healthier buildings.
A health worker carries out an olfactory test to monitor smell loss to a resident 65 km from Buenos Aires city, on May 24, 2020, amid the COVID-19 coronavirus pandemic. ALEJANDRO PAGNI/AFP via Getty Images

COVID-19, smell and taste – how is COVID-19 different from other respiratory diseases?

Many respiratory viruses cause us to temporarily lose our sense of smell. But SARS-CoV-2 isn't like those other viruses. Researchers are now exploring how it differs and whether patients recover.

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