How to diagnose 'persistent infection' that leads to gastritis, gastric ulcers, and gastric cancer —Helicobacter pylori ...

A seventh grader from Palatine, Illinois, has turned eggshells into calcium carbonate crystals and used them to investigate ...

A cell sitting in fluid looks like one of the most passive things in biology. Nutrients drift toward it on the aimless ...

A two-year Chinese field trial shows that partially replacing chemical fertilizers with peanut shells and mushroom residue boosts soil organic carbon, enzyme activity, and beneficial microbes in ...

A case report from China describes a 12-year-old boy whose only sign of H. pylori-driven gastric and duodenal ulcers was iron ...

IIT Gandhinagar researchers find that active enzymes can accelerate molecular movement outside cells and boost transferrin ...

If crops showed yellow stress before knee-high, surface inhibitors or the wrong nutrient form were likely to blame. Ken ...

You don’t need to retest for COVID-19 if your symptoms have cleared or are improving. A positive PCR test may still occur weeks later, but it doesn’t mean you’re contagious. A positive COVID-19 test ...

A dark line on your home COVID test usually means you’re positive and have a lot of the virus. Even if the line is faint, consider the test positive and be cautious to avoid spreading COVID. The test ...

The best at-home STD tests offer fast and accurate results, use CLIA-certified labs, and accept health savings accounts (HSAs) and flexible spending accounts (FSAs). Most modern STD tests are highly ...