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Articles on Bacteria

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Red mitochondria in airway cells become coated with green SARS-COV-2 proteins after viral infection: Researchers discovered that the virus that causes COVID-19 damages lungs by attacking mitochondria. (Stephen Archer)

How COVID-19 damages lungs: The virus attacks mitochondria, continuing an ancient battle that began in the primordial soup

COVID-19 causes lung injury and lowers oxygen levels in patients because the SARS-CoV-2 virus attacks cells’ mitochondria. This attack is a throwback to a primitive war between viruses and bacteria.
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.
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.

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