Coronavirus disease is caused by a single species, the SARS-CoV-2 virus, but there are distinct kinds of 'Coronavirus' [1] that cause essentially the same disease. Confusingly, different types of ...

A muscle strain is when you damage a muscle or the tendons attached to it. (Photo credit: PhotoAlto Agency RF Collections/Getty Images) A muscle strain is an injury that happens when you overstretch ...

A group of leading international researchers has concluded the coronavirus behind the global pandemic has already mutated into a second strain, which appears to have spread faster and wider than the ...

A trapezius strain is a muscle or tendon injury that limits movement and strength in the arms. It occurs when the fibers are stretched beyond their typical limit. In severe cases, it can lead to a ...

A rotator cuff tear is a partial or complete severing of the rotator cuff tendons in the shoulder, usually due to injury. A strain is different, as it involves an overstretch of the tendons. The ...

Viruses can change and alter their genetic make-up. When these changes occur, the virus may become more or less of a threat to the human host. Virologists are ...

What is a Quadriceps Strain? The quadriceps, often shortened and referred to as the quads, are a group of muscles located on the front of the thigh. The quadriceps are actually four different muscles ...

Knee strains involve a tendon or muscle tear around the knee. Symptoms can include cramping, spasms, swelling, and bruising. A knee strain can happen due to twisting, overuse of the muscle, or an ...