Articles on Viruses

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Health workers get ready to spray insecticide in advance of the 2016 Summer Olympics, in Rio de Janeiro, Brazil, to combat the mosquitoes that transmit the Zika virus in this Jan. 26, 2016 photo. (AP Photo/Leo Correa, File)

Viruses can cause global pandemics, but where did the first virus come from?

Recent discoveries of ancient viruses are helping scientists understand their origins.
Imported frozen pomegranate seeds have been linked to hepatitis A infections in NSW. from www.shutterstock.com

What is hepatitis A and how can you get it from eating frozen fruit?

Hepatitis A is a virus that infects the liver. Symptoms usually take 15-50 days to develop after initial infection and typically last for several weeks or sometimes longer.
Watching bacteria and viruses duke it out, evolving to outwit each other. UC San Diego

Discovery of a surprise multitasking gene helps explain how new functions and features evolve

A core idea in molecular biology is that one gene codes for one protein. Now biologists have found an example of a gene that yields two forms of a protein – enabling it to evolve new functionality.
What will it take to finish polio off in the last three countries where it persists? AP Photo/B.K. Bangash

Inching closer to a world without polio

Pakistan had only eight new diagnoses of polio in 2017. The virus' days look numbered – but health workers have their work cut out for them to eradicate the devastating disease once and for all.
People and animals live side by side – and can have pathogens in common. Nichola Hill

Influenza’s wild origins in the animals around us

No one then knew a virus caused the 1918 flu pandemic, much less that animals can be a reservoir for human illnesses. Now virus ecology research and surveillance are key for public health efforts.
Could the yearly flu shot become a thing of the past? AP Photo/Darron Cummings, File

Influenza: The search for a universal vaccine

Flu virus mutates so quickly that one year's vaccine won't work on the next year's common strains. But rational design – a new way to create vaccines – might pave the way for more lasting solutions.
Once a respiratory virus like influenza has entered your home or workplace, it is wise to treat the space like a hospital and practice infection prevention and control. (Shutterstock)

How to eradicate the flu virus from your home

From face-touching to virus-contaminated electronic devices, a scientist offers some tips on eradicating the flu virus from your home.
Bad news on the doorstep. How to stay safe? Shutterstock.

Viruses and malware: are we protecting ourselves adequately?

Like the recent WannaCry, viruses and other hacker software are now part of our digital lives. How big are the threats? How can we protect ourselves?

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