What is listeria?

This illustration depicts a three-dimensional (3D) computer-generated image of a grouping of Listeria monocytogenes bacteria. The artistic recreation was based upon scanning electron microscopic (SEM) imagery.

What is listeria?

CNN's Elizabeth Cohen explains what listeria is and how you can avoid getting it.

01:20 - Source: CNN

Diseases, viruses and infections 15 videos

This illustration depicts a three-dimensional (3D) computer-generated image of a grouping of Listeria monocytogenes bacteria. The artistic recreation was based upon scanning electron microscopic (SEM) imagery.

What is listeria?

01:20

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Greg Manteufel.

Man becomes amputee after dog lick infection

01:25

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flesh eating bacteria

What is flesh-eating bacteria?

01:35

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A young girl, with cholera symptoms is treated at the Cholera Treatment Center of Diquini in Port-au-Prince, Haiti on 23 August, 2016.
The cholera epidemic that started in 2010 has infected some 800,000 and killed nearly 10,000 people. / AFP / HECTOR RETAMAL (Photo credit should read HECTOR RETAMAL/AFP/Getty Images)

What is cholera?

01:13

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This scanning electron micrograph, SEM, revealed some of the ultra structural morphologic features of a Klebsiella pneumoniae bacterium. K. pneumoniae is a non-motile, Gram-negative rod, and a facultative anaerobe, which means that it is able to adapt to

What is pneumonia?

01:15

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LONDON, ENGLAND - JULY 30: A woman wearing a surgical mask to prevent the transmission of airborne infection walks in Westminster on July 30, 2009 in London, England. Figures released by the Health Protection Agency show that by July 19, an estimated 100,000 Britons have been infected with swine flu and there have been 26 deaths in England linked to the disease. Over 700 people worldwide have died after contracting swine flu which is spreading faster than any other flu pandemic. (Photo by Oli Scarff/Getty Images)

4 ways the flu turns deadly

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norovirus explainer Cohen orig_00003306.jpg

How viral is norovirus?

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The dangers of E. coli

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Salmonella enterica bacteria become more virulent and therefore better at causing disease in the micrograity environment of space.

Salmonella 101: What you need to know

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aedes aegypti

What is the Zika virus?

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What is malaria?

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enterovirus d68 cohen mg orig_00001503.jpg

Virus sends hundreds to hospital

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CDC sees 'steady increase' in drug-resistant bacteria

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uk ebola discovery spread soares pkg_00004912.jpg

The origin of the Ebola virus

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flu flesh eating

Flu diagnosis ends up being flesh-eating disease

00:46

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- Source: HLN