You may keep testing positive for COVID-19 even after feeling better for weeks or months. PCR tests are more sensitive and can show a positive result long after you're not contagious. Most people are ...

At-home testosterone test kits use a finger-prick blood sample, with results generally available within a week. Some companies also offer saliva-based tests, which are pain-free and easy to collect, ...

This study evaluated the biological importance of immobilized urease enzyme over the free urease. The support material used for urease immobilization was alginate. Generally, the immobilization of ...

Don't throw out your expired COVID tests just yet. Here's how to find out if the expiration date has been extended. Katie covered all things how-to at CNET, with a focus on Social Security and notable ...

Several states are reporting cases of measles, a highly contagious viral disease. Both children and adults can get measles. Before going to a clinic or emergency room, it’s important to check with ...

Jiangsu Key Laboratory of Sericultural and Animal Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, P. R. China Jiangsu Key Laboratory of ...

Matse DT, Krol DJ, Richards KG, Danaher M, Cummins E, Wang X and Forrestal PJ (2024) Corrigendum: Field efficacy of urease inhibitors for mitigation of ammonia emissions in agricultural field settings ...

A magnesium blood test checks if your magnesium levels are too high or too low. Symptoms, like muscle weakness or irregular heartbeat, might mean your magnesium levels aren't right. Magnesium is a ...

The WIDA ACCESS language proficiency test is used across close to 40 states as part of the federal requirement to determine whether English learners continue to need language-development services. The ...