Related topics: hiv · antibiotics · bacteria · immune system · virus

Coinfection: More than the sum of its parts

Organ and stem cell transplants are proven and frequently used methods in modern clinical practice. However, even when performed regularly in specialized centers, some patients still experience a number of serious complications ...

Time to rethink predicting pandemic infection rates?

During the first months of the COVID-19 pandemic, Joseph Lee McCauley, a physics professor at the University of Houston, was watching the daily data for six countries and wondered if infections were really growing exponentially. ...

Researchers develop virus live stream to study virus infection

Researchers from the Hubrecht Institute and Utrecht University have developed an advanced technique to monitor a virus infection live. The researchers from the groups of Marvin Tanenbaum and Frank van Kuppeveld expect that ...

Dogs at war with fungus

The fungus that some dogs carry in their nose evolves within the dog's nose. The genetic changes indicate adaptation of the fungus to the dog. That's also of importance for humans, since infection with this fungus can be ...

Researchers reveal unveils how HIV begins to invade cells

Scientists at the University of Virginia School of Medicine have developed a method to understand how HIV and other viruses first begin to infect our cells, and that could help us prevent COVID-19 and other diseases.

Sugar-coated viral proteins hijack and hitch a ride out of cells

Researchers from the Universities of Melbourne, York, Warwick and Oxford have shed light on how encapsulated viruses like hepatitis B, dengue and SARS-CoV-2 hijack the protein manufacturing and distribution pathways in the ...

Mystery molecule in bacteria is revealed to be a guard

Peculiar hybrid structures called retrons that are half RNA, half single-strand DNA are found in many species of bacteria. Since their discovery around 35 years ago, researchers have learned how to use retrons for producing ...

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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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