Diseases, Conditions, Syndromes

How diarrhea pathogens switch into attack mode at body temperature

Many bacterial pathogens excrete toxins as soon as they have entered the host in order to suppress its immune response. Researchers at Ruhr-Universität Bochum (RUB) have analyzed what happens on the molecular level when ...

Diseases, Conditions, Syndromes

Can you die from a common cold?

Most people know that the flu can kill. Indeed, the so-called Spanish flu killed 50 million people in 1918—more than were killed in the first world war. But what about the common cold? Can you really catch your death?

Medical research

Fighting bacterial infection with drug-eluting medical devices

Medical practitioners routinely outfit patients with devices ranging from cardiovascular stents, pacemakers, catheters, and therapeutic lenses to orthopedic, breast, dental, and cochlear implants and prostheses. These accessories ...

Diseases, Conditions, Syndromes

Is it sore throat or strep throat?

A sore throat is a common symptom of an upper respiratory infection such as a cold or flu. It's also a symptom of a bacterial infection commonly referred to as strep throat. How can you tell if your child's sore throat is ...

Immunology

Salmonella—how the body fights back

New research from the University of East Anglia shows how the human body powers its emergency response to salmonella infection.

Oncology & Cancer

Scientists unveil the secret of cancer-associated Warburg effect

A new study, led by researchers at the University of Chicago, provides an answer to why cancer cells consume and use nutrients differently than their healthy counterparts and how that difference contributes to their survival ...

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Infection

An infection is the detrimental colonization of a host organism by a foreign species. In an infection, the infecting organism seeks to utilize the host's resources to multiply, usually at the expense of the host. The infecting organism, or pathogen, interferes with the normal functioning of the host and can lead to chronic wounds, gangrene, loss of an infected limb, and even death. The host's response to infection is inflammation. Colloquially, a pathogen is usually considered a microscopic organism though the definition is broader, including parasites, fungi, viruses, prions, and viroids. A symbiosis between parasite and host, whereby the relationship is beneficial for the former but detrimental to the latter, is characterised as parasitism. The branch of medicine that focuses on infections and pathogens is infectious disease. "When infection attacks the body, anti-infective drugs can help turn the tide of battle. Four types of anti-infective drugs exist: antibacterial, antiviral, antitubercular, and antifungal. A secondary infection is an infection that occurs during or following treatment of another already existing primary infection.

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