Artículos sobre Viral infections

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Researchers Tian Xia and Zijie Lin test a plasma prototype for preventing airborne transmission of porcine reproductive and respiratory syndrome virus at a Michigan pig farm. Robert Coelius/Michigan Engineering, Communications & Marketing

A plasma reactor zaps airborne viruses – and could help slow the spread of infectious diseases

Viruses are small enough to pass through filters, including face masks. Disabling viruses with electrically charged gases could be a better way to curb airborne transmission.
The flu comes on rapidly and symptoms get worse over the first few days. Shutterstock

We can’t predict how bad this year’s flu season will be but here’s what we know so far

The 2018 flu season was mild, while 2017 was a particularly bad year. It's impossible to predict what the 2019 flu season has in store, but we've seen more cases so far this year than usual.
What goes up must come down, and that includes the protection the flu vaccine offers against influenza. Irina Bg/Shutterstock

When’s the best time to get your flu shot?

Protection wanes after four or five months, so for most people, it makes sense to get a flu shot in mid to late May or early June so you're protected when the flu season peaks in August or September.
The thing all five viruses have in common is they can cause mild to very severe liver damage. wk1003mike/Shutterstock

Explainer: the A, B, C, D and E of hepatitis

Hepatitis A, B, C, D and E are very different viruses. Hepatitis A is genetically closer to the common cold than it is to hepatitis B. Hepatitis C is closer to the virus that causes dengue fever.
A virus is essentially an information system (encoded in DNA or RNA) surrounded by a protective coat. Tom Thai/Flickr

Disease evolution: our long history of fighting viruses

Humans have a deep history of viral infections, the evidence for which dates back to ancient DNA from Egyptian mummies.
Children in particular experience a multitude of viral illnesses during their early years. MIKI Yoshihito/Flickr

Health Check: when are we most likely to catch viral diseases?

Viruses cause all kinds of infections from relatively mild cases of the flu to deadly outbreaks of Ebola. Clearly, not all viruses are equal and one of these differences is when you can infect others.

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