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Upper respiratory tract infection
Upper respiratory infections, commonly referred to the acronym URI, is the illness caused by an acute infection which involves the upper respiratory tract: nose, sinuses, pharynx, larynx, or bronchi. It is the most common cause of days missed from work or school and one of the most common reasons for a medical visit. It is estimated that the average adult has from two to three URI-type illnesses per year and the average child six to 10. In the United States, this represents approximately one billion acute upper respiratory illnesses annually. Recent studies show that up to 98% of all cases are viral in nature.
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Health & Medicine News
March 3, 2026
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Mar. 1, 2026 Scientists at Rice University have produced the first full, dye-free molecular atlas of an Alzheimer’s brain. By combining laser-based imaging with machine learning, they uncovered chemical changes ...
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Mar. 1, 2026 Scientists at Oregon State University have engineered a powerful new nanomaterial that zeroes in on cancer cells and destroys them from the inside out. Designed to exploit cancer’s unique chemistry—its acidity and high hydrogen peroxide ...
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Feb. 28, 2026 Scientists have built a massive cellular atlas showing how aging reshapes the body across 21 organs. Studying nearly 7 million cells, they found that aging starts earlier than expected and unfolds in ...
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Feb. 27, 2026 Researchers at Nagoya University have created a more efficient iron-based photocatalyst that could reduce the need for rare and expensive metals in advanced chemistry. Unlike earlier designs, the new ...
Feb. 27, 2026 Scientists have unveiled a breakthrough way to turn natural gas—long burned as fuel—into valuable chemical building blocks for medicines and other high-demand products. By designing a clever ...
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