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Articles on Viruses

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Flooding from hurricanes like Irma in Florida can overwhelm sewer systems and spread pathogens in other ways. Brian Blanco/Getty Images

58% of human infectious diseases can be worsened by climate change – we scoured 77,000 studies to map the pathways

It’s not just mosquitos. Flooding, extreme heat and other climate-related hazards are bringing people into contact with pathogens more often, and affecting people’s ability to fight off disease.
The monkeypox virus, shown in this illustration, can be transmitted through close contact between people. Thom Leach/Science Photos Library via Getty Images

Why declaring monkeypox a global health emergency is a preventative step – not a reason for panic

By late July 2022, monkeypox was present in more than 70 countries with significant spread in certain communities. As a result, the World Health Organization began taking steps to fight the virus.
Monkeypox is caused by the monkeypox virus, which are the ovals and circles seen in this electron microscope image of the skin of a person infected with monkeypox. Cynthia S. Goldsmith, Russell Regnery/CDC

Is monkeypox a pandemic? An epidemiologist explains why it isn’t likely to become as widespread as COVID-19, but is worth watching

The monkeypox virus, which is commonly found in West and Central Africa, is now causing many infections in the U.S., Europe and Latin America.
Sepsis begins with infection by bacteria or a virus. This panoramic ilustration inside a blood vessel shows rod-shaped bacteria, red blood cells and immune cells called leukocytes. Kateryna Kon/Science Photo Library via Getty Images

Sepsis still kills 1 in 5 people worldwide – two ICU physicians offer a new approach to stopping it

Sepsis onset can be difficult to recognize, in part because its symptoms can mimic those of many other conditions. A treatment delay of even a few hours can make the difference between life and death.
Electron micrograph of monkeypox virus particles isolated in 2003 in the United States from human samples (left, mature, oval viruses; right, immature, round viruses). Cynthia S. Goldsmith, Russell Regner / CDC / AP

Monkeypox: ‘This is an entirely new spread of the disease’

This is not the first time that the monkeypox virus has spread beyond Africa, its continent of origin. But the current epidemic is unprecedented for a number of reasons.

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