Once injured, the ankle is likely to be injured again. Volleyball knee injuries. The second most common injury to volleyball players caused by repeated pressure to the knee is jumper's knee, or 'patellar tendinopathy'.Damage to the tendons just below the kneecap or patella are commonplace to sports where quickly turning, jumping, and changing direction are often done.ommon volleyball injuries and their causes. Common volleyball injuries and their causes. Sports medicine literature speaks of two kinds of injuries, 'cumulative' overuse, and 'acute' traumatic injuries caused by a sudden impact.
helicobacter pylori bacteria is considered to be contagious between people generally the infectious agent may be transmitted by saliva air cough fecal oral route surfaces blood needles blood transfusions sexual contact mother to fetus etc
About 50% of the world population is estimated to have detectable H. pylori in their gastrointestinal tract (GI tract, but stomach, mainly). The infection is more common in crowded living conditions with poor sanitation. In countries with poor sanitation, approximately 90% of the adult population can be infected.